tramadol hydrochloride 300 MG 24 HR Extended Release Oral Tablet

Generic Name: TRAMADOL HYDROCHLORIDE
Brand Name: TRAMADOL HYDROCHLORIDE
  • Substance Name(s):
  • TRAMADOL HYDROCHLORIDE

DRUG INTERACTIONS

7 Table 2 includes clinically significant drug interactions with tramadol hydrochloride extended-release tablets.

Table 2: Clinically Significant Drug Interactions with Tramadol Hydrochloride Extended-Release Tablets Inhibitors of CYP2D6 Clinical Impact: The concomitant use of tramadol hydrochloride extended-release tablets and CYP2D6 inhibitors may result in an increase in the plasma concentration of tramadol and a decrease in the plasma concentration of M1, particularly when an inhibitor is added after a stable dose of tramadol hydrochloride extended-release tablets is achieved.

Since M1 is a more potent µ-opioid agonist, decreased M1 exposure could result in decreased therapeutic effects, and may result in signs and symptoms of opioid withdrawal in patients who had developed physical dependence to tramadol.

Increased tramadol exposure can result in increased or prolonged therapeutic effects and increased risk for serious adverse events including seizures and serotonin syndrome.

After stopping a CYP2D6 inhibitor, as the effects of the inhibitor decline, the tramadol plasma concentration will decrease and the M1 plasma concentration will increase which could increase or prolong therapeutic effects but also increase adverse reactions related to opioid toxicity, and may cause potentially fatal respiratory depression [see Clinical Pharmacology ( 12.3 )] .

Intervention: If concomitant use of a CYP2D6 inhibitor is necessary, follow patients closely for adverse reactions including opioid withdrawal, seizures, and serotonin syndrome.

If a CYP2D6 inhibitor is discontinued, consider lowering tramadol hydrochloride extended-release tablets dosage until stable drug effects are achieved.

Follow patients closely for adverse events including respiratory depression and sedation.

Examples Quinidine, fluoxetine, paroxetine and bupropion Inhibitors of CYP3A4 Clinical Impact: The concomitant use of tramadol hydrochloride extended-release tablets and CYP3A4 inhibitors can increase the plasma concentration of tramadol and may result in a greater amount of metabolism via CYP2D6 and greater levels of M1.

Follow patients closely for increased risk of serious adverse events including seizures and serotonin syndrome, and adverse reactions related to opioid toxicity including potentially fatal respiratory depression, particularly when an inhibitor is added after a stable dose of tramadol hydrochloride extended-release tablets is achieved.

After stopping a CYP3A4 inhibitor, as the effects of the inhibitor decline, the tramadol plasma concentration will decrease [see Clinical Pharmacology ( 12.3 )] , resulting in decreased opioid efficacy and possibly signs and symptoms of opioid withdrawal in patients who had developed physical dependence to tramadol.

Intervention: If concomitant use is necessary, consider dosage reduction of tramadol hydrochloride extended-release tablets until stable drug effects are achieved.

Follow patients closely for seizures and serotonin syndrome, and signs of respiratory depression and sedation at frequent intervals.

If a CYP3A4 inhibitor is discontinued, consider increasing the tramadol hydrochloride extended-release tablets dosage until stable drug effects are achieved and follow patients for signs and symptoms of opioid withdrawal.

Examples Macrolide antibiotics (e.g., erythromycin), azole-antifungal agents (e.g.

ketoconazole), protease inhibitors (e.g., ritonavir) CYP3A4 Inducers Clinical Impact: The concomitant use of tramadol hydrochloride extended-release tablets and CYP3A4 inducers can decrease the plasma concentration of tramadol [see Clinical Pharmacology ( 12.3 )] , resulting in decreased efficacy or onset of a withdrawal syndrome in patients who have developed physical dependence to tramadol, [see Warnings and Precautions ( 5.6 )] .

After stopping a CYP3A4 inducer, as the effects of the inducer decline, the tramadol plasma concentration will increase [see Clinical Pharmacology ( 12.3 )] , which could increase or prolong both the therapeutic effects and adverse reactions, and may cause seizures and serotonin syndrome, and potentially fatal respiratory depression.

Intervention: If concomitant use is necessary, consider increasing the tramadol hydrochloride extended-release tablets dosage until stable drug effects are achieved.

Follow patients for signs of opioid withdrawal.

If a CYP3A4 inducer is discontinued, consider tramadol hydrochloride extended-release tablets dosage reduction and monitor for seizures and serotonin syndrome, and signs of sedation and respiratory depression.

Patients taking carbamazepine, a CYP3A4 inducer, may have a significantly reduced analgesic effect of tramadol.

Because carbamazepine increases tramadol metabolism and because of the seizure risk associated with tramadol, concomitant administration of tramadol hydrochloride extended-release tablets and carbamazepine is not recommended.

Examples: Rifampin, carbamazepine, phenytoin Benzodiazepines and Other Central Nervous System (CNS) Depressants Clinical Impact: Due to additive pharmacologic effect, the concomitant use of benzodiazepines or other CNS depressants, including alcohol, can increase the risk of hypotension, respiratory depression, profound sedation, coma, and death.

Intervention: Reserve concomitant prescribing of these drugs for use in patients for whom alternative treatment options are inadequate.

Limit dosages and durations to the minimum required.

Follow patients closely for signs of respiratory depression and sedation [see Warnings and Precautions ( 5.7 )] .

If concomitant use is warranted, consider prescribing naloxone for the emergency treatment of opioid overdose [see Dosage and Administration (2.2), Warnings and Precautions (5.1, 5.3, 5.7)].

Examples: Benzodiazepines and other sedatives/hypnotics, anxiolytics, tranquilizers, muscle relaxants, general anesthetics, antipsychotics, other opioids, alcohol.

Serotonergic Drugs Clinical Impact: The concomitant use of opioids with other drugs that affect the serotonergic neurotransmitter system has resulted in serotonin syndrome .

Intervention: If concomitant use is warranted, carefully observe the patient, particularly during treatment initiation and dose adjustment.

Discontinue tramadol hydrochloride extended-release tablets if serotonin syndrome is suspected.

Examples: Selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants (TCAs), triptans, 5-HT3 receptor antagonists, drugs that affect the serotonin neurotransmitter system (e.g., mirtazapine, trazodone, tramadol), certain muscle relaxants (i.e., cyclobenzaprine, metaxalone), monoamine oxidase (MAO) inhibitors (those intended to treat psychiatric disorders and also others, such as linezolid and intravenous methylene blue).

Monoamine Oxidase Inhibitors (MAOIs) Clinical Impact: MAOI interactions with opioids may manifest as serotonin syndrome [see Warnings and Precautions ( 5.8 )] or opioid toxicity (e.g., respiratory depression, coma) [see Warnings and Precautions ( 5.3 )].

Intervention: Do not use tramadol hydrochloride extended-release tablets in patients taking MAOIs or within 14 days of stopping such treatment.

Examples: phenelzine, tranylcypromine, linezolid Mixed Agonist/Antagonist and Partial Agonist Opioid Analgesics Clinical Impact: May reduce the analgesic effect of tramadol hydrochloride extended-release tablets and/or precipitate withdrawal symptoms.

Intervention: Avoid concomitant use.

Examples: butorphanol, nalbuphine, pentazocine, buprenorphine Muscle Relaxants Clinical Impact: Tramadol may enhance the neuromuscular blocking action of skeletal muscle relaxants and produce an increased degree of respiratory depression.

Intervention: Monitor patients for signs of respiratory depression that may be greater than otherwise expected and decrease the dosage of tramadol hydrochloride extended-release tablets and/or the muscle relaxant as necessary.

Due to the risk of respiratory depression with concomitant use of skeletal muscle relaxants and opioids, consider prescribing naloxone for the emergency treatment of opioid overdose [see Dosage and Administration (2.2), Warnings and Precautions (5.3, 5.7)] Diuretics Clinical Impact: Opioids can reduce the efficacy of diuretics by inducing the release of antidiuretic hormone.

Intervention: Monitor patients for signs of diminished diuresis and/or effects on blood pressure and increase the dosage of the diuretic as needed.

Anticholinergic Drugs Clinical Impact: The concomitant use of anticholinergic drugs may increase risk of urinary retention and/or severe constipation, which may lead to paralytic ileus.

Intervention: Monitor patients for signs of urinary retention or reduced gastric motility when tramadol hydrochloride extended-release tablets are used concomitantly with anticholinergic drugs.

Digoxin Clinical Impact: Post-marketing surveillance of tramadol has revealed rare reports of digoxin toxicity.

Intervention: Follow patients for signs of digoxin toxicity and adjust the dosage of digoxin as needed.

Warfarin Clinical Impact: Post-marketing surveillance of tramadol has revealed rare reports of alteration of warfarin effect, including elevation of prothrombin times.

Intervention: Monitor the prothrombin time of patients on warfarin for signs of an interaction and adjust the dosage of warfarin as needed.

Mixed Agonist/Antagonist and Partial Agonist Opioid Analgesics: Avoid use with tramadol hydrochloride extended-release tablets because they may reduce analgesic effect of tramadol hydrochloride extended-release tablets or precipitate withdrawal symptoms.

( 5.17 , 7 )

OVERDOSAGE

10 Clinical Presentation Acute overdosage with tramadol hydrochloride extended-release tablets can be manifested by respiratory depression, somnolence progressing to stupor or coma, skeletal muscle flaccidity, cold and clammy skin, constricted pupils, and, in some cases, pulmonary edema, bradycardia, QT prolongation, hypotension, partial or complete airway obstruction, atypical snoring, and death.

Marked mydriasis rather than miosis may be seen with hypoxia in overdose situations [see Clinical Pharmacology ( 12.2 )] .

Treatment of Overdose In case of overdose, priorities are the reestablishment of a patent and protected airway and institution of assisted or controlled ventilation, if needed.

Employ other supportive measures (including oxygen and vasopressors) in the management of circulatory shock and pulmonary edema as indicated.

Cardiac arrest or arrhythmias will require advanced life-support techniques.

Opioid antagonists, such as naloxone, are specific antidotes to respiratory depression resulting from opioid overdose.

For clinically significant respiratory or circulatory depression secondary to tramadol overdose, administer an opioid antagonist.

While naloxone will reverse some, but not all, symptoms caused by overdosage with tramadol, the risk of seizures is also increased with naloxone administration.

In animals, convulsions following the administration of toxic doses of tramadol hydrochloride extended-release tablets could be suppressed with barbiturates or benzodiazepines but were increased with naloxone.

Naloxone administration did not change the lethality of an overdose in mice.

Hemodialysis is not expected to be helpful in an overdose because it removes less than 7% of the administered dose in a 4-hour dialysis period.

Because the duration of opioid reversal is expected to be less than the duration of action of tramadol in tramadol hydrochloride extended-release tablets, carefully monitor the patient until spontaneous respiration is reliably reestablished.

Tramadol hydrochloride extended-release tablets will continue to release tramadol and add to the tramadol load for 24 to 48 hours or longer following ingestion, necessitating prolonged monitoring.

If the response to an opioid antagonist is suboptimal or only brief in nature, administer additional antagonist as directed by the product’s prescribing information.

In an individual physically dependent on opioids, administration of the recommended usual dosage of the antagonist will precipitate an acute withdrawal syndrome.

The severity of the withdrawal symptoms experienced will depend on the degree of physical dependence and the dose of the antagonist administered.

If a decision is made to treat serious respiratory depression in the physically dependent patient, administration of the antagonist should be initiated with care and by titration with smaller than usual doses of the antagonist.

DESCRIPTION

11 Tramadol hydrochloride is an opioid agonist in an extended-release tablet formulation for oral use.

The chemical name is (±) cis -2-[(dimethylamino) methyl]-1-(3-methoxyphenyl) cyclohexanol hydrochloride.

Its structural formula is: The molecular weight of tramadol hydrochloride is 299.84.

It is a white, crystalline powder that is freely soluble in water and methanol, very slightly soluble in acetone and has a pKa of 9.41.

The n-octanol/water log partition coefficient (logP) is 1.35 at pH 7.

Tramadol hydrochloride extended-release tablets contain 100 mg, 200 mg or 300 mg of tramadol hydrochloride, USP in an extended-release formulation.

The tablets are white in color and contain the inactive ingredients pregelatinized maize starch, hypromellose, mannitol, magnesium stearate, cellulose acetate and polyethylene glycol.

Imprinting ink contains, shellac glaze, iron oxide black, N-butyl alcohol, ammonium hydroxide and propylene glycol.

tramadol-structure

CLINICAL STUDIES

14 Clinical Trial Experience Tramadol hydrochloride extended-release tablets were studied in patients with chronic, moderate to moderately severe pain due to osteoarthritis and/or low back pain in four 12-week, randomized, double-blind, placebo-controlled trials.

To qualify for inclusion into these studies, patients were required to have moderate to moderately severe pain as defined by a pain intensity score of ≥40 mm, off previous medications, on a 0 to 100 mm visual analog scale (VAS).

Adequate evidence of efficacy was demonstrated in the following two studies: Study 1 : Osteoarthritis of the Knee and/or Hip In one 12-week randomized, double-blind, placebo-controlled study, patients with moderate to moderately severe pain due to osteoarthritis of the knee and/or hip were administered doses from 100 mg to 400 mg daily.

Treatment was initiated at 100 mg QD for four days then increased by 100 mg per day increments every five days to the randomized fixed dose.

Between 51% and 59% of patients in the tramadol hydrochloride extended-release tablets treatment groups completed the study and 56% of patients in the placebo group completed the study.

Discontinuations due to adverse events were more common in the tramadol hydrochloride extended-release tablets 200 mg, 300 mg and 400 mg treatment groups (20%, 27%, and 30% of discontinuations, respectively) compared to 14% of the patients treated with tramadol hydrochloride extended-release tablets 100 mg and 10% of patients treated with placebo.

Pain, as assessed by the WOMAC Pain subscale, was measured at 1, 2, 3, 6, 9, and 12 weeks and change from baseline assessed.

A responder analysis based on the percent change in WOMAC Pain subscale demonstrated a statistically significant improvement in pain for the 100 mg and 200 mg treatment groups compared to placebo (see Figure 2).

Study 2: Osteoarthritis of the Knee In one 12-week randomized, double-blind, placebo-controlled flexible-dosing trial of tramadol hydrochloride extended-release tablets in patients with osteoarthritis of the knee, patients titrated to an average daily tramadol hydrochloride extended-release tablets dose of approximately 270 mg/day.

Forty-nine percent of patients randomized to tramadol hydrochloride extended-release tablets completed the study, while 52% of patients randomized to placebo completed the study.

Most of the early discontinuations in the tramadol hydrochloride extended-release tablets treatment group were due to adverse events, accounting for 27% of the early discontinuations in contrast to 7% of the discontinuations from the placebo group.

Thirty-seven percent of the placebo-treated patients discontinued the study due to lack of efficacy compared to 15% of tramadol hydrochloride extended-release tablets-treated patients.

The tramadol hydrochloride extended-release tablets group demonstrated a statistically significant decrease in the mean VAS score, and a statistically significant difference in the responder rate, based on the percent change from baseline in the VAS score, measured at 1, 2, 4, 8, and 12 weeks, between patients receiving tramadol hydrochloride extended-release tablets and placebo (see Figure 3).

tramadol-figure3 tramadol-figure4

HOW SUPPLIED

16 /STORAGE AND HANDLING Tramadol hydrochloride extended-release tablets are supplied in the following package and dose strength forms: 100 mg: White, round shape, biconvex, beveled edge, coated tablet with release portal on the center of the tablet on any one side, imprinted “531” with black ink on one side and plain on other side.

Bottles of 30’s with Child Resistant Cap ………………

NDC 47335-859-83 Bottles of 100’s with Child Resistant Cap …………….

NDC 47335-859-88 Bottles of 100’s with Non Child Resistant Cap ……… NDC 47335-859-08 Bottles of 1000’s with Non Child Resistant Cap ……..

NDC 47335-859-18 200 mg: White, round shape, biconvex, beveled edge, coated tablet with release portal on the center of the tablet on any one side, imprinted “533” with black ink on one side and plain on other side.

Bottles of 30’s with Child Resistant Cap ………………

NDC 47335-860-83 Bottles of 100’s with Child Resistant Cap …………….

NDC 47335-860-88 Bottles of 100’s with Non Child Resistant Cap ……… NDC 47335-860-08 Bottles of 1000’s with Non Child Resistant Cap ……..

NDC 47335-860-18 300 mg: White, round shape, biconvex, beveled edge, coated tablet with release portal on the center of the tablet on any one side, imprinted “537” with black ink on one side and plain on other side.

Bottles of 30’s with Child Resistant Cap ………………

NDC 47335-861-83 Bottles of 100’s with Child Resistant Cap …………….

NDC 47335-861-88 Bottles of 100’s with Non Child Resistant Cap ……… NDC 47335-861-08 Bottles of 1000’s with Non Child Resistant Cap ……..

NDC 47335-861-18 Store at 20° to 25°C (68° to 77°F); excursions permitted between 15° and 30°C (59° and 86°F) [see USP Controlled Room Temperature].

Dispense in a tight, light resistant container.

Warning: keep out of reach of children.

Store tramadol hydrochloride extended-release tablets securely and dispose of properly [see Patient Counseling Information (17) ].

RECENT MAJOR CHANGES

Warnings and Precautions (5.19, 5.20) 06/2021

GERIATRIC USE

8.5 Geriatric Use Nine-hundred-one elderly (65 years of age or older) subjects were exposed to tramadol hydrochloride extended-release tablets in clinical trials.

Of those subjects, 156 were 75 years of age and older.

In general, higher incidence rates of adverse events were observed for patients older than 65 years of age compared with patients 65 years and younger, particularly for the following adverse events: constipation, fatigue, weakness, postural hypotension and dyspepsia.

For this reason, tramadol hydrochloride extended-release tablets should be used with caution in patients over 65 years of age, and with even greater caution in patients older than 75 years of age [see Dosage and Administration ( 2.

5), Clinical Pharmacology ( 12.3 )].

Respiratory depression is the chief risk for elderly patients treated with opioids, and has occurred after large initial doses were administered to patients who were not opioidtolerant or when opioids were co-administered with other agents that depress respiration.

Titrate the dosage of tramadol hydrochloride extended-release tablets slowly in geriatric patients and monitor closely for signs of central nervous system and respiratory depression [see Warnings and Precautions ( 5.12 )] .

Tramadol is known to be substantially excreted by the kidney, and the risk of adverse reactions to this drug may be greater in patients with impaired renal function.

Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function.

DOSAGE FORMS AND STRENGTHS

3 Extended-release tablets are available as: 100 mg tablets: White, round shape, biconvex, beveled edge, coated tablet with release portal on the center of the tablet on any one side, imprinted “531” with black ink on one side and plain on other side.

200 mg tablets: White, round shape, biconvex, beveled edge, coated tablet with release portal on the center of the tablet on any one side, imprinted “533” with black ink on one side and plain on other side.

300 mg tablets: White, round shape, biconvex, beveled edge, coated tablet with release portal on the center of the tablet on any one side, imprinted “537” with black ink on one side and plain on other side.

Extended-release tablets 100 mg, 200 mg, and 300 mg (3)

MECHANISM OF ACTION

12.1 Mechanism of Action Tramadol hydrochloride extended-release tablets contain tramadol, an opioid agonist and an inhibitor of reuptake of norepinephrine and serotonin.

Although the mode of action of tramadol is not completely understood, the analgesic effect of tramadol is believed to be due to both binding to μ-opioid receptors and weak inhibition of reuptake of norepinephrine and serotonin.

Opioid activity of tramadol is due to both low affinity binding of the parent compound and higher affinity binding of the O-desmethyl metabolite M1 to μ-opioid receptors.

In animal models, M1 is up to 6 times more potent than tramadol in producing analgesia and 200 times more potent in μ-opioid binding.

Tramadol-induced analgesia is only partially antagonized by the opioid antagonist naloxone in several animal tests.

The relative contribution of both tramadol and M1 to human analgesia is dependent upon the plasma concentrations of each compound.

Tramadol has been shown to inhibit reuptake of norepinephrine and serotonin in vitro , as have some other opioid analgesics.

These mechanisms may contribute independently to the overall analgesic profile of tramadol.

Apart from analgesia, tramadol administration may produce a constellation of symptoms (including dizziness, somnolence, nausea, constipation, sweating and pruritus) similar to that of other opioids.

In contrast to morphine, tramadol has not been shown to cause histamine release.

At therapeutic doses, tramadol has no effect on heart rate, left-ventricular function, or cardiac index.

Orthostatic hypotension has been observed.

INDICATIONS AND USAGE

1 Tramadol hydrochloride extended-release tablets are indicated for the management of pain severe enough to require daily, around-the-clock, long-term opioid treatment and for which alternative treatment options are inadequate.

Limitations of Use Because of the risks of addiction, abuse, and misuse with opioids, even at recommended doses, and because of the greater risks of overdose and death with extended-release opioid formulations [ see Warnings and Precautions (5.1) ], reserve tramadol hydrochloride extended-release tablets for use in patients for whom alternative treatment options (e.g., non-opioid analgesics or immediate-release opioids) are ineffective, not tolerated, or would be otherwise inadequate to provide sufficient management of pain.

Tramadol hydrochloride extended-release tablets are not indicated as an as-needed (prn) analgesic.

Tramadol hydrochloride is an opioid agonist indicated for the management of pain severe enough to require daily around-the-clock, long-term opioid treatment and for which alternative treatment options are inadequate.

(1) Limitations of Use Because of the risks of addiction, abuse, and misuse with opioids, even at recommended doses, and because of the greater risks of overdose and death with extended-release opioid formulations, reserve tramadol hydrochloride extended-release tablets for use in patients for whom alternative treatment options (e.g., non-opioid analgesics or immediate-release opioids) are ineffective, not tolerated, or would be otherwise inadequate to provide sufficient management of pain.

(1) Tramadol hydrochloride extended-release tablets are not indicated as an as-needed (prn) analgesic.

(1)

PEDIATRIC USE

8.4 Pediatric Use The safety and effectiveness of tramadol hydrochloride extended-release tablets in pediatric patients have not been established.

Life-threatening respiratory depression and death have occurred in children who received tramadol [see Warnings and Precautions ( 5.4 )] .

In some of the reported cases, these events followed tonsillectomy and/or adenoidectomy, and one of the children had evidence of being an ultra-rapid metabolizer of tramadol (i.e., multiple copies of the gene for cytochrome P450 isoenzyme 2D6).

Children with sleep apnea may be particularly sensitive to the respiratory depressant effects of tramadol.

Because of the risk of life-threatening respiratory depression and death: Tramadol hydrochloride extended-release tablets are contraindicated for all children younger than age 12 years of age [ see Contraindications ( 4 ) ].

Tramadol hydrochloride extended-release tablets are contraindicated for post-operative management in pediatric patients younger than 18 years of age following tonsillectomy and/or adenoidectomy [ see Contraindications ( 4 ) ].

Avoid the use of tramadol hydrochloride extended-release tablets in adolescents 12 to 18 years of age who have other risk factors that may increase their sensitivity to the respiratory depressant effects of tramadol unless the benefits outweigh the risks.

Risk factors include conditions associated with hypoventilation, such as postoperative status, obstructive sleep apnea, obesity, severe pulmonary disease, neuromuscular disease, and concomitant use of other medications that cause respiratory depression.

[see Warnings and Precautions ( 5.4 )] .

PREGNANCY

8.1 Pregnancy Risk Summary Prolonged use of opioid analgesics during pregnancy may cause neonatal opioid withdrawal syndrome [see Warnings and Precautions ( 5.5 )] .

Available data with tramadol hydrochloride extended-release tablets in pregnant women are insufficient to inform a drug-associated risk for major birth defects and miscarriage.

In animal reproduction studies, tramadol administration during organogenesis decreased fetal weights and reduced ossification in mice, rats, and rabbits at 1.4, 0.6, and 3.6 times the maximum recommended human daily dosage (MRHD).

Tramadol decreased pup body weight and increased pup mortality at 1.2 and 1.9 times the MRHD [see Data].

Based on animal data, advise pregnant women of the potential risk to a fetus.

The estimated background risk of major birth defects and miscarriage for the indicated population is unknown.

All pregnancies have a background risk of birth defect, loss, or other adverse outcomes.

In the U.S.

general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively.

Clinical Considerations Fetal/Neonatal Adverse Reactions Prolonged use of opioid analgesics during pregnancy for medical or nonmedical purposes can result in physical dependence in the neonate and neonatal opioid withdrawal syndrome shortly after birth.

Neonatal opioid withdrawal syndrome presents as irritability, hyperactivity and abnormal sleep pattern, high pitched cry, tremor, vomiting, diarrhea, and failure to gain weight.

The onset, duration, and severity of neonatal opioid withdrawal syndrome vary based on the specific opioid used, duration of use, timing and amount of last maternal use, and rate of elimination of the drug by the newborn.

Observe newborns for symptoms and signs of neonatal opioid withdrawal syndrome and manage accordingly [see Warnings and Precautions ( 5.5 )] .

Neonatal seizures, neonatal withdrawal syndrome, fetal death and stillbirth have been reported with tramadol during post-approval use of tramadol immediate-release products.

Labor or Delivery Opioids cross the placenta and may produce respiratory depression and psycho-physiologic effects in neonates.

An opioid antagonist, such as naloxone, must be available for reversal of opioid-induced respiratory depression in the neonate.

Tramadol hydrochloride extended-release tablets are not recommended for use in pregnant women during or immediately prior to labor, when use of shorter-acting analgesics or other analgesic techniques are more appropriate.

Opioid analgesics, including tramadol hydrochloride extended-release tablets, can prolong labor through actions which temporarily reduce the strength, duration, and frequency of uterine contractions.

However, this effect is not consistent and may be offset by an increased rate of cervical dilation, which tends to shorten labor.

Monitor neonates exposed to opioid analgesics during labor for signs of excess sedation and respiratory depression.

Tramadol has been shown to cross the placenta.

The mean ratio of serum tramadol in the umbilical veins compared to maternal veins was 0.83 for 40 women given tramadol during labor.

The effect of tramadol hydrochloride extended-release tablets, if any, on the later growth, development, and functional maturation of the child is unknown.

Data Animal Data Tramadol has been shown to be embryotoxic and fetotoxic in mice, (120 mg/kg), rats (25 mg/kg) and rabbits (75 mg/kg) at maternally toxic dosages, but was not teratogenic at these dose levels.

These doses on a mg/m 2 basis are 1.9, 0.8, and 4.9 times the maximum recommended human daily dosage (MRHD) for mouse, rat and rabbit, respectively.

No drug-related teratogenic effects were observed in progeny of mice (up to 140 mg/kg), rats (up to 80 mg/kg) or rabbits (up to 300 mg/kg) treated with tramadol by various routes.

Embryo and fetal toxicity consisted primarily of decreased fetal weights, decreased skeletal ossification, and increased supernumerary ribs at maternally toxic dose levels.

Transient delays in developmental or behavioral parameters were also seen in pups from rat dams allowed to deliver.

Embryo and fetal lethality were reported only in one rabbit study at 300 mg/kg, a dose that would cause extreme maternal toxicity in the rabbit.

The dosages listed for mouse, rat, and rabbit are 2.3, 2.6, and 19 times the MRHD, respectively.

Tramadol was evaluated in pre- and post-natal studies in rats.

Progeny of dams receiving oral (gavage) dose levels of 50 mg/kg (1.6 times the MRHD) or greater had decreased weights, and pup survival was decreased early in lactation at 80 mg/kg (2.6 times the MRHD).

NUSRING MOTHERS

8.3 Females and Males of Reproductive Potential Infertility Chronic use of opioids may cause reduced fertility in females and males of reproductive potential.

It is not known whether these effects on fertility are reversible [ see Adverse Reactions ( 6.2 ), Clinical Pharmacology ( 12.2 ), Nonclinical Toxicology ( 13.1 ) ].

BOXED WARNING

WARNING: ADDICTION, ABUSE, AND MISUSE; RISK EVALUATION AND MITIGATION STRATEGY (REMS); LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION; ULTRA-RAPID METABOLISM OF TRAMADOL AND OTHER RISK FACTORS FOR LIFE-THREATENING RESPIRATORY DEPRESSION IN CHILDREN; NEONATAL OPIOID WITHDRAWAL SYNDROME; INTERACTIONS WITH DRUGS AFFECTING CYTOCHROME P450 ISOENZYMES; and RISKS FROM CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS Addiction, Abuse, and Misuse Tramadol hydrochloride extended-release tablets expose patients and other users to the risks of opioid addiction, abuse, and misuse, which can lead to overdose and death.

Assess each patient’s risk prior to prescribing tramadol hydrochloride extended-release tablets, and monitor all patients regularly for the development of these behaviors and conditions [ see Warnings and Precautions (5.1) ].

Opioid Analgesic Risk Evaluation and Mitigation Strategy (REMS) To ensure that the benefits of opioid analgesics outweigh the risks of addiction, abuse, and misuse, the Food and Drug Administration (FDA) has required a REMS for these products [ see Warnings and Precautions (5.2) ].

Under the requirements of the REMS, drug companies with approved opioid analgesic products must make REMS-compliant education programs available to healthcare providers.

Healthcare providers are strongly encouraged to complete a REMS-compliant education program, counsel patients and/or their caregivers, with every prescription, on safe use, serious risks, storage, and disposal of these products, emphasize to patients and their caregivers the importance of reading the Medication Guide every time it is provided by their pharmacist, and consider other tools to improve patient, household, and community safety.

Life-Threatening Respiratory Depression Serious, life-threatening, or fatal respiratory depression may occur with use of tramadol hydrochloride extended-release tablets.

Monitor for respiratory depression, especially during initiation of tramadol hydrochloride extended-release tablets or following a dose increase.

Instruct patients to swallow tramadol hydrochloride extended-release tablets intact, and not to cut, break, chew, crush, or dissolve the tablets to avoid exposure to a potentially fatal dose of tramadol [ see Warnings and Precautions (5.3) ].

Accidental Ingestion Accidental ingestion of even one dose of tramadol hydrochloride extended-release tablet, especially by children, can result in a fatal overdose of tramadol [ see Warnings and Precautions (5.3) ].

Ultra-Rapid Metabolism Of Tramadol And Other Risk Factors For Life-Threatening Respiratory Depression In Children Life-threatening respiratory depression and death have occurred in children who received tramadol.

Some of the reported cases followed tonsillectomy and/or adenoidectomy; in at least one case, the child had evidence of being an ultra-rapid metabolizer of tramadol due to a CYP2D6 polymorphism [ see Warnings and Precautions (5.4) ].

Tramadol hydrochloride extended-release tablets are contraindicated in children younger than 12 years of age and in children younger than 18 years of age following tonsillectomy and/or adenoidectomy [ see Contraindications (4) ].

Avoid the use of tramadol hydrochloride extended-release tablets in adolescents 12 to 18 years of age who have other risk factors that may increase their sensitivity to the respiratory depressant effects of tramadol.

[ see Warnings and Precautions (5.4) ] Neonatal Opioid Withdrawal Syndrome Prolonged use of tramadol hydrochloride extended-release tablets during pregnancy can result in neonatal opioid withdrawal syndrome, which may be life-threatening if not recognized and treated, and requires management according to protocols developed by neonatology experts.

If opioid use is required for a prolonged period in a pregnant woman, advise the patient of the risk of neonatal opioid withdrawal syndrome and ensure that appropriate treatment will be available [ see Warnings and Precautions (5.5) ].

Interactions with Drugs Affecting Cytochrome P450 Isoenzymes The effects of concomitant use or discontinuation of cytochrome P450 3A4 inducers, 3A4 inhibitors, or 2D6 inhibitors with tramadol are complex.

Use of cytochrome P450 3A4 inducers, 3A4 inhibitors, or 2D6 inhibitors with tramadol hydrochloride extended-release tablets requires careful consideration of the effects on the parent drug, tramadol, and the active metabolite, M1 [ see Warnings and Precautions (5.6), Drug Interactions (7) ].

Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death [ see Warnings and Precautions (5.7), Drug Interactions (7) ].

Reserve concomitant prescribing of tramadol hydrochloride extended-release injection and benzodiazepines or other CNS depressants for use in patients for whom alternative treatment options are inadequate.

Limit dosages and durations to the minimum required.

Follow patients for signs and symptoms of respiratory depression and sedation.

WARNING: ADDICTION, ABUSE, AND MISUSE; RISK EVALUATION AND MITIGATION STRATEGY (REMS); LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION; ULTRA-RAPID METABOLISM OF TRAMADOL AND OTHER RISK FACTORS FOR LIFE-THREATENING RESPIRATORY DEPRESSION IN CHILDREN; NEONATAL OPIOID WITHDRAWAL SYNDROME; INTERACTIONS WITH DRUGS AFFECTING CYTOCHROME P450 ISOENZYMES; and RISKS FROM CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS See full prescribing information for complete boxed warning .

Tramadol hydrochloride extended-release tablets expose users to risks of addiction, abuse, and misuse, which can lead to overdose and death.

Assess patient’s risk before prescribing and monitor regularly for these behaviors and conditions.

( 5.1 ) To ensure that the benefits of opioid analgesics outweigh the risks of addiction, abuse, and misuse, the Food and Drug Administration (FDA) has required a Risk Evaluation and Mitigation Strategy (REMS) for these products.

(5.2) Serious, life-threatening, or fatal respiratory depression may occur.

Monitor closely, especially upon initiation or following a dose increase.

Instruct patients to swallow t ramadol hydrochloride extended-release tablets intact, and not to cut, break, chew, crush, or dissolve the tablets to avoid exposure to a potentially fatal dose of tramadol.

( 5.3 ) Accidental ingestion of tramadol hydrochloride extended-release tablets, especially by children, can result in a fatal overdose of tramadol.

( 5.3 ) Life-threatening respiratory depression and death have occurred in children who received tramadol.

Some of the reported cases followed tonsillectomy and/or adenoidectomy; in at least one case, the child had evidence of being an ultra-rapid metabolizer of tramadol due to a CYP2D6 polymorphism ( 5.4 ).

T ramadol hydrochloride extended-release tablets are contraindicated in children younger than 12 years of age and in children younger than 18 years of age following tonsillectomy and/or adenoidectomy ( 4 ) .

Avoid the use of t ramadol hydrochloride extended-release tablets in adolescents 12 to 18 years of age who have other risk factors that may increase their sensitivity to the respiratory depressant effects of tramadol.

[see Warnings and Precautions ( 5.4 )] Prolonged use of tramadol hydrochloride extended-release tablets during pregnancy can result in neonatal opioid withdrawal syndrome, which may be life-threatening if not recognized and treated.

If prolonged opioid use is required in a pregnant woman, advise the patient of the risk of neonatal opioid withdrawal syndrome and ensure that appropriate treatment will be available.

( 5.5 ) The effects of concomitant use or discontinuation of cytochrome P450 3A4 inducers, 3A4 inhibitors, or 2D6 inhibitors with tramadol are complex.

Use of cytochrome P450 3A4 inducers, 3A4 inhibitors, or 2D6 inhibitors with tramadol hydrochloride extended-release tablets requires careful consideration of the effects on the parent drug, tramadol, and the active metabolite, M1 ( 5.6 , 7 ) Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death.

Reserve concomitant prescribing for use in patients for whom alternative treatment options are inadequate; limit dosages and durations to the minimum required; and follow patients for signs and symptoms of respiratory depression and sedation.

( 5.7 , 7 )

WARNING AND CAUTIONS

5 WARNINGS AND PRECAUTIONS Serotonin Syndrome: Potentially life-threatening condition could result from concomitant serotonergic drug administration.

Discontinue tramadol hydrochloride extended-release tablets if serotonin syndrome is suspected.

(5.8) Risk of Seizure : Present within recommended dosage range.

Risk is increased with higher than recommended doses and concomitant use of SSRIs, SNRIs, anorectics, tricyclic antidepressants and other tricyclic compounds, other opioids, MAOIs, neuroleptics, other drugs that reduce seizure threshold, in patients with epilepsy or at risk for seizures.

( 5.9 , 7 ) Risk of Suicide : Do not use tramadol hydrochloride extended-release tablets in suicidal or addiction-prone patients.

Use with caution in those taking tranquilizers, antidepressants or abuse alcohol.

( 5.10 ) Adrenal Insufficiency : If diagnosed, treat with physiologic replacement of corticosteroids, and wean patient off of the opioid.

( 5.11 ) Life-Threatening Respiratory Depression in Patients with Chronic Pulmonary Disease or in Elderly, Cachectic, or Debilitated Patients: Monitor closely, particularly during initiation and titration.

( 5.12 ) Severe Hypotension: Monitor during dosage initiation and titration.

Avoid use of tramadol hydrochloride extended-release tablets in patients with circulatory shock.

( 5.1 3) Risks of Use in Patients with Increased Intracranial Pressure, Brain Tumors, Head Injury, or Impaired Consciousness: Monitor for sedation and respiratory depression.

Avoid use of tramadol hydrochloride extended-release tablets in patients with impaired consciousness or coma.

( 5.14 ) 5.1 Addiction, Abuse, and Misuse Tramadol hydrochloride extended-release tablet contains tramadol, a Schedule IV controlled substance.

As an opioid, tramadol hydrochloride extended-release tablet exposes users to the risks of addiction, abuse, and misuse.

Because extended-release products such as tramadol hydrochloride extended-release tablets deliver the opioid over an extended period of time, there is a greater risk for overdose and death due to the larger amount of tramadol present [see Drug Abuse and Dependence (9)].

Although the risk of addiction in any individual is unknown, it can occur in patients appropriately prescribed tramadol hydrochloride extended-release tablets.

Addiction can occur at recommended dosages and if the drug is misused or abused.

Assess each patient’s risk for opioid addiction, abuse, or misuse prior to prescribing tramadol hydrochloride extended-release tablets, and monitor all patients receiving tramadol hydrochloride extended-release tablets for the development of these behaviors and conditions.

Risks are increased in patients with a personal or family history of substance abuse (including drug or alcohol abuse or addiction) or mental illness (e.g., major depression).

The potential for these risks should not, however, prevent the proper management of pain in any given patient.

Patients at increased risk may be prescribed opioids such as tramadol hydrochloride extended-release tablets, but use in such patients necessitates intensive counseling about the risks and proper use of tramadol hydrochloride extended-release tablets along with intensive monitoring for signs of addiction, abuse, and misuse.

Consider prescribing naloxone for the emergency treatment of opioid overdose [see Dosage and Administration (2.2), Warnings and Precautions (5.3)].

Abuse or misuse of tramadol hydrochloride extended-release tablets by cutting, breaking, chewing, crushing, snorting, or injecting the dissolved product will result in the uncontrolled delivery of tramadol and can result in overdose and death [see Overdosage (10)].

Opioids are sought by drug abusers and people with addiction disorders and are subject to criminal diversion.

Consider these risks when prescribing or dispensing tramadol hydrochloride extended-release tablets.

Strategies to reduce these risks include prescribing the drug in the smallest appropriate quantity and advising the patient on the proper disposal of unused drug [see Patient Counseling Information (17)] .

Contact local state professional licensing board or state controlled substances authority for information on how to prevent and detect abuse or diversion of this product.

5.2 Opioid Analgesic Risk Evaluation and Mitigation Strategy (REMS) To ensure that the benefits of opioid analgesics outweigh the risks of addiction, abuse, and misuse, the Food and Drug Administration (FDA) has required a Risk Evaluation and Mitigation Strategy (REMS) for these products.

Under the requirements of the REMS, drug companies with approved opioid analgesic products must make REMS-compliant education programs available to healthcare providers.

Healthcare providers are strongly encouraged to do all of the following: Complete a REMS-compliant education program offered by an accredited provider of continuing education (CE) or another education program that includes all the elements of the FDA Education Blueprint for Health Care Providers Involved in the Management or Support of Patients with Pain.

Discuss the safe use, serious risks, and proper storage and disposal of opioid analgesics with patients and/or their caregivers every time these medicines are prescribed.

The Patient Counseling Guide (PCG) can be obtained at this link: www.fda.gov/OpioidAnalgesicREMSPCG.

Emphasize to patients and their caregivers the importance of reading the Medication Guide that they will receive from their pharmacist every time an opioid analgesic is dispensed to them.

Consider using other tools to improve patient, household, and community safety, such as patient-prescriber agreements that reinforce patient-prescriber responsibilities.

To obtain further information on the opioid analgesic REMS and for a list of accredited REMS CME/CE, call 800-503-0784, or log on to www.opioidanalgesicrems.com .

The FDA Blueprint can be found at www.fda.gov/OpioidAnalgesicREMSBlueprint .

5.3 Life-Threatening Respiratory Depression Serious, life-threatening, or fatal respiratory depression has been reported with the use of opioids, even when used as recommended.

Respiratory depression, if not immediately recognized and treated, may lead to respiratory arrest and death.

Management of respiratory depression may include close observation, supportive measures, and use of opioid antagonists, depending on the patient’s clinical status [see Overdosage (10)] .

Carbon dioxide (CO 2 ) retention from opioid- induced respiratory depression can exacerbate the sedating effects of opioids.

While serious, life-threatening, or fatal respiratory depression can occur at any time during the use of tramadol hydrochloride extended-release tablets, the risk is greatest during the initiation of therapy or following a dosage increase.

Monitor patients closely for respiratory depression, especially within the first 24-72 hours of initiating therapy with and following dosage increases of tramadol hydrochloride extended-release tablets.

To reduce the risk of respiratory depression, proper dosing and titration of tramadol hydrochloride extended-release tablets are essential [see Dosage and Administration (2)] .

Overestimating the tramadol hydrochloride extended-release tablets dosage when converting patients from another opioid product can result in a fatal overdose with the first dose.

Accidental ingestion of even one dose of tramadol hydrochloride extended-release tablet, especially by children, can result in respiratory depression and death due to an overdose of tramadol.

Educate patients and caregivers on how to recognize respiratory depression and emphasize the importance of calling 911 or getting emergency medical help right away in the event of a known or suspected overdose [see Patient Counseling Information (17)].

Opioids can cause sleep-related breathing disorders including central sleep apnea (CSA) and sleep-related hypoxemia.

Opioid use increases the risk of CSA in a dose-dependent fashion.

In patients who present with CSA, consider decreasing the opioid dosage using best practices for opioid taper [see Dosage and Administration (2.5) ] .

Patient Access to Naloxone for the Emergency Treatment of Opioid Overdose Discuss the availability of naloxone for the emergency treatment of opioid overdose with the patient and caregiver and assess the potential need for access to naloxone, both when initiating and renewing treatment with tramadol hydrochloride extended-release tablet.

Inform patients and caregivers about the various ways to obtain naloxone as permitted by individual state naloxone dispensing and prescribing requirements or guidelines (e.g., by prescription, directly from a pharmacist, or as part of a community-based program).

Educate patients and caregivers on how to recognize respiratory depression and emphasize the importance of calling 911 or getting emergency medical help, even if naloxone is administered [see Patient Counseling Information (17)].

Consider prescribing naloxone, based on the patient’s risk factors for overdose, such as concomitant use of CNS depressants, a history of opioid use disorder, or prior opioid overdose.

The presence of risk factors for overdose should not prevent the proper management of pain in any given patient.

Also consider prescribing naloxone if the patient has household members (including children) or other close contacts at risk for accidental ingestion or overdose.

If naloxone is prescribed, educate patients and caregivers on how to treat with naloxone.

[see Warnings and Precautions (5.1, 5.7), Patient Counseling Information (17)].

5.4 Ultra-Rapid Metabolism of Tramadol and Other Risk Factors for Life-threatening Respiratory Depression in Children Life-threatening respiratory depression and death have occurred in children who received tramadol.

Tramadol and codeine are subject to variability in metabolism based upon CYP2D6 genotype (described below), which can lead to increased exposure to an active metabolite.

Based upon postmarketing reports with tramadol or with codeine, children younger than 12 years of age may be more susceptible to the respiratory depressant effects of tramadol.

Furthermore, children with obstructive sleep apnea who are treated with opioids for post-tonsillectomy and/or adenoidectomy pain may be particularly sensitive to their respiratory depressant effect.

Because of the risk of life-threatening respiratory depression and death: Tramadol hydrochloride extended-release tablets are contraindicated for all children younger than 12 years of age [ see Contraindications (4) ].

Tramadol hydrochloride extended-release tablets are contraindicated for post-operative management in pediatric patients younger than 18 years of age following tonsillectomy and/or adenoidectomy [ see Contraindications (4) ].

Avoid the use of Tramadol hydrochloride extended-release tablets in adolescents 12 to 18 years of age who have other risk factors that may increase their sensitivity to the respiratory depressant effects of tramadol unless the benefits outweigh the risks.

Risk factors include conditions associated with hypoventilation, such as postoperative status, obstructive sleep apnea, obesity, severe pulmonary disease, neuromuscular disease, and concomitant use of other medications that cause respiratory depression.

As with adults, when prescribing opioids for adolescents, healthcare providers should choose the lowest effective dose for the shortest period of time and inform patients and caregivers about these risks and the signs of opioid overdose [ see Use in Specific Populations (8.4), Overdosage (10) ].

Nursing Mothers Tramadol is subject to the same polymorphic metabolism as codeine, with ultra-rapid metabolizers of CYP2D6 substrates being potentially exposed to life-threatening levels of O-desmethyltramadol (M1).

At least one death was reported in a nursing infant who was exposed to high levels of morphine in breast milk because the mother was an ultra-rapid metabolizer of codeine.

A baby nursing from an ultra-rapid metabolizer mother taking Tramadol hydrochloride extended-release tablets could potentially be exposed to high levels of M1, and experience life-threatening respiratory depression.

For this reason, breastfeeding is not recommended during treatment with Tramadol hydrochloride extended-release tablets [ see Use in Specific Populations (8.2) ].

CYP2D6 Genetic Variability: Ultra-rapid metabolizer Some individuals may be ultra-rapid metabolizers because of a specific CYP2D6 genotype (e.g., gene duplications denoted as *1/*1xN or *1/*2xN).

The prevalence of this CYP2D6 phenotype varies widely and has been estimated at 1 to 10% for Whites (European, North American), 3 to 4% for Blacks (African Americans), 1 to 2% for East Asians (Chinese, Japanese, Korean), and may be greater than 10% in certain racial/ethnic groups (i.e., Oceanian, Northern African, Middle Eastern, Ashkenazi Jews, Puerto Rican).

These individuals convert tramadol into its active metabolite, O-desmethyltramadol (M1), more rapidly and completely than other people.

This rapid conversion results in higher than expected serum M1 levels.

Even at labeled dosage regimens, individuals who are ultra-rapid metabolizers may have life-threatening or fatal respiratory depression or experience signs of overdose (such as extreme sleepiness, confusion, or shallow breathing) [see Overdosage (10)] .

Therefore, individuals who are ultra-rapid metabolizers should not use Tramadol hydrochloride extended-release tablets.

5.5 Neonatal Opioid Withdrawal Syndrome Prolonged use of tramadol hydrochloride extended-release tablets during pregnancy can result in withdrawal in the neonate.

Neonatal opioid withdrawal syndrome, unlike opioid withdrawal syndrome in adults, may be life- threatening if not recognized and treated, and requires management according to protocols developed by neonatology experts.

Observe newborns for signs of neonatal opioid withdrawal syndrome and manage accordingly.

Advise pregnant women using opioids for a prolonged period of the risk of neonatal opioid withdrawal syndrome and ensure that appropriate treatment will be available [see Use in Specific Populations (8.1), Patient Counseling Information (17)] .

5.6 Risks of Interactions with Drugs Affecting Cytochrome P450 Isoenzymes The effects of concomitant use or discontinuation of cytochrome P450 3A4 inducers, 3A4 inhibitors, or 2D6 inhibitors on levels of tramadol and M1 from tramadol hydrochloride extended-release tablets are complex.

Use of cytochrome P450 3A4 inducers, 3A4 inhibitors, or 2D6 inhibitors with tramadol hydrochloride extended-release tablets requires careful consideration of the effects on the parent drug, tramadol which is a weak serotonin and norepinephrine reuptake inhibitor and µ-opioid agonist, and the active metabolite, M1, which is more potent than tramadol in µ-opioid receptor binding [see Drug Interactions (7)] .

Risks of Concomitant Use or Discontinuation of Cytochrome P450 2D6 Inhibitors The concomitant use of tramadol hydrochloride extended-release tablets with all cytochrome P450 2D6 inhibitors (e.g., amiodarone, quinidine) may result in an increase in tramadol plasma levels and a decrease in the levels of the active metabolite, M1.

A decrease in M1 exposure in patients who have developed physical dependence to tramadol, may result in signs and symptoms of opioid withdrawal and reduced efficacy.

The effect of increased tramadol levels may be an increased risk for serious adverse events including seizures and serotonin syndrome.

Discontinuation of a concomitantly used cytochrome P450 2D6 inhibitor may result in a decrease in tramadol plasma levels and an increase in active metabolite M1 levels, which could increase or prolong adverse reactions related to opioid toxicity and may cause potentially fatal respiratory depression.

Follow patients receiving tramadol hydrochloride extended-release tablets and any CYP2D6 inhibitor for the risk of serious adverse events including seizures and serotonin syndrome, signs and symptoms that may reflect opioid toxicity, and opioid withdrawal when tramadol hydrochloride extended-release tablets are used in conjunction with inhibitors of CYP2D6 [see Drug Interactions (7)] .

Cytochrome P450 3A4 Interaction The concomitant use of tramadol hydrochloride extended-release tablets with cytochrome P450 3A4 inhibitors, such as macrolide antibiotics (e.g., erythromycin), azole-antifungal agents (e.g., ketoconazole), and protease inhibitors (e.g., ritonavir) or discontinuation of a cytochrome P450 3A4 inducer such as rifampin, carbamazepine, and phenytoin, may result in an increase in tramadol plasma concentrations, which could increase or prolong adverse reactions, increase the risk for serious adverse events including seizures and serotonin syndrome, and may cause potentially fatal respiratory depression.

The concomitant use of tramadol hydrochloride extended-release tablets with all cytochrome P450 3A4 inducers or discontinuation of a cytochrome P450 3A4 inhibitor may result in lower tramadol levels.

This may be associated with a decrease in efficacy, and in some patients, may result in signs and symptoms of opioid withdrawal.

Follow patients receiving tramadol hydrochloride extended-release tablets and any CYP3A4 inhibitor or inducer for the risk for serious adverse events including seizures and serotonin syndrome, signs and symptoms that may reflect opioid toxicity and opioid withdrawal when tramadol hydrochloride extended-release tablets are used in conjunction with inhibitors and inducers of CYP3A4 [see Drug Interactions (7)] .

5.7 Risks from Concomitant Use with Benzodiazepines or Other CNS Depressants Profound sedation, respiratory depression, coma, and death may result from the concomitant use of tramadol hydrochloride extended-release tablets with benzodiazepines or other CNS depressants (e.g., non-benzodiazepine sedatives/hypnotics, anxiolytics, tranquilizers, muscle relaxants, general anesthetics, antipsychotics, other opioids, alcohol).

Because of these risks, reserve concomitant prescribing of these drugs for use in patients for whom alternative treatment options are inadequate.

Observational studies have demonstrated that concomitant use of opioid analgesics and benzodiazepines increases the risk of drug-related mortality compared to use of opioid analgesics alone.

Because of similar pharmacological properties, it is reasonable to expect similar risk with the concomitant use of other CNS depressant drugs with opioid analgesics [see Drug Interactions (7)] .

If the decision is made to prescribe a benzodiazepine or other CNS depressant concomitantly with an opioid analgesic, prescribe the lowest effective dosages and minimum durations of concomitant use.

In patients already receiving an opioid analgesic, prescribe a lower initial dose of the benzodiazepine or other CNS depressant than indicated in the absence of an opioid, and titrate based on clinical response.

If an opioid analgesic is initiated in a patient already taking a benzodiazepine or other CNS depressant, prescribe a lower initial dose of the opioid analgesic, and titrate based on clinical response.

Follow patients closely for signs and symptoms of respiratory depression and sedation.

If concomitant use is warranted, consider prescribing naloxone for the emergency treatment of opioid overdose [see Dosage and Administration (2.2), Warnings and Precautions (5.3)].

Advise both patients and caregivers about the risks of respiratory depression and sedation when tramadol hydrochloride extended-release tablets are used with benzodiazepines or other CNS depressants (including alcohol and illicit drugs).

Advise patients not to drive or operate heavy machinery until the effects of concomitant use of the benzodiazepine or other CNS depressant have been determined.

Screen patients for risk of substance use disorders, including opioid abuse and misuse, and warn them of the risk for overdose and death associated with the use of additional CNS depressants including alcohol and illicit drugs [see Drug Interactions (7), Patient Counseling Information (17)] .

5.8 Serotonin Syndrome with Concomitant Use of Serotonergic Drugs Cases of serotonin syndrome, a potentially life-threatening condition, have been reported with the use of tramadol, including tramadol hydrochloride extended-release tablets, particularly during concomitant use with serotonergic drugs.

Serotonergic drugs include selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants (TCAs), triptans, 5-HT3 receptor antagonists, drugs that affect the serotonergic neurotransmitter system (e.g., mirtazapine, trazodone, tramadol), certain muscle relaxants (i.e., cyclobenzaprine, metaxalone), and drugs that impair metabolism of serotonin (including MAO inhibitors, both those intended to treat psychiatric disorders and also others, such as linezolid and intravenous methylene blue) [see Drug Interactions (7)] .

This may occur within the recommended dosage range.

Serotonin syndrome symptoms may include mental status changes (e.g., agitation, hallucinations, coma), autonomic instability (e.g., tachycardia, labile blood pressure, hyperthermia), neuromuscular aberrations (e.g., hyperreflexia, incoordination, rigidity), and/or gastrointestinal symptoms (e.g., nausea, vomiting, diarrhea).

The onset of symptoms generally occurs within several hours to a few days of concomitant use, but may occur later than that.

Discontinue tramadol hydrochloride extended-release tablets if serotonin syndrome is suspected.

5.9 Increased Risk of Seizures Seizures have been reported in patients receiving tramadol within the recommended dosage range.

Spontaneous post-marketing reports indicate that seizure risk is increased with doses of tramadol above the recommended range.

Concomitant use of tramadol increases the seizure risk in patients taking: [see Drug Interactions (7)] .

Selective serotonin re-uptake inhibitors (SSRIs) and Serotonin-norepinephrine re-uptake inhibitors (SNRIs) antidepressants or anorectics, Tricyclic antidepressants (TCAs), and other tricyclic compounds (e.g., cyclobenzaprine, promethazine, etc.), Other opioids, MAO inhibitors [see Warnings and Precautions (5.8), Drug Interactions (7)] Neuroleptics, or Other drugs that reduce the seizure threshold.

Risk of seizures may also increase in patients with epilepsy, those with a history of seizures, or in patients with a recognized risk for seizure (such as head trauma, metabolic disorders, alcohol and drug withdrawal, CNS infections).

In tramadol overdose, naloxone administration may increase the risk of seizure.

5.10 Suicide Risk Do not prescribe tramadol hydrochloride extended-release tablets for patients who are suicidal or addiction-prone.

Consideration should be given to the use of non-narcotic analgesics in patients who are suicidal or depressed.

[ see Drug Abuse and Dependence (9.2) ] Prescribe tramadol hydrochloride extended-release tablets with caution for patients with a history of misuse and/or are currently taking CNS-active drugs including tranquilizers, or antidepressant drugs, or alcohol in excess, and patients who suffer from emotional disturbance or depression [ see Drug Interactions (7) ].

Inform patients not to exceed the recommended dose and to limit their intake of alcohol [see Dosage and Administration (2.1), Warnings and Precautions (5.7, 5.8, 5.14)] .

5.11 Adrenal Insufficiency Cases of adrenal insufficiency have been reported with opioid use, more often following greater than one month of use.

Presentation of adrenal insufficiency may include non-specific symptoms and signs including nausea, vomiting, anorexia, fatigue, weakness, dizziness, and low blood pressure.

If adrenal insufficiency is suspected, confirm the diagnosis with diagnostic testing as soon as possible.

If adrenal insufficiency is diagnosed, treat with physiologic replacement doses of corticosteroids.

Wean the patient off of the opioid to allow adrenal function to recover and continue corticosteroid treatment until adrenal function recovers.

Other opioids may be tried as some cases reported use of a different opioid without recurrence of adrenal insufficiency.

The information available does not identify any particular opioids as being more likely to be associated with adrenal insufficiency.

5.12 Life-Threatening Respiratory Depression in Patients with Chronic Pulmonary Disease or in Elderly, Cachectic, or Debilitated Patients The use of tramadol hydrochloride extended-release tablets in patients with acute or severe bronchial asthma in an unmonitored setting or in the absence of resuscitative equipment is contraindicated.

Patients with Chronic Pulmonary Disease: Tramadol hydrochloride extended-release tablets-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with a substantially decreased respiratory reserve, hypoxia, hypercapnia, or pre-existing respiratory depression are at increased risk of decreased respiratory drive including apnea, even at recommended dosages of tramadol hydrochloride extended-release tablets [see Warnings and Precautions (5.3)].

Elderly, Cachectic, or Debilitated Patients: Life-threatening respiratory depression is more likely to occur in elderly, cachectic, or debilitated patients because they may have altered pharmacokinetics or altered clearance compared to younger, healthier patients [see Warnings and Precautions (5.3)].

Monitor such patients closely, particularly when initiating and titrating tramadol hydrochloride extended-release tablets and when tramadol hydrochloride extended-release tablets are given concomitantly with other drugs that depress respiration [see Warnings and Precautions (5.3, 5.7)] .

Alternatively, consider the use of non-opioid analgesics in these patients.

5.13 Severe Hypotension Tramadol hydrochloride extended-release tablets may cause severe hypotension including orthostatic hypotension and syncope in ambulatory patients.

There is increased risk in patients whose ability to maintain blood pressure has already been compromised by a reduced blood volume or concurrent administration of certain CNS depressant drugs (e.g., phenothiazines or general anesthetics) [see Drug Interactions (7)].

Monitor these patients for signs of hypotension after initiating or titrating the dosage of tramadol hydrochloride extended-release tablets.

In patients with circulatory shock, tramadol hydrochloride extended-release tablets may cause vasodilation that can further reduce cardiac output and blood pressure.

Avoid the use of tramadol hydrochloride extended-release tablets in patients with circulatory shock.

5.14 Risks of Use in Patients with Increased Intracranial Pressure, Brain Tumors, Head Injury, or Impaired Consciousness In patients who may be susceptible to the intracranial effects of CO 2 retention (e.g., those with evidence of increased intracranial pressure or brain tumors), tramadol hydrochloride extended-release tablets may reduce respiratory drive, and the resultant CO 2 retention can further increase intracranial pressure.

Monitor such patients for signs of sedation and respiratory depression, particularly when initiating therapy with tramadol hydrochloride extended-release tablets.

Opioids may also obscure the clinical course in a patient with a head injury.

Avoid the use of tramadol hydrochloride extended-release tablets in patients with impaired consciousness or coma.

5.15 Risks of Use in Patients with Gastrointestinal Conditions Tramadol hydrochloride extended-release tablets are contraindicated in patients with known or suspected gastrointestinal obstruction, including paralytic ileus.

The tramadol in tramadol hydrochloride extended-release tablets may cause spasm of the sphincter of Oddi.

Opioids may cause increases in serum amylase.

Monitor patients with biliary tract disease, including acute pancreatitis, for worsening symptoms.

5.16 Anaphylaxis and Other Hypersensitivity Reactions Serious and rarely fatal hypersensitive reactions have been reported in patients receiving therapy with tramadol.

When these events do occur it is often following the first dose.

Other reported hypersensitivity reactions include pruritus, hives, bronchospasm, angioedema, toxic epidermal necrolysis and Stevens-Johnson syndrome.

Patients with a history of hypersensitivity reactions to tramadol and other opioids may be at increased risk and therefore should not receive tramadol hydrochloride extended-release tablets.

If anaphylaxis or other hypersensitivity occurs, stop administration of tramadol hydrochloride extended-release tablets immediately, discontinue tramadol hydrochloride extended-release tablets permanently, and do not rechallenge with any formulation of tramadol.

Advise patients to seek immediate medical attention if they experience any symptoms of a hypersensitivity reaction [see Patient Counseling Information (17)] .

5.17 Withdrawal Do not abruptly discontinue tramadol hydrochloride extended-release tablets in a patient physically dependent on opioids.

When discontinuing tramadol hydrochloride extended-release tablets in a physically dependent patient, gradually taper the dosage.

Rapid tapering of tramadol hydrochloride extended-release tablets in a patient physically dependent on opioids may lead to a withdrawal syndrome and return of pain [see Dosage and Administration (2.5), Drug Abuse and Dependence (9)].

Additionally, avoid the use of mixed agonist/antagonist (e.g., pentazocine, nalbuphine, and butorphanol) or partial agonist (e.g., buprenorphine) analgesics in patients who are receiving a full opioid agonist analgesic, including tramadol hydrochloride extended-release tablets.

In these patients, mixed agonist/antagonist and partial agonist analgesics may reduce the analgesic effect and/or precipitate withdrawal symptoms [see Drug Interactions (7)].

5.18 Risks of Driving and Operating Machinery Tramadol hydrochloride extended-release tablets may impair the mental or physical abilities needed to perform potentially hazardous activities such as driving a car or operating machinery.

Warn patients not to drive or operate dangerous machinery unless they are tolerant to the effects of tramadol hydrochloride extended-release tablets and know how they will react to the medication [see Patient Counseling Information (17)].

5.19 Hyponatremia Hyponatremia (serum sodium < 135 mmol/L) has been reported with the use of tramadol, and many cases are severe (sodium level < 120 mmol/L).

Most cases of hyponatremia occurred in females over the age of 65 and within the first week of therapy.

In some reports, hyponatremia resulted from the syndrome of inappropriate antidiuretic hormone secretion (SIADH).

Monitor for signs and symptoms of hyponatremia (e.g., confusion, disorientation), during treatment with tramadol hydrochloride extended-release tablets, especially during initiation of therapy.

If signs and symptoms of hyponatremia are present, initiate appropriate treatment (e.g., fluid restriction) and discontinue tramadol hydrochloride extended-release tablets [see Dosage and Administration: Safe Reduction or Discontinuation of Tramadol Hydrochloride Extended-Release Tablets (2.5)].

5.20 Hypoglycemia Cases of tramadol-associated hypoglycemia have been reported, some resulting in hospitalization.

In most cases, patients had predisposing risk factors (e.g.

diabetes).

If hypoglycemia is suspected, monitor blood glucose levels and consider drug discontinuation as appropriate [see Dosage and Administration: Safe Reduction or Discontinuation of Tramadol Hydrochloride Extended-Release Tablets (2.5)].

INFORMATION FOR PATIENTS

17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Medication Guide).

Storage and Disposal Because of the risks associated with accidental ingestion, misuse, and abuse, advise patients to store tramadol hydrochloride extended-release tablets securely, out of sight and reach of children, and in a location not accessible by others, including visitors to the home [see Warnings and Precautions (5.1), Drug Abuse And Dependence (9.3)] .

Inform patients that leaving tramadol hydrochloride extended-release tablets unsecured can pose a deadly risk to others in the home.

Advise patients and caregivers that when medicines are no longer needed, they should be disposed of promptly.

Inform patients that medicine take-back options are the preferred way to safely dispose of most types of unneeded medicines.

If no take back programs or DEA-registered collectors are available, instruct patients to dispose of tramadol hydrochloride extended-release tablets by following these four steps: Mix tramadol hydrochloride extended-release tablets (do not crush) with an unpalatable substance such as dirt, cat litter, or used coffee grounds; Place the mixture in a container such as a sealed plastic bag; Throw the container in the household trash; Delete all personal information on the prescription label of the empty bottle Inform patients that they can visit www.fda.gov/drugdisposa l for additional information on disposal of unused medicines.

Addiction, Abuse, and Misuse Inform patients that the use of tramadol hydrochloride extended-release tablets, even when taken as recommended, can result in addiction, abuse, and misuse, which can lead to overdose and death [see Warnings and Precautions (5.1)].

Instruct patients not to share tramadol hydrochloride extended-release tablets with others and to take steps to protect tramadol hydrochloride extended-release tablets from theft or misuse.

Life-Threatening Respiratory Depression Inform patients of the risk of life-threatening respiratory depression, including information that the risk is greatest when starting tramadol hydrochloride extended-release tablets or when the dosage is increased, and that it can occur even at recommended dosages.

Educate patients and caregivers on how to recognize respiratory depression and emphasize the importance of calling 911 or getting emergency medical help right away in the event of a known or suspected overdose [see Warnings and Precautions (5.3)] .

Patient Access to Naloxone for the Emergency Treatment of Opioid Overdose Discuss with the patient and caregiver the availability of naloxone for the emergency treatment of opioid overdose, both when initiating and renewing treatment with tramadol hydrochloride extended-release tablets.

Inform patients and caregivers about the various ways to obtain naloxone as permitted by individual state naloxone dispensing and prescribing requirements or guidelines (e.g., by prescription, directly from a pharmacist, or as part of a community-based program) [see Dosage and Administration ((2.2), Warnings and Precautions (5.3)].

Educate patients and caregivers on how to recognize the signs and symptoms of an overdose.

Explain to patients and caregivers that naloxone’s effects are temporary, and that they must call 911 or get emergency medical help right away in all cases of known or suspected opioid overdose, even if naloxone is administered [ see Overdosage (10)].

If naloxone is prescribed, also advise patients and caregivers: How to treat with naloxone in the event of an opioid overdose To tell family and friends about their naloxone and to keep it in a place where family and friends can access it in an emergency To read the Patient Information (or other educational material) that will come with their naloxone.

Emphasize the importance of doing this before an opioid emergency happens, so the patient and caregiver will know what to do.

Accidental Ingestion Inform patients that accidental ingestion, especially by children, may result in respiratory depression or death [see Warnings and Precautions (5.3)] .

Ultra-Rapid Metabolism of Tramadol and Other Risk Factors for Life-threatening Respiratory Depression in Children Advise caregivers that tramadol hydrochloride extended-release tablets are contraindicated in children younger than 12 years of age and in children younger than 18 years of age following tonsillectomy and/or adenoidectomy.

Advise caregivers of children 12 to 18 years of age receiving tramadol hydrochloride extended-release tablets to monitor for signs of respiratory depression [see Warnings and Precautions (5.4)] .

Interactions with Benzodiazepines and Other CNS Depressants Inform patients and caregivers that potentially fatal additive effects may occur if tramadol hydrochloride extended-release tablets are used with benzodiazepines or other CNS depressants, including alcohol, and not to use these concomitantly unless supervised by a healthcare provider [see Warnings and Precautions (5.7), Drug Interactions (7)].

Serotonin Syndrome Inform patients that tramadol could cause a rare but potentially life-threatening condition, particularly during concomitant use with serotonergic drugs.

Warn patients of the symptoms of serotonin syndrome and to seek medical attention right away if symptoms develop.

Instruct patients to inform their healthcare provider if they are taking, or plan to take serotonergic medications [see Warnings and Precautions (5.8), Drug Interactions (7)] .

Seizures Inform patients that tramadol hydrochloride extended-release tablets may cause seizures with concomitant use of serotonergic agents (including SSRIs, SNRIs, and triptans) or drugs that significantly reduce the metabolic clearance of tramadol [see Warnings and Precautions (5.9)] .

MAOI Interaction Inform patients not to take tramadol hydrochloride extended-release tablets while using any drugs that inhibit monoamine oxidase.

Patients should not start MAOIs while taking tramadol hydrochloride extended-release tablets [see Drug Interactions (7)].

Adrenal Insufficiency Inform patients that opioids could cause adrenal insufficiency, a potentially life-threatening condition.

Adrenal insufficiency may present with non-specific symptoms and signs such as nausea, vomiting, anorexia, fatigue, weakness, dizziness, and low blood pressure.

Advise patients to seek medical attention if they experience a constellation of these symptoms [see Warnings and Precautions (5.11)] .

Important Administration Instructions Instruct patients how to properly take tramadol hydrochloride extended-release tablets, including the following: Tramadol hydrochloride extended-release tablets are designed to work properly only if swallowed intact.

Taking cut, broken, chewed, crushed, or dissolved tramadol hydrochloride extended-release tablets can result in a fatal overdose [see Dosage and Administration (2.1)].

Advise patients not to exceed the single-dose and 24-hour dose limit and the time interval between doses, since exceeding these recommendations can result in respiratory depression, seizures, hepatic toxicity, and death.

[see Dosage and Administration (2.1)].

Do not discontinue tramadol hydrochloride extended-release tablets without first discussing the need for a tapering regimen with the prescriber [see Dosage and Administration (2.5)] .

Important Discontinuation Instructions In order to avoid developing withdrawal symptoms, instruct patients not to discontinue tramadol hydrochloride extended-release tablets without first discussing a tapering plan with the prescriber [see Dosage and Administration (2.5) ].

Hypotension Inform patients that tramadol hydrochloride extended-release tablets may cause orthostatic hypotension and syncope.

Instruct patients how to recognize symptoms of low blood pressure and how to reduce the risk of serious consequences should hypotension occur (e.g., sit or lie down, carefully rise from a sitting or lying position) [see Warnings and Precautions (5.13)] .

Anaphylaxis Inform patients that anaphylaxis has been reported with ingredients contained in tramadol hydrochloride extended-release tablets.

Advise patients how to recognize such a reaction and when to seek medical attention [see Contraindications (4), Warnings and Precautions (5.16), Adverse Reactions (6)].

Pregnancy Neonatal Opioid Withdrawal Syndrome Inform female patients of reproductive potential that prolonged use of tramadol hydrochloride extended-release tablets during pregnancy can result in neonatal opioid withdrawal syndrome, which may be life-threatening if not recognized and treated [see Warnings and Precautions (5.5), Use in Specific Populations (8.1)].

Embryo-Fetal Toxicity Inform female patients of reproductive potential that tramadol hydrochloride extended-release tablets can cause fetal harm and to inform their healthcare provider of a known or suspected pregnancy [see Use in Specific Populations (8.1)].

Lactation Advise women that breastfeeding is not recommended during treatment with tramadol hydrochloride extended-release tablets [see Use in Specific Populations (8.2)].

Infertility Inform patients that chronic use of opioids may cause reduced fertility.

It is not known whether these effects on fertility are reversible [see Adverse Reactions (6.2), Use in Specific Populations (8.3)].

Driving or Operating Heavy Machinery Inform patients that tramadol hydrochloride extended-release tablets may impair the ability to perform potentially hazardous activities such as driving a car or operating heavy machinery.

Advise patients not to perform such tasks until they know how they will react to the medication [see Warnings and Precautions (5.18)] .

Constipation Advise patients of the potential for severe constipation, including management instructions and when to seek medical attention [see Adverse Reactions (6), Clinical Pharmacology (12.1)].

DOSAGE AND ADMINISTRATION

2 To be prescribed only by healthcare providers knowledgeable in use of potent opioids for management of chronic pain.

( 2.1 ) Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals ( 2.1 ).

Individualize dosing based on the severity of pain, patient response, prior analgesic experience, and risk factors for addiction, abuse, and misuse.

( 2.1 ) Do not exceed a daily dose of 300 mg tramadol.

Do not use with other tramadol products.

( 2.1 ) Discuss availability of naloxone with the patient and caregiver and assess each patient’s need for access to naloxone, both when initiating and renewing treatment with tramadol hydrochloride extended-release tablets.

Consider prescribing naloxone based on the patient’s risk factors for overdose ( 2.2 , 5.1 , 5.3 , 5.7 ).

For opioid-naïve and opioid non-tolerant patients, initiate tramadol hydrochloride extended-release tablets at a dose of 100 mg once daily, then titrate up by 100 mg increments every 5 days according to need and tolerance.

( 2.3 ) For patients currently on tramadol IR, calculate total 24-hr IR dose, and initiate tramadol hydrochloride extended-release tablets at a dose rounded down to next lower 100 mg increment; then adjust dose according to need and tolerance.

See full prescribing information for instructions on conversion, titration, and maintenance of therapy.

( 2.3 , 2.4 ) Do not abruptly discontinue tramadol hydrochloride extended-release tablets in a physically-dependent patient.

( 2.5 ) 2.1 Important Dosage and Administration Instructions Tramadol hydrochloride extended-release tablets should be prescribed only by healthcare professionals who are knowledgeable in the use of potent opioids for the management of chronic pain.

Do not use tramadol hydrochloride extended-release tablets concomitantly with other tramadol products [ see Warnings and Precautions (5.6), (5.14) ].

Do not administer tramadol hydrochloride extended-release tablets at a dose exceeding 300 mg per day.

Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals [ see Warnings and Precautions (5.7) ].

Initiate the dosing regimen for each patient individually, taking into account the patient’s severity of pain, patient response, prior analgesic treatment experience, and risk factors for addiction, abuse, and misuse [ see Warnings and Precautions (5.1) ] Monitor patients closely for respiratory depression, especially within the first 24-72 hours of initiating therapy and following dosage increases with tramadol hydrochloride extended-release tablets and adjust the dosage accordingly [ see Warnings and Precautions (5.3) ].

Instruct patients to swallow tramadol hydrochloride extended-release tablets whole [see Patient Counseling Information (17)], and to take it with liquid.

Crushing, chewing, splitting, or dissolving tramadol hydrochloride extended-release tablets will result in uncontrolled delivery of tramadol and can lead to overdose or death [ see Warnings and Precautions (5.1) ].

Tramadol hydrochloride extended-release tablets may be taken without regard to food, It is recommended that tramadol hydrochloride extended-release tablets be taken in a consistent manner [ see Clinical Pharmacology (12.3) ].

2.2 Patient Access to Naloxone for the Emergency Treatment of Opioid Overdose Discuss the availability of naloxone for the emergency treatment of opioid overdose with the patient and caregiver and assess the potential need for access to naloxone, both when initiating and renewing treatment with tramadol hydrochloride extended-release tablets [see Warnings and Precautions (5.3), Patient Counseling Information (17)].

Inform patients and caregivers about the various ways to obtain naloxone as permitted by individual state naloxone dispensing and prescribing requirements or guidelines (e.g., by prescription, directly from a pharmacist, or as part of a community-based program).

Consider prescribing naloxone, based on the patient’s risk factors for overdose, such as concomitant use of CNS depressants, a history of opioid use disorder, or prior opioid overdose.

The presence of risk factors for overdose should not prevent the proper management of pain in any given patient [see Warnings and Precautions (5.1, 5.3, 5.7)].

Consider prescribing naloxone if the patient has household members (including children) or other close contacts at risk for accidental ingestion or overdose.

2.3 Initial Dosage Patients Not Currently on a Tramadol Product The initial dose of tramadol hydrochloride extended-release tablet is 100 mg once daily.

Patients Currently on Tramadol Immediate-Release (IR) Products Calculate the 24-hour tramadol IR dose and initiate a total daily dose of tramadol hydrochloride extended-release tablets rounded down to the next lower 100 mg increment.

The dose may subsequently be individualized according to patient need.

Due to limitations in flexibility of dose selection with tramadol hydrochloride extended-release tablets, some patients maintained on tramadol IR products may not be able to convert to tramadol hydrochloride extended-release tablets.

Conversion from Other Opioids to Tramadol Hydrochloride Extended-Release Tablets Discontinue all other around-the-clock opioid drugs when tramadol hydrochloride extended-release tablets therapy is initiated.

There are no established conversion ratios for conversion from other opioids to tramadol hydrochloride extended-release tablets defined by clinical trials.

Initiate dosing using tramadol hydrochloride extended-release tablet 100 mg once a day.

2.4 Titration and Maintenance of Therapy Individually titrate tramadol hydrochloride extended-release tablets by 100 mg every five days to a dose that provides adequate analgesia and minimizes adverse reactions.

The maximum daily dose of tramadol hydrochloride extended-release tablets is 300 mg per day.

Continually reevaluate patients receiving tramadol hydrochloride extended-release tablets to assess the maintenance of pain control and the relative incidence of adverse reactions, as well as monitoring for the development of addiction, abuse, or misuse [see Warnings and Precautions (5.1)] .

Frequent communication is important among the prescriber, other members of the healthcare team, the patient, and the caregiver/family during periods of changing analgesic requirements, including initial titration.

During chronic therapy, periodically reassess the continued need for the use of opioid analgesics.

Patients who experience breakthrough pain may require a dosage adjustment of tramadol hydrochloride extended-release tablets, or may need rescue medication with an appropriate dose of an immediate-release analgesic.

If the level of pain increases after dosage stabilization, attempt to identify the source of increased pain before increasing the tramadol hydrochloride extended-release tablets dosage.

If unacceptable opioid-related adverse reactions are observed, consider reducing the dosage.

Adjust the dosage to obtain an appropriate balance between management of pain and opioid-related adverse reactions.

2.5 Safe Reduction or Discontinuation of Tramadol Hydrochloride Extended-Release Tablets Do not abruptly discontinue tramadol hydrochloride extended-release tablets in patients who may be physically dependent on opioids.

Rapid discontinuation of opioid analgesics in patients who are physically dependent on opioids has resulted in serious withdrawal symptoms, uncontrolled pain, and suicide.

Rapid discontinuation has also been associated with attempts to find other sources of opioid analgesics, which may be confused with drug-seeking for abuse.

Patients may also attempt to treat their pain or withdrawal symptoms with illicit opioids, such as heroin, and other substances.

When a decision has been made to decrease the dose or discontinue therapy in an opioid-dependent patient taking tramadol hydrochloride extended-release tablets, there are a variety of factors that should be considered, including the dose of tramadol hydrochloride extended-release tablets the patient has been taking, the duration of treatment, the type of pain being treated, and the physical and psychological attributes of the patient.

It is important to ensure ongoing care of the patient and to agree on an appropriate tapering schedule and follow-up plan so that patient and provider goals and expectations are clear and realistic.

When opioid analgesics are being discontinued due to a suspected substance use disorder, evaluate and treat the patient, or refer for evaluation and treatment of the substance use disorder.

Treatment should include evidence-based approaches, such as medication assisted treatment of opioid use disorder.

Complex patients with co-morbid pain and substance use disorders may benefit from referral to a specialist.

There are no standard opioid tapering schedules that are suitable for all patients.

Good clinical practice dictates a patient-specific plan to taper the dose of the opioid gradually.

For patients on tramadol hydrochloride extended-release tablets who are physically opioid-dependent, initiate the taper by a small enough increment (e.g., no greater than 10% to 25% of the total daily dose) to avoid withdrawal symptoms, and proceed with dose-lowering at an interval of every 2 to 4 weeks.

Patients who have been taking opioids for briefer periods of time may tolerate a more rapid taper.

It may be necessary to provide the patient with lower dosage strengths to accomplish a successful taper.

Reassess the patient frequently to manage pain and withdrawal symptoms, should they emerge.

Common withdrawal symptoms include restlessness, lacrimation, rhinorrhea, yawning, perspiration, chills, myalgia, and mydriasis.

Other signs and symptoms also may develop, including irritability, anxiety, backache, joint pain, weakness, abdominal cramps, insomnia, nausea, anorexia, vomiting, diarrhea, or increased blood pressure, respiratory rate, or heart rate.

If withdrawal symptoms arise, it may be necessary to pause the taper for a period of time or raise the dose of the opioid analgesic to the previous dose, and then proceed with a slower taper.

In addition, monitor patients for any changes in mood, emergence of suicidal thoughts, or use of other substances.

When managing patients taking opioid analgesics, particularly those who have been treated for a long duration and/or with high doses for chronic pain, ensure that a multimodal approach to pain management, including mental health support (if needed), is in place prior to initiating an opioid analgesic taper.

A multimodal approach to pain management may optimize the treatment of chronic pain, as well as assist with the successful tapering of the opioid analgesic [see Warnings and Precautions (5.17), Drug Abuse and Dependence (9.3) ].

Eszopiclone 3 MG Oral Tablet [Lunesta]

WARNINGS

: Because sleep disturbances may be the presenting manifestation of a physical and/or psychiatric disorder, symptomatic treatment of insomnia should be initiated only after a careful evaluation of the patient.

The failure of insomnia to remit after 7 to 10 days of treatment may indicate the presence of a primary psychiatric and/or medical illness that should be evaluated.

Worsening of insomnia or the emergence of new thinking or behavior abnormalities may be the consequence of an unrecognized psychiatric or physical disorder.

Such findings have emerged during the course of treatment with sedative/hypnotic drugs, including LUNESTA.

Because some of the important adverse effects of LUNESTA appear to be dose-related, it is important to use the lowest possible effective dose, especially in the elderly (see DOSAGE AND ADMINISTRATION ).

A variety of abnormal thinking and behavior changes have been reported to occur in association with the use of sedative/hypnotics.

Some of these changes may be characterized by decreased inhibition (e.g., aggressiveness and extroversion that seem out of character), similar to effects produced by alcohol and other CNS depressants.

Other reported behavioral changes have included bizarre behavior, agitation, hallucinations, and depersonalization.

Complex behaviors such as “sleep-driving” (i.e., driving while not fully awake after ingestion of a sedative-hypnotic, with amnesia for the event) have been reported.

These events can occur in sedative-hypnotic-naïve as well as in sedative-hypnotic-experienced persons.

Although behaviors such as sleep-driving may occur with LUNESTA alone at therapeutic doses, the use of alcohol and other CNS depressants with LUNESTA appears to increase the risk of such behaviors, as does the use of LUNESTA at doses exceeding the maximum recommended dose.

Due to the risk to the patient and the community, discontinuation of LUNESTA should be strongly considered for patients who report a “sleep-driving” episode.

Other complex behaviors (e.g., preparing and eating food, making phone calls, or having sex) have been reported in patients who are not fully awake after taking a sedative-hypnotic.

As with sleep-driving, patients usually do not remember these events.

Amnesia and other neuropsychiatric symptoms may occur unpredictably.

In primarily depressed patients, worsening of depression, including suicidal thoughts and actions (including completed suicides), have been reported in association with the use of sedative/hypnotics.

It can rarely be determined with certainty whether a particular instance of the abnormal behaviors listed above are drug-induced, spontaneous in origin, or a result of an underlying psychiatric or physical disorder.

Nonetheless, the emergence of any new behavioral sign or symptom of concern requires careful and immediate evaluation.

Following rapid dose decrease or abrupt discontinuation of the use of sedative/hypnotics, there have been reports of signs and symptoms similar to those associated with withdrawal from other CNS-depressant drugs (see DRUG ABUSE AND DEPENDENCE ).

LUNESTA, like other hypnotics, has CNS-depressant effects.

Because of the rapid onset of action, LUNESTA should only be ingested immediately prior to going to bed or after the patient has gone to bed and has experienced difficulty falling asleep.

Patients receiving LUNESTA should be cautioned against engaging in hazardous occupations requiring complete mental alertness or motor coordination (e.g., operating machinery or driving a motor vehicle) after ingesting the drug, and be cautioned about potential impairment of the performance of such activities on the day following ingestion of LUNESTA.

LUNESTA, like other hypnotics, may produce additive CNS-depressant effects when coadministered with other psychotropic medications, anticonvulsants, antihistamines, ethanol, and other drugs that themselves produce CNS depression.

LUNESTA should not be taken with alcohol.

Dose adjustment may be necessary when LUNESTA is administered with other CNS-depressant agents, because of the potentially additive effects.

Severe anaphylactic and anaphylactoid reactions Rare cases of angioedema involving the tongue, glottis or larynx have been reported in patients after taking the first or subsequent doses of sedative-hypnotics, including LUNESTA.

Some patients have had additional symptoms such as dyspnea, throat closing, or nausea and vomiting that suggest anaphylaxis.

Some patients have required medical therapy in the emergency department.

If angioedema involves the tongue, glottis or larynx, airway obstruction may occur and be fatal.

Patients who develop angioedema after treatment with LUNESTA should not be rechallenged with the drug.

DRUG INTERACTIONS

Drug Interactions CNS-Active Drugs Ethanol: An additive effect on psychomotor performance was seen with coadministration of eszopiclone and ethanol 0.70 g/kg for up to 4 hours after ethanol administration.

Paroxetine: Coadministration of single doses of eszopiclone 3 mg and paroxetine 20 mg daily for 7 days produced no pharmacokinetic or pharmacodynamic interaction.

Lorazepam: Coadministration of single doses of eszopiclone 3 mg and lorazepam 2 mg did not have clinically relevant effects on the pharmacodynamics or pharmacokinetics of either drug.

Olanzapine: Coadministration of eszopiclone 3 mg and olanzapine 10 mg produced a decrease in DSST scores.

The interaction was pharmacodynamic; there was no alteration in the pharmacokinetics of either drug.

Drugs That Inhibit CYP3A4 (Ketoconazole) CYP3A4 is a major metabolic pathway for elimination of eszopiclone.

The AUC of eszopiclone was increased 2.2-fold by coadministration of ketoconazole, a potent inhibitor of CYP3A4, 400 mg daily for 5 days.

C max and t 1/2 were increased 1.4-fold and 1.3-fold, respectively.

Other strong inhibitors of CYP3A4 (e.g., itraconazole, clarithromycin, nefazodone, troleandomycin, ritonavir, nelfinavir) would be expected to behave similarly.

Drugs That Induce CYP3A4 (Rifampicin) Racemic zopiclone exposure was decreased 80% by concomitant use of rifampicin, a potent inducer of CYP3A4.

A similar effect would be expected with eszopiclone.

Drugs Highly Bound To Plasma Protein Eszopiclone is not highly bound to plasma proteins (52-59% bound); therefore, the disposition of eszopiclone is not expected to be sensitive to alterations in protein binding.

Administration of eszopiclone 3 mg to a patient taking another drug that is highly protein-bound would not be expected to cause an alteration in the free concentration of either drug.

Drugs With A Narrow Therapeutic Index Digoxin: A single dose of eszopiclone 3 mg did not affect the pharmacokinetics of digoxin measured at steady state following dosing of 0.5 mg twice daily for one day and 0.25 mg daily for the next 6 days.

Warfarin: Eszopiclone 3 mg administered daily for 5 days did not affect the pharmacokinetics of ( R )- or ( S )-warfarin, nor were there any changes in the pharmacodynamic profile (prothrombin time) following a single 25 mg oral dose of warfarin.

OVERDOSAGE

: There is limited premarketing clinical experience with the effects of an overdosage of LUNESTA.

In clinical trials with eszopiclone, one case of overdose with up to 36 mg of eszopiclone was reported in which the subject fully recovered.

Individuals have fully recovered from racemic zopiclone overdoses up to 340 mg (56 times the maximum recommended dose of eszopiclone).

Signs And Symptoms Signs and symptoms of overdose effects of CNS depressants can be expected to present as exaggerations of the pharmacological effects noted in preclinical testing.

Impairment of consciousness ranging from somnolence to coma has been described.

Rare individual instances of fatal outcomes following overdose with racemic zopiclone have been reported in European postmarketing reports, most often associated with overdose with other CNS-depressant agents.

Recommended Treatment General symptomatic and supportive measures should be used along with immediate gastric lavage where appropriate.

Intravenous fluids should be administered as needed.

Flumazenil may be useful.

As in all cases of drug overdose, respiration, pulse, blood pressure, and other appropriate signs should be monitored and general supportive measures employed.

Hypotension and CNS depression should be monitored and treated by appropriate medical intervention.

The value of dialysis in the treatment of overdosage has not been determined.

Poison Control Center As with the management of all overdosage, the possibility of multiple drug ingestion should be considered.

The physician may wish to consider contacting a poison control center for up-to-date information on the management of hypnotic drug product overdosage.

DESCRIPTION

: LUNESTA (eszopiclone) is a nonbenzodiazepine hypnotic agent that is a pyrrolopyrazine derivative of the cyclopyrrolone class.

The chemical name of eszopiclone is (+)-(5S)-6-(5-chloropyridin-2-yl)-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b] pyrazin-5-yl 4-methylpiperazine-1-carboxylate.

Its molecular weight is 388.81, and its empirical formula is C 17 H 17 ClN 6 O 3 .

Eszopiclone has a single chiral center with an ( S )-configuration.

It has the following chemical structure: Eszopiclone is a white to light-yellow crystalline solid.

Eszopiclone is very slightly soluble in water, slightly soluble in ethanol, and soluble in phosphate buffer (pH 3.2).

Eszopiclone is formulated as film-coated tablets for oral administration.

LUNESTA tablets contain 1 mg, 2 mg, or 3 mg eszopiclone and the following inactive ingredients: calcium phosphate, colloidal silicon dioxide, croscarmellose sodium, hypromellose, lactose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, titanium dioxide, and triacetin.

In addition, both the 1 mg and 3 mg tablets contain FD&C Blue #2.

Chemical Structure

HOW SUPPLIED

: LUNESTA 3 mg tablets are round, dark blue, film-coated, and identified with debossed markings of S193 on one side, and are supplied as: NDC 63402-193-10 bottle of 100 tablets LUNESTA 2 mg tablets are round, white, film-coated, and identified with debossed markings of S191 on one side, and are supplied as: NDC 63402-191-10 bottle of 100 tablets LUNESTA 1 mg tablets are round, light blue, film-coated, and identified with debossed markings of S190 on one side, and are supplied as: NDC 63402-190-30 bottle of 30 tablets Store at 25°C (77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature].

SUNOVION Manufactured for: Sunovion Pharmaceuticals Inc.

Marlborough, MA 01752 USA For customer service, call 1-888-394-7377.

To report adverse events, call 1-877-737-7226.

For medical information, call 1-800-739-0565.

© 2009, 2010 Sunovion Pharmaceuticals Inc.

All rights reserved.

Lunesta is a registered trademark of Sunovion Pharmaceuticals Inc.

GERIATRIC USE

Geriatric Use A total of 287 subjects in double-blind, parallel-group, placebo-controlled clinical trials who received eszopiclone were 65 to 86 years of age.

The overall pattern of adverse events for elderly subjects (median age = 71 years) in 2-week studies with nighttime dosing of 2 mg eszopiclone was not different from that seen in younger adults (see ADVERSE REACTIONS , Table 2 ).

LUNESTA 2 mg exhibited significant reduction in sleep latency and improvement in sleep maintenance in the elderly population.

INDICATIONS AND USAGE

: LUNESTA is indicated for the treatment of insomnia.

In controlled outpatient and sleep laboratory studies, LUNESTA administered at bedtime decreased sleep latency and improved sleep maintenance.

The clinical trials performed in support of efficacy were up to 6 months in duration.

The final formal assessments of sleep latency and maintenance were performed at 4 weeks in the 6-week study (adults only), at the end of both 2-week studies (elderly only) and at the end of the 6-month study (adults only).

PEDIATRIC USE

Pediatric Use Safety and effectiveness of eszopiclone in children below the age of 18 have not been established.

PREGNANCY

Pregnancy Pregnancy Category C Eszopiclone administered by oral gavage to pregnant rats and rabbits during the period of organogenesis showed no evidence of teratogenicity up to the highest doses tested (250 and 16 mg/kg/day in rats and rabbits, respectively; these doses are 800 and 100 times, respectively, the maximum recommended human dose [MRHD] on a mg/m 2 basis).

In the rat, slight reductions in fetal weight and evidence of developmental delay were seen at maternally toxic doses of 125 and 150 mg/kg/day, but not at 62.5 mg/kg/day (200 times the MRHD on a mg/m 2 basis).

Eszopiclone was also administered by oral gavage to pregnant rats throughout the pregnancy and lactation periods at doses of up to 180 mg/kg/day.

Increased post-implantation loss, decreased postnatal pup weights and survival, and increased pup startle response were seen at all doses; the lowest dose tested, 60 mg/kg/day, is 200 times the MRHD on a mg/m 2 basis.

These doses did not produce significant maternal toxicity.

Eszopiclone had no effects on other behavioral measures or reproductive function in the offspring.

There are no adequate and well-controlled studies of eszopiclone in pregnant women.

Eszopiclone should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

NUSRING MOTHERS

Nursing Mothers It is not known whether LUNESTA is excreted in human milk.

Because many drugs are excreted in human milk, caution should be exercised when LUNESTA is administered to a nursing woman.

INFORMATION FOR PATIENTS

Information For Patients Patients should be instructed to read the accompanying Medication Guide with each new prescription and refill.

The complete text of the Medication Guide is reprinted at the end of this document.

Patients should be given the following information: Patients should be instructed to take LUNESTA immediately prior to going to bed, and only if they can dedicate 8 hours to sleep.

Patients should be instructed not to take LUNESTA with alcohol or with other sedating medications.

Patients should be advised to consult with their physician if they have a history of depression, mental illness, or suicidal thoughts, have a history of drug or alcohol abuse, or have liver disease.

Women should be advised to contact their physician if they become pregnant, plan to become pregnant, or if they are nursing.

DOSAGE AND ADMINISTRATION

: The dose of LUNESTA should be individualized.

The recommended starting dose for LUNESTA for most non-elderly adults is 2 mg immediately before bedtime.

Dosing can be initiated at or raised to 3 mg if clinically indicated, since 3 mg is more effective for sleep maintenance (see PRECAUTIONS ).

The recommended starting dose of LUNESTA for elderly patients whose primary complaint is difficulty falling asleep is 1 mg immediately before bedtime.

In these patients, the dose may be increased to 2 mg if clinically indicated.

For elderly patients whose primary complaint is difficulty staying asleep, the recommended dose is 2 mg immediately before bedtime (see PRECAUTIONS ).

Taking LUNESTA with or immediately after a heavy, high-fat meal results in slower absorption and would be expected to reduce the effect of LUNESTA on sleep latency (see Pharmacokinetics under CLINICAL PHARMACOLOGY ).

Special Populations Hepatic The starting dose of LUNESTA should be 1 mg in patients with severe hepatic impairment.

LUNESTA should be used with caution in these patients.

Coadministration With CYP3A4 Inhibitors The starting dose of LUNESTA should not exceed 1 mg in patients coadministered LUNESTA with potent CYP3A4 inhibitors.

If needed, the dose can be raised to 2 mg.

BENGAY Original 10 % / 15 % Topical Cream

WARNINGS

Warnings For external use only.

Do not use on wounds or damaged skin with a heating pad on a child under 12 years of age with arthritis-like conditions Ask a doctor before use if you have redness over the affected area.

When using this product avoid contact with eyes or mucous membranes do not bandage tightly Stop use and ask a doctor if condition worsens or symptoms persist for more than 7 days symptoms clear up and occur again within a few days excessive skin irritation occurs Keep out of reach of children to avoid accidental ingestion.

If swallowed, get medical help or contact a Poison Control Center immediately.

INDICATIONS AND USAGE

Uses temporarily relieves the minor aches and pains of muscles and joints associated with: simple backache arthritis strains bruises sprains

INACTIVE INGREDIENTS

Inactive ingredients cetyl alcohol, glycerin, glyceryl stearate, isopropyl palmitate, methylparaben, phenoxyethanol, potassium cetyl phosphate, potassium hydroxide, propylparaben, stearic acid, water, xanthan gum

PURPOSE

Active ingredients Purpose Menthol 10% Topical analgesic Methyl salicylate 15% Topical analgesic

KEEP OUT OF REACH OF CHILDREN

Keep out of reach of children to avoid accidental ingestion.

If swallowed, get medical help or contact a Poison Control Center immediately.

ASK DOCTOR

Ask a doctor before use if you have redness over the affected area.

DOSAGE AND ADMINISTRATION

Directions use only as directed adults and children 12 years of age and older: apply to affected area not more than 3 to 4 times daily children under 12 years of age: ask a doctor

DO NOT USE

Do not use on wounds or damaged skin with a heating pad on a child under 12 years of age with arthritis-like conditions

STOP USE

Stop use and ask a doctor if condition worsens or symptoms persist for more than 7 days symptoms clear up and occur again within a few days excessive skin irritation occurs

ACTIVE INGREDIENTS

Active ingredients Purpose Menthol 10% Topical analgesic Methyl salicylate 15% Topical analgesic

escitalopram (as escitalopram oxalate) 5 MG Oral Tablet

Generic Name: ESCITALOPRAM OXALATE
Brand Name: escitalopram oxalate
  • Substance Name(s):
  • ESCITALOPRAM OXALATE

DRUG INTERACTIONS

7 Concomitant use with SSRIs, SNRIs or Tryptophan is not recommended ( 7.2 ).

Use caution when concomitant use with drugs that affect Hemostasis (NSAIDs, Aspirin, Warfarin) ( 7.6 ).

7.1 Monoamine Oxidase Inhibitors (MAOIs) [See Dosage and Administration ( 2.5 and 2.6 ), Contraindications ( 4.1 ) and Warnings and Precautions ( 5.2 )] .

7.2 Serotonergic Drugs [See Dosage and Administration ( 2.5 and 2.6 ), Contraindications ( 4.1 ) and Warnings and Precautions ( 5.2 )] .

7.3 Triptans There have been rare postmarketing reports of serotonin syndrome with use of an SSRI and a triptan.

If concomitant treatment of escitalopram with a triptan is clinically warranted, careful observation of the patient is advised, particularly during treatment initiation and dose increases [see Warnings and Precautions ( 5.2 )] .

7.4 CNS Drugs Given the primary CNS effects of escitalopram, caution should be used when it is taken in combination with other centrally acting drugs.

7.5 Alcohol Although escitalopram did not potentiate the cognitive and motor effects of alcohol in a clinical trial, as with other psychotropic medications, the use of alcohol by patients taking escitalopram is not recommended.

7.6 Drugs That Interfere With Hemostasis (NSAIDs, Aspirin, Warfarin, etc.) Serotonin release by platelets plays an important role in hemostasis.

Epidemiological studies of the case-control and cohort design that have demonstrated an association between use of psychotropic drugs that interfere with serotonin reuptake and the occurrence of upper gastrointestinal bleeding have also shown that concurrent use of an NSAID or aspirin may potentiate the risk of bleeding.

Altered anticoagulant effects, including increased bleeding, have been reported when SSRIs and SNRIs are coadministered with warfarin.

Patients receiving warfarin therapy should be carefully monitored when escitalopram is initiated or discontinued.

7.7 Cimetidine In subjects who had received 21 days of 40 mg/day racemic citalopram, combined administration of 400 mg twice a day cimetidine for 8 days resulted in an increase in citalopram AUC and C max of 43% and 39%, respectively.

The clinical significance of these findings is unknown.

7.8 Digoxin In subjects who had received 21 days of 40 mg/day racemic citalopram, combined administration of citalopram and digoxin (single dose of 1 mg) did not significantly affect the pharmacokinetics of either citalopram or digoxin.

7.9 Lithium Coadministration of racemic citalopram (40 mg/day for 10 days) and lithium (30 mmol/day for 5 days) had no significant effect on the pharmacokinetics of citalopram or lithium.

Nevertheless, plasma lithium levels should be monitored with appropriate adjustment to the lithium dose in accordance with standard clinical practice.

Because lithium may enhance the serotonergic effects of escitalopram, caution should be exercised when escitalopram and lithium are coadministered.

7.10 Pimozide and Celexa In a controlled study, a single dose of pimozide 2 mg co-administered with racemic citalopram 40 mg given once daily for 11 days was associated with a mean increase in QT c values of approximately 10 msec compared to pimozide given alone.

Racemic citalopram did not alter the mean AUC or C max of pimozide.

The mechanism of this pharmacodynamic interaction is not known.

7.11 Sumatriptan There have been rare postmarketing reports describing patients with weakness, hyperreflexia, and incoordination following the use of an SSRI and sumatriptan.

If concomitant treatment with sumatriptan and an SSRI (e.g., fluoxetine, fluvoxamine, paroxetine, sertraline, citalopram, escitalopram) is clinically warranted, appropriate observation of the patient is advised.

7.12 Theophylline Combined administration of racemic citalopram (40 mg/day for 21 days) and the CYP1A2 substrate theophylline (single dose of 300 mg) did not affect the pharmacokinetics of theophylline.

The effect of theophylline on the pharmacokinetics of citalopram was not evaluated.

7.13 Warfarin Administration of 40 mg/day racemic citalopram for 21 days did not affect the pharmacokinetics of warfarin, a CYP3A4 substrate.

Prothrombin time was increased by 5%, the clinical significance of which is unknown.

7.14 Carbamazepine Combined administration of racemic citalopram (40 mg/day for 14 days) and carbamazepine (titrated to 400 mg/day for 35 days) did not significantly affect the pharmacokinetics of carbamazepine, a CYP3A4 substrate.

Although trough citalopram plasma levels were unaffected, given the enzyme-inducing properties of carbamazepine, the possibility that carbamazepine might increase the clearance of escitalopram should be considered if the two drugs are coadministered.

7.15 Triazolam Combined administration of racemic citalopram (titrated to 40 mg/day for 28 days) and the CYP3A4 substrate triazolam (single dose of 0.25 mg) did not significantly affect the pharmacokinetics of either citalopram or triazolam.

7.16 Ketoconazole Combined administration of racemic citalopram (40 mg) and ketoconazole (200 mg), a potent CYP3A4 inhibitor, decreased the C max and AUC of ketoconazole by 21% and 10%, respectively, and did not significantly affect the pharmacokinetics of citalopram.

7.17 Ritonavir Combined administration of a single dose of ritonavir (600 mg), both a CYP3A4 substrate and a potent inhibitor of CYP3A4, and escitalopram (20 mg) did not affect the pharmacokinetics of either ritonavir or escitalopram.

7.18 CYP3A4 and -2C19 Inhibitors In vitro studies indicated that CYP3A4 and -2C19 are the primary enzymes involved in the metabolism of escitalopram.

However, coadministration of escitalopram (20 mg) and ritonavir (600 mg), a potent inhibitor of CYP3A4, did not significantly affect the pharmacokinetics of escitalopram.

Because escitalopram is metabolized by multiple enzyme systems, inhibition of a single enzyme may not appreciably decrease escitalopram clearance.

7.19 Drugs Metabolized by Cytochrome P4502D6 In vitro studies did not reveal an inhibitory effect of escitalopram on CYP2D6.

In addition, steady state levels of racemic citalopram were not significantly different in poor metabolizers and extensive CYP2D6 metabolizers after multiple-dose administration of citalopram, suggesting that coadministration, with escitalopram, of a drug that inhibits CYP2D6, is unlikely to have clinically significant effects on escitalopram metabolism.

However, there are limited in vivo data suggesting a modest CYP2D6 inhibitory effect for escitalopram, i.e., coadministration of escitalopram (20 mg/day for 21 days) with the tricyclic antidepressant desipramine (single dose of 50 mg), a substrate for CYP2D6, resulted in a 40% increase in C max and a 100% increase in AUC of desipramine.

The clinical significance of this finding is unknown.

Nevertheless, caution is indicated in the coadministration of escitalopram and drugs metabolized by CYP2D6.

7.20 Metoprolol Administration of 20 mg/day escitalopram tablets for 21 days in healthy volunteers resulted in a 50% increase in C max and 82% increase in AUC of the beta-adrenergic blocker metoprolol (given in a single dose of 100 mg).

Increased metoprolol plasma levels have been associated with decreased cardioselectivity.

Coadministration of escitalopram and metoprolol had no clinically significant effects on blood pressure or heart rate.

7.21 Electroconvulsive Therapy (ECT) There are no clinical studies of the combined use of ECT and escitalopram.

OVERDOSAGE

10 The following have been reported with escitalopram tablet overdosage: Seizures, which may be delayed, and altered mental status including coma.

Cardiovascular toxicity, which may be delayed, incuding QRS, and QTc interval prolongation, wide complex tachyarrhythmias, and torsade de pointes.

Hypertension most commonly seen, but rarely can see hypotension alone or with co-ingestants incuding alcohol.

Serotonin syndrome (patients with a multiple drug overdosage with other proserotonergic drugs may have a higher risk).

Prolonged cardiac monitoring is recommended in escitalopram tablets overdosage ingestations due to the arrhythmia risk.

Gastrointestinal decontamination with activated charcoal should be considered in patients who present early after a escitalopram overdose.

Consider contacting a poison center (1-800-221-2222) or a medical toxicologist for overdosage management recommendations.

DESCRIPTION

11 Escitalopram tablets contain escitalopram oxalate, an orally administered selective serotonin reuptake inhibitor (SSRI).

Escitalopram is the pure S-enantiomer (single isomer) of the racemic bicyclic phthalane derivative citalopram.

Escitalopram oxalate is designated S-(+)-1-[3-(dimethyl-amino)propyl]-1-( p -fluorophenyl)-5-phthalancarbonitrile oxalate with the following structural formula: The molecular formula is C 20 H 21 FN 2 O • C 2 H 2 O 4 and the molecular weight is 414.40.

Escitalopram oxalate, USP occurs as a fine, white to slightly-yellow powder and is freely soluble in methanol and dimethyl sulfoxide (DMSO), soluble in isotonic saline solution, sparingly soluble in water and ethanol, slightly soluble in ethyl acetate, and insoluble in heptane.

Escitalopram oxalate, USP is available as tablets for oral administration.

Escitalopram tablets, USP are white to off-white, round, biconvex, film-coated tablets containing 6.38 mg, 12.75 mg And 25.55 mg escitalopram oxalate in strengths equivalent to 5 mg, 10 mg, and 20 mg, respectively, of escitalopram base.

The 10 and 20 mg tablets are scored.

The tablets also contain the following inactive ingredients: cellulose microcrystalline, colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, povidone and talc.

The film coating contains hypromellose, polyethylene glycol 400 and titanium dioxide.

Meets USP Dissolution Test 2.

1

CLINICAL STUDIES

14 14.1 Major Depressive Disorder Adolescents The efficacy of escitalopram as an acute treatment for major depressive disorder in adolescent patients was established in an 8-week, flexible-dose, placebo-controlled study that compared escitalopram 10 to 20 mg/day to placebo in outpatients 12 to 17 years of age inclusive who met DSM-IV criteria for major depressive disorder.

The primary outcome was change from baseline to endpoint in the Children’s Depression Rating Scale – Revised (CDRS-R).

In this study, escitalopram showed statistically significant greater mean improvement compared to placebo on the CDRS-R.

The efficacy of escitalopram in the acute treatment of major depressive disorder in adolescents was established, in part, on the basis of extrapolation from the 8-week, flexible-dose, placebo-controlled study with racemic citalopram 20 to 40 mg/day.

In this outpatient study in children and adolescents 7 to 17 years of age who met DSM-IV criteria for major depressive disorder, citalopram treatment showed statistically significant greater mean improvement from baseline, compared to placebo, on the CDRS-R; the positive results for this trial largely came from the adolescent subgroup.

Two additional flexible-dose, placebo-controlled MDD studies (one escitalopram study in patients ages 7 to 17 and one citalopram study in adolescents) did not demonstrate efficacy.

Although maintenance efficacy in adolescent patients has not been systematically evaluated, maintenance efficacy can be extrapolated from adult data along with comparisons of escitalopram pharmacokinetic parameters in adults and adolescent patients.

Adults The efficacy of escitalopram as a treatment for major depressive disorder was established in three, 8-week, placebo-controlled studies conducted in outpatients between 18 and 65 years of age who met DSM-IV criteria for major depressive disorder.

The primary outcome in all three studies was change from baseline to endpoint in the Montgomery Asberg Depression Rating Scale (MADRS).

A fixed-dose study compared 10 mg/day escitalopram and 20 mg/day escitalopram to placebo and 40 mg/day citalopram.

The 10 mg/day and 20 mg/day escitalopram treatment groups showed statistically significant greater mean improvement compared to placebo on the MADRS.

The 10 mg and 20 mg escitalopram groups were similar on this outcome measure.

In a second fixed-dose study of 10 mg/day escitalopram and placebo, the 10 mg/day escitalopram treatment group showed statistically significant greater mean improvement compared to placebo on the MADRS.

In a flexible-dose study, comparing escitalopram, titrated between 10 and 20 mg/day, to placebo and citalopram, titrated between 20 and 40 mg/day, the escitalopram treatment group showed statistically significant greater mean improvement compared to placebo on the MADRS.

Analyses of the relationship between treatment outcome and age, gender, and race did not suggest any differential responsiveness on the basis of these patient characteristics.

In a longer-term trial, 274 patients meeting (DSM-IV) criteria for major depressive disorder, who had responded during an initial 8-week, open-label treatment phase with escitalopram 10 or 20 mg/day, were randomized to continuation of escitalopram at their same dose, or to placebo, for up to 36 weeks of observation for relapse.

Response during the open-label phase was defined by having a decrease of the MADRS total score to ≤ 12.

Relapse during the double-blind phase was defined as an increase of the MADRS total score to ≥ 22, or discontinuation due to insufficient clinical response.

Patients receiving continued escitalopram experienced a statistically significant longer time to relapse compared to those receiving placebo.

14.2 Generalized Anxiety Disorder The efficacy of escitalopram in the acute treatment of Generalized Anxiety Disorder (GAD) was demonstrated in three, 8-week, multicenter, flexible-dose, placebo-controlled studies that compared escitalopram 10 to 20 mg/day to placebo in adult outpatients between 18 and 80 years of age who met DSM-IV criteria for GAD.

In all three studies, escitalopram showed statistically significant greater mean improvement compared to placebo on the Hamilton Anxiety Scale (HAM-A).

There were too few patients in differing ethnic and age groups to adequately assess whether or not escitalopram has differential effects in these groups.

There was no difference in response to escitalopram between men and women.

HOW SUPPLIED

16 /STORAGE AND HANDLING Escitalopram tablets, USP 5 mg are white to off-white, round, biconvex, film coated tablets debossed with ‘135’ on one side and ‘5’ on other side.

Bottles of 30 NDC 13668-135-30 Bottles of 100 NDC 13668-135-01 Bottles of 500 NDC 13668-135-05 Bottles of 1000 NDC 13668-135-10 Bottles of 4000 NDC 13668-135-40 Escitalopram tablets, USP 10 mg are white to off-white, round, biconvex, film coated tablets debossed with break line on one side, separating ’11’ and ’36’ on one side, and ’10’ on other side.

Bottles of 30 NDC 13668-136-30 Bottles of 100 NDC 13668-136-01 Bottles of 500 NDC 13668-136-05 Bottles of 1000 NDC 13668-136-10 Bottles of 3000 NDC 13668-136-43 Escitalopram tablets, USP 20 mg are white to off-white, round, biconvex, film coated tablets debossed with break line on one side, separating ’11’ and ’37’ on one side, and ’20’ on other side.

Bottles of 30 NDC 13668-137-30 Bottles of 100 NDC 13668-137-01 Bottles of 500 NDC 13668-137-05 Bottles of 1000 NDC 13668-137-10 Bottles of 2000 NDC 13668-137-20 Storage and Handling Store at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature].

RECENT MAJOR CHANGES

Warnings and Precautions ( 5.1 1) 09/2021

GERIATRIC USE

8.5 Geriatric Use Approximately 6% of the 1,144 patients receiving escitalopram in controlled trials of escitalopram in major depressive disorder and GAD were 60 years of age or older; elderly patients in these trials received daily doses of escitalopram between 10 and 20 mg.

The number of elderly patients in these trials was insufficient to adequately assess for possible differential efficacy and safety measures on the basis of age.

Nevertheless, greater sensitivity of some elderly individuals to effects of escitalopram cannot be ruled out.

SSRIs and SNRIs, including escitalopram, have been associated with cases of clinically significant hyponatremia in elderly patients, who may be at greater risk for this adverse event [see Hyponatremia ( 5.6 )] .

In two pharmacokinetic studies, escitalopram half-life was increased by approximately 50% in elderly subjects as compared to young subjects and C max was unchanged [see Clinical Pharmacology ( 12.3 )] .

10 mg/day is the recommended dose for elderly patients [see Dosage and Administration ( 2.3 )] .

Of 4,422 patients in clinical studies of racemic citalopram, 1,357 were 60 and over, 1,034 were 65 and over, and 457 were 75 and over.

No overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but again, greater sensitivity of some elderly individuals cannot be ruled out.

DOSAGE FORMS AND STRENGTHS

3 Tablets: 5 mg, 10 mg (scored) and 20 mg (scored) ( 3.1 ) Escitalopram tablets, USP are film-coated, round tablets containing escitalopram oxalate in strengths equivalent to 5 mg, 10 mg and 20 mg escitalopram base.

The 10 and 20 mg tablets are scored.

5 mg tablets are debossed with ‘135’ on one side and ‘5’ on other side.

10 mg tablets are debossed with break line on one side, separating ’11’ and ’36’ on one side, and ’10’ on other side.

20 mg tablets are debossed with break line on one side, separating ’11’ and ’37’ on one side, and ’20’ on other side.

MECHANISM OF ACTION

12.1 Mechanism of Action The mechanism of antidepressant action of escitalopram, the S-enantiomer of racemic citalopram, is presumed to be linked to potentiation of serotonergic activity in the central nervous system (CNS) resulting from its inhibition of CNS neuronal reuptake of serotonin (5-HT).

INDICATIONS AND USAGE

1 Escitalopram is a selective serotonin reuptake inhibitor (SSRI) indicated for: Acute and Maintenance Treatment of Major Depressive Disorder (MDD) in adults and adolescents aged 12 to 17 years ( 1.1 ) Acute Treatment of Generalized Anxiety Disorder (GAD) in adults ( 1.2 ) 1.1 Major Depressive Disorder Escitalopram tablets are indicated for the acute and maintenance treatment of major depressive disorder in adults and in adolescents 12 to 17 years of age [see Clinical Studies ( 14.1 )].

A major depressive episode (DSM-IV) implies a prominent and relatively persistent (nearly every day for at least 2 weeks) depressed or dysphoric mood that usually interferes with daily functioning, and includes at least five of the following nine symptoms: depressed mood, loss of interest in usual activities, significant change in weight and/or appetite, insomnia or hypersomnia, psychomotor agitation or retardation, increased fatigue, feelings of guilt or worthlessness, slowed thinking or impaired concentration, a suicide attempt or suicidal ideation.

1.2 Generalized Anxiety Disorder Escitalopram tablets are indicated for the acute treatment of Generalized Anxiety Disorder (GAD) in adults [see ClinicalStudies ( 14.2 )] .

Generalized Anxiety Disorder (DSM-IV) is characterized by excessive anxiety and worry (apprehensive expectation) that is persistent for at least 6 months and which the person finds difficult to control.

It must be associated with at least 3 of the following symptoms: restlessness or feeling keyed up or on edge, being easily fatigued, difficulty concentrating or mind going blank, irritability, muscle tension, and sleep disturbance.

PEDIATRIC USE

8.4 Pediatric Use The safety and effectiveness of escitalopram have been established in adolescents (12 to 17 years of age) for the treatment of major depressive disorder [see Clinical Studies ( 14.1 )] .

Although maintenance efficacy in adolescent patients with major depressive disorder has not been systematically evaluated, maintenance efficacy can be extrapolated from adult data along with comparisons of escitalopram pharmacokinetic parameters in adults and adolescent patients.

The safety and effectiveness of escitalopram have not been established in pediatric (younger than 12 years of age) patients with major depressive disorder.

In a 24-week, open-label safety study in 118 children (aged 7 to 11 years) who had major depressive disorder, the safety findings were consistent with the known safety and tolerability profile for escitalopram.

Safety and effectiveness of escitalopram has not been established in pediatric patients less than 18 years of age with Generalized Anxiety Disorder.

Decreased appetite and weight loss have been observed in association with the use of SSRIs.

Consequently, regular monitoring of weight and growth should be performed in children and adolescents treated with an SSRI such as escitalopram.

PREGNANCY

8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to antidepressants during pregnancy.

Healthcare providers are encouraged to register patients by calling the National Pregnancy Registry for Antidepressants at 1-844-405-6185 or visiting online at https://womensmentalhealth.org/clinical-and-research-programs/pregnancyregistry/antidepressants/ Risk Summary Available data from published epidemiologic studies and postmarketing reports have not established risk of major birth defects or miscarriage.

There are risks of persistent pulmonary hypertension of the newborn (PPHN) (see Data) and poor neonatal adaptation (see Clinical Considerations) with exposure to selective serotonin reuptake inhibitors (SSRIs), including escitalopram, during pregnancy.

There are risks associated with untreated depression in pregnancy (see Clinical Considerations).

In animal reproduction studies, both escitalopram and racemic citalopram have been shown to have adverse effects on embryo/fetal and postnatal development, including fetal structural abnormalities, when administered at doses greater than human therapeutic doses (see Data ).

The estimated background risk of major birth defects and miscarriage for the indicated population is unknown.

All pregnancies have a background risk of birth defect, loss, or other adverse outcomes.

In the U.S.

general population, the estimated background risk major birth defects and miscarriage in the clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively.

Clinical Considerations Disease-associated maternal risk and/or embryo/fetal risk Women who discontinue antidepressants are more likely to experience a relapse of major depression than women who continue antidepressants.

This finding is from a prospective longitudinal study of 201 pregnant women with a history of major depression, who were euthymic and taking antidepressants at the beginning of pregnancy.

Consider the risk of untreated depression when discontinuing or changing treatment with antidepressant medication during pregnancy and postpartum.

Fetal/Neonatal adverse reactions Neonates exposed to SSRIs or SNRIs, including escitalopram, late in third trimester have developed complications requiring prolonged hospitalization, respiratory support, and tube feeding.

Such complications can arise immediately upon delivery.

Reported clinical findings have included respiratory distress, cyanosis, apnea, seizures, temperature instability, feeding difficulty, vomiting, hypoglycemia, hypotonia, hypertonia, hyperreflexia, tremor, jitteriness, irritability, and constant crying.

These features are consistent with either a direct toxic effect of SSRIs and SNRIs or, possibly, a drug discontinuation syndrome.

It should be noted that, in some cases, the clinical picture is consistent with serotonin syndrome [see Warnings and Precautions ( 5.2 )] .

Data Human Data Exposure to SSRIs, particularly later in pregnancy, may increase the risk for PPHN.

PPHN occurs in 1 to 2 per 1,000 live births in the general populations and is associated with substantial neonatal morbidity and mortality.

Animal Data In a rat embryo/fetal development study, oral administration of escitalopram (56, 112, or 150 mg/kg/day) to pregnant animals during the period of organogenesis resulted in decreased fetal body weight and associated delays in ossification at the two higher doses [approximately ≥ 55 times the maximum recommended human dose (MRHD) of 20 mg/day on a mg/m 2 basis].

Maternal toxicity (clinical signs and decreased body weight gain and food consumption), mild at 56 mg/kg/day, was present at all dose levels.

The developmental no-effect dose of 56 mg/kg/day is approximately 27 times the MRHD of 20 mg on a mg/m 2 basis.

No malformations were observed at any of the doses tested (as high as 73 times the MRHD on a mg/m 2 basis).

When female rats were treated with escitalopram (6, 12, 24, 48 mg/kg/day) during pregnancy and through weaning, slightly increased offspring mortality and growth retardation were notes art 48 mg/kg/day which approximately 23 times the MRHD of 20 mg on a mg/m 2 basis.

Slight maternal toxicity (clinical signs and decreased body weight gain and food consumption) was seen at this dose.

Slightly increased offspring mortality was also seen at 24 mg/kg/day.

The no-effect dose was 12 mg/kg/day which is approximately 6 times the MRHD of 20 mg on a mg/m 2 basis.

In two rat embryo/fetal development studies, oral administration of racemic citalopram (32, 56, or 112 mg/kg/day) to pregnant animals during the period of organogenesis resulted in decreased embryo/fetal growth and survival and an increased incidence of fetal abnormalities (including cardiovascular and skeletal defects) at the high dose, which is approximately 18 times the MRHD of 60 mg/day on a mg/m 2 basis.

The dose was also associated with maternal toxicity (clincial signs, decreased bodey weight gain).

The developmental no-effect dose was 56 mg/kg/day is approximately 9 times the MRHD on a mg/m 2 basis.

In a rabbit study, no adverse effects on embryo/fetal development were observed at doses of racemic citalopram of up to 16 mg/kg/day, or approximately 5 times the MRHD on a mg/m 2 basis.

Thus, developmental effects of racemic citalopram were observed at a maternally toxic dose in the rat and were not observed in the rabbit.

When female rats were treated with racemic citalopram (4.8, 12.8, or 32 mg/kg/day) from late gestation through weaning, increased offspring mortality during the first 4 days after birth and persistent offspring growth retardation were observed at the highest dose, which is approximately 5 times the MRHD of 60 mg on a mg/m 2 basis.

Similar effects on offspring mortality and growth were seen when dams were treated throughout gestation and early lactation at doses ≥ 24 mg/kg/day, approximately 4 times the MRHD on a mg/m 2 basis.

A no-effect dose was not determined in that study.

BOXED WARNING

WARNING: SUICIDAL THOUGHTS AND BEHAVIORS See full prescribing information for complete boxed warning .

Increased risk of suicidal thoughts and behavior in pediatric and young adults taking antidepressants.

Closely monitor all antidepressant-treated patients for clinical worsening and emergence of suicidal thoughts and behaviors ( 5.1 ).

Escitalopram tablets are not approved for use in pediatric patients less than 12 years of age ( 8.4 ).

WARNINGS: SUICIDAL THOUGHTS AND BEHAVIORS Antidepressants increased the risk of suicidal thoughts and behaviors in pediatric and yound adult patients in short-term studies.

Closely monitor all antidepressants treated patients for clinical worsening, and for emergence of suicidal thoughts and behaviros [see Warnings and Precautions ( 5.1 )].

Escitalopram tablets is not approved for use in pediatric patients less than 12 years of age [see Use in Specific Populations ( 8.4) ].

WARNING AND CAUTIONS

5 WARNINGS AND PRECAUTIONS Serotonin Syndrome: Serotonin syndrome has been reported with SSRIs and SNRIs, including escitalopram, both when taken alone, but especially when co-administered with other serotonergic agents (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, amphetamines, and St.

John’s Wort).

If such symptoms occur, discontinue escitalopram and initiate supportive treatment.

If concomitant use of escitalopram with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases ( 4 , 5.2 ).

Discontinuation of Treatment with Escitalopram: A gradual reduction in dose rather than abrupt cessation is recommended whenever possible ( 5.3 ).

Seizures: Prescribe with care in patients with a history of seizure ( 5.4 ).

Activation of Mania/Hypomania: Screen patients for bipolar disorder ( 5.5 ).

Hyponatremia: Can occur in association with SIADH ( 5.6 ) Abnormal Bleeding: Use caution in concomitant use with NSAIDs, aspirin, warfarin or other drugs that affect coagulation ( 5.7 ).

Interference with Cognitive and Motor Performance: Use caution when operating machinery ( 5.8 ).

Angle Closure Glaucoma: Angle closure glaucoma has occurred in patients with untreated anatomically narrow angles treated with antidepressants.

( 5.9 ) Use in Patients with Concomitant Illness: Use caution in patients with diseases or conditions that produce altered metabolism or hemodynamic responses ( 5.10 ).

Sexual Dysfunction: Escitalopram may cause symptoms of sexual dysfunction ( 5.11 ) 5.1 Suicidal Thoughts and Behaviors in Adolescents and Young Adults In pooled analyses of placebo-controlled trials of antidepressant drugs (SSRIs and other antidepressant classes) that included approximately 77,000 adult patients and 4,500 pediatric patients, the incidence of suicidal thoughts and behaviors in the antidepressant-treated patients age 24 years and younger was greater than in placebo-treated patients.

There was considerable variation in risk of suicidal thoughts and behaviors among drugs, but there was an increased risk identified in young patients for most drugs studied.

There were differences in absolute risk of suicidal thoughts and behaviors across the different indications, with the highest incidence in patients with MDD.

The drug-placebo differences in the number of cases of suicidal thoughts and behaviors per 1,000 patients treated are provided in Table1.

Table 1: Risk Difference of the Numbers of Patients of Suicidal Thoughts and Behaviors in the Pooled-Placebo-Controlled Trials of Antidepressants in Pediatric and Adult Patients TABLE 1 Age Range Drug-Placebo Difference in Number of Patients of Suicidal Thoughts and Behaviors per 1,000 Patients Treated Increases Compared to Placebo <18 years old 14 additional patients 18 to 24 years old 5 additional patients Decreases Compared to Placebo 25 to 64 years old 1 fewer patient ≥65 years old 6 fewer patients It is unknown whether the risk of suicidal thoughts and behaviors in children, adolescents, and young adults extends to longer-term use, i.e., beyond four months.

However, there is substantial evidence from placebo-controlled maintenance trials in adults with MDD that antidepressants delay the recurrence of depression and that depression itself is a risk factor for suicidal thoughts and behaviors.

Monitor all antidepressant-treated patients for any indication for clinical worsening and emergence of suicidal thoughts and behaviors, especially during the initial few months of drug therapy, and at times of dosage changes.

Counsel family members or caregivers of patients to monitor for changes in behavior and to alert the healthcare provider.

Consider changing the therapeutic regimen, including possibly discontinuing escitalopram, in patients whose depression is persistently worse, or who are experiencing emergent suicidal thoughts or behaviors.

5.2 Serotonin Syndrome The development of a potentially life-threatening serotonin syndrome has been reported with SNRIs and SSRIs, including escitalopram, alone but particularly with concomitant use of other serotonergic drugs (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, amphetamines, and St.

John’s Wort) and with drugs that impair metabolism of serotonin (in particular, MAOIs, both those intended to treat psychiatric disorders and also others, such as linezolid and intravenous methylene blue).

Serotonin syndrome symptoms may include mental status changes (e.g., agitation, hallucinations, delirium, and coma), autonomic instability (e.g., tachycardia, labile blood pressure, dizziness, diaphoresis, flushing, hyperthermia), neuromuscular symptoms (e.g., tremor, rigidity, myoclonus, hyperreflexia, incoordination) seizures, and/or gastrointestinal symptoms (e.g., nausea, vomiting, diarrhea).

Patients should be monitored for the emergence of serotonin syndrome.

The concomitant use of escitalopram with MAOIs intended to treat psychiatric disorders is contraindicated.

Escitalopram should also not be started in a patient who is being treated with MAOIs such as linezolid or intravenous methylene blue.

All reports with methylene blue that provided information on the route of administration involved intravenous administration in the dose range of 1 mg/kg to 8 mg/kg.

No reports involved the administration of methylene blue by other routes (such as oral tablets or local tissue injection) or at lower doses.

There may be circumstances when it is necessary to initiate treatment with an MAOI such as linezolid or intravenous methylene blue in a patient taking escitalopram.

Escitalopram should be discontinued before initiating treatment with the MAOI [ see Contraindications ( 4.1 ) and Dosage and Administration ( 2.5 and 2.6 ) ] .

If concomitant use of escitalopram with other serotonergic drugs including, triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, buspirone, tryptophan, amphetamine and St.

John’s Wort is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases.

Treatment with escitalopram and any concomitant serotonergic agents, should be discontinued immediately if the above events occur and supportive symptomatic treatment should be initiated.

5.3 Discontinuation of Treatment with Escitalopram Tablets During marketing of escitalopram tablets and other SSRIs and SNRIs (serotonin and norepinephrine reuptake inhibitors), there have been spontaneous reports of adverse events occurring upon discontinuation of these drugs, particularly when abrupt, including the following: dysphoric mood, irritability, agitation, dizziness, sensory disturbances (e.g., paresthesias such as electric shock sensations), anxiety, confusion, headache, lethargy, emotional lability, insomnia, and hypomania.

While these events are generally self-limiting, there have been reports of serious discontinuation symptoms.

Patients should be monitored for these symptoms when discontinuing treatment with escitalopram.

A gradual reduction in the dose rather than abrupt cessation is recommended whenever possible.

If intolerable symptoms occur following a decrease in the dose or upon discontinuation of treatment, then resuming the previously prescribed dose may be considered.

Subsequently, the physician may continue decreasing the dose but at a more gradual rate [see Dosage and Administration ( 2.4 )] .

5.4 Seizures Although anticonvulsant effects of racemic citalopram have been observed in animal studies, escitalopram has not been systematically evaluated in patients with a seizure disorder.

These patients were excluded from clinical studies during the product’s premarketing testing.

In clinical trials of escitalopram, cases of convulsion have been reported in association with escitalopram treatment.

Like other drugs effective in the treatment of major depressive disorder, escitalopram tablets should be introduced with care in patients with a history of seizure disorder.

5.5 Activation of Mania/Hypomania In patients with bipolar disorder, treating a depressive episode with escitalopram or another antidepressant may precipate a mixed/manic episode.

In placebo-controlled trials of escitalopram in major depressive disorder, activation of mania/hypomania was reported in one (0.1%) of 715 patients treateds with escitalopram and in none of the 592 patients treated with placebo.

One additional case of hypomania has been reported in association with escitalopram treatment.

Activation of mania/hypomania has also been reported in small proportion of patients with major affective disorders treated with racemic citalopram and other marketed drugs effective in the treatment of major depressive disorder.

Prior to initiating treatment with escitalopram screen patients for any personal or family history of bipolar disorder, mania, or hypomania [see Dosage and Administration ( 2.3 )] .

5.6 Hyponatremia Hyponatremia may occur as a result of treatment with SSRIs and SNRIs, including escitalopram.

In many cases, this hyponatremia appears to be the result of the syndrome of inappropriate antidiuretic hormone secretion (SIADH), and was reversible when escitalopram was discontinued.

Cases with serum sodium lower than 110 mmol/L have been reported.

Elderly patients may be at greater risk of developing hyponatremia with SSRIs and SNRIs.

Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Geriatric Use ( 8.5 )] .

Discontinuation of escitalopram should be considered in patients with symptomatic hyponatremia and appropriate medical intervention should be instituted.

Signs and symptoms of hyponatremia include headache, difficulty concentrating, memory impairment, confusion, weakness, and unsteadiness, which may lead to falls.

Signs and symptoms associated with more severe and/or acute cases have included hallucination, syncope, seizure, coma, respiratory arrest, and death.

5.7 Abnormal Bleeding SSRIs and SNRIs, including escitalopram, may increase the risk of bleeding events.

Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs, warfarin, and other anticoagulants may add to the risk.

Case reports and epidemiological studies (case-control and cohort design) have demonstrated an association between use of drugs that interfere with serotonin reuptake and the occurrence of gastrointestinal bleeding.

Bleeding events related to SSRIs and SNRIs use have ranged from ecchymoses, hematomas, epistaxis, and petechiae to life-threatening hemorrhages.

Patients should be cautioned about the risk of bleeding associated with the concomitant use of escitalopram and NSAIDs, aspirin, or other drugs that affect coagulation.

5.8 Interference with Cognitive and Motor Performance In a study in normal volunteers, escitalopram 10 mg/day did not produce impairment of intellectual function or psychomotor performance.

Because any psychoactive drug may impair judgment, thinking, or motor skills, however, patients should be cautioned about operating hazardous machinery, including automobiles, until they are reasonably certain that escitalopram tablets therapy does not affect their ability to engage in such activities.

5.9 Angle Closure Glaucoma Angle Closure Glaucoma: The pupillary dilation that occurs following use of many antidepressant drugs including escitalopram may trigger an angle closure attack in a patient with anatomically narrow angles who does not have a patent iridectomy.

5.10 Use in Patients with Concomitant Illness Clinical experience with escitalopram in patients with certain concomitant systemic illnesses is limited.

Caution is advisable in using escitalopram tablets in patients with diseases or conditions that produce altered metabolism or hemodynamic responses.

Escitalopram has not been systematically evaluated in patients with a recent history of myocardial infarction or unstable heart disease.

Patients with these diagnoses were generally excluded from clinical studies during the product’s premarketing testing.

In subjects with hepatic impairment, clearance of racemic citalopram was decreased and plasma concentrations were increased.

The recommended dose of escitalopram tablets in hepatically impaired patients is 10 mg/day [see Dosage and Administration ( 2.3 )] .

Because escitalopram is extensively metabolized, excretion of unchanged drug in urine is a minor route of elimination.

Until adequate numbers of patients with severe renal impairment have been evaluated during chronic treatment with escitalopram tablets, however, it should be used with caution in such patients [see Dosage and Administration ( 2.3 )] .

5.11 Sexual Dysfunction Use of SSRIs, including escitalopram, may cause symptoms of sexual dysfunction [see Adverse Reactions ( 6.1 ) ] .

In male patients, SSRI use may result in ejaculatory delay or failure, decreased libido, and erectile dysfunction.

In female patients, SSRI use may result in decreased libido and delayed or absent orgasm.

It is important for prescribers to inquire about sexual function prior to initiation of escitalopram and to inquire specifically about changes in sexual function during treatment, because sexual function may not be spontaneously reported.

When evaluating changes in sexual function, obtaining a detailed history (including timing of symptom onset) is important because sexual symptoms may have other causes, including the underlying psychiatric disorder.

Discuss potential management strategies to support patients in making informed decisions about treatment.

INFORMATION FOR PATIENTS

17 PATIENT COUNSELING INFORMATION See FDA-approved Medication Guide Advise the patient to read the FDA-approved patient labeling (Medication Guide).

Suicidal Thoughts and Behaviors Advise patients, their families and caregivers to look for the emergence of suicidal ideation and behavior, especially during treatment and when the dose is adjusted up or down, and instruct them to report such symptoms to their healthcare provider [see Boxed Warning and Warnings and Precautions ( 5.1 )].

Serotonin Syndrome Patients should be cautioned about the risk of serotonin syndrome with the concomitant use of escitalopram with other serotonergic drugs including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, amphetamines and St.

John’s Wort, and with drugs that impair metabolism of serotonin (in particular, MAOIs, both those intended to treat psychiatric disorders and also others, such as linezolid) [see Warnings and Precautions ( 5.2 )].

Activation of Mania or Hypomania Advise patients and their caregivers to observe for signs of activation of mania/hypomania and instruct them to report such symptoms to the healthcare provider [see Warnings and Precautions ( 5.5 )].

Abnormal Bleeding Patients should be cautioned about the concomitant use of escitalopram and NSAIDs, aspirin, warfarin, or other drugs that affect coagulation since combined use of psychotropic drugs that interfere with serotonin reuptake and these agents has been associated with an increased risk of bleeding [see Warnings and Precautions ( 5.7 )].

Angle Closure Glaucoma Patients should be advised that taking escitalopram tablets can cause mild pupillary dilation, which in susceptible individuals, can lead to an episode of angle closure glaucoma.

Pre-existing glaucoma is almost always open-angle glaucoma because angle closure glaucoma, when diagnosed, can be treated definitively with iridectomy.

Open-angle glaucoma is not a risk factor for angle closure glaucoma.

Patients may wish to be examined to determine whether they are susceptible to angle closure, and have a prophylactic procedure (e.g., iridectomy), if they are susceptible [see Warnings and Precautions ( 5.9 )].

Sexual Dysfunction Advise patients that use escitalopram may cause symptoms of sexual dysfunction in both male and female patients.

Inform patients that they should discuss any changes in sexual function and potential management strategies with their healthcare provider [see Warnings and Precautions ( 5.11 )] .

Concomitant Medications Since escitalopram is the active isomer of racemic citalopram (Celexa), the two agents should not be coadministered.

Patients should be advised to inform their physician if they are taking, or plan to take, any prescription or over-the-counter drugs, as there is a potential for interactions.

Continuing the Therapy Prescribed While patients may notice improvement with escitalopram tablets therapy in 1 to 4 weeks, they should be advised to continue therapy as directed.

Interference with Psychomotor Performance Because psychoactive drugs may impair judgment, thinking, or motor skills, patients should be cautioned about operating hazardous machinery, including automobiles, until they are reasonably certain that escitalopram tablets therapy does not affect their ability to engage in such activities.

Alcohol Patients should be told that, although escitalopram has not been shown in experiments with normal subjects to increase the mental and motor skill impairments caused by alcohol, the concomitant use of escitalopram and alcohol in depressed patients is not advised.

Pregnancy Advise pregnant women to notify their healthcare providers if they become pregnant or intend to become pregnant during treatment with escitalopram tablets.

Advise patients that escitalopram use later in pregnancy may lead to increased risk for neonatal complications requiring prolonged hospitalization, respiratory support, tube feeding, and/or persistent pulmonary hypertension (PPHN) of the newborn [see Use in Specific Populations ( 8.1 )].

Advise women that there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to escitalopram during pregnancy [see Use in Specific Populations ( 8.1 )].

Lactation Advise breastfeeding women using escitalopram to monitor infants for excess sedation, restlessness, agitation, poor feeding and poor weight gain and to seek medical care if they notice these signs [see Use in Specific Populations ( 8.2 )].

Need for Comprehensive Treatment Program Escitalopram tablets are indicated as an integral part of a total treatment program for MDD that may include other measures (psychological, educational, social) for patients with this syndrome.

Drug treatment may not be indicated for all adolescents with this syndrome.

Safety and effectiveness of escitalopram in MDD has not been established in pediatric patients less than 12 years of age.

Antidepressants are not intended for use in the adolescent who exhibits symptoms secondary to environmental factors and/or other primary psychiatric disorders.

Appropriate educational placement is essential and psychosocial intervention is often helpful.

When remedial measures alone are insufficient, the decision to prescribe antidepressant medication will depend upon the physician’s assessment of the chronicity and severity of the patient’s symptoms.

Manufactured by: TORRENT PHARMACEUTICALS LTD., INDIA.

Manufactured for: TORRENT PHARMA INC., Basking Ridge, NJ 07920 8090664 Revised: October 2022 logo

DOSAGE AND ADMINISTRATION

2 Escitalopram tablets should generally be administered once daily, morning or evening with or without food ( 2.1 , 2.2 ).

Indication Recommended Dose MDD in Adolescents ( 2.1 ) Initial: 10 mg once daily Recommended: 10 mg once daily Maximum: 20 mg once daily MDD in Adults ( 2.1 ) Initial: 10 mg once daily Recommended: 10 mg once daily Maximum: 20 mg once daily GAD in Adults ( 2.2 ) Initial: 10 mg once daily Recommended: 10 mg once daily No additional benefits seen at 20 mg/day dose ( 2.1 ).

10 mg/day is the recommended dose for most elderly patients and patients with hepatic impairment ( 2.3 ).

No dosage adjustment for patients with mild or moderate renal impairment.

Use caution in patients with severe renal impairment ( 2.3 ).

Discontinuing escitalopram tablets: A gradual dose reduction is recommended ( 2.4 ).

Escitalopram tablets should be administered once daily, in the morning or evening, with or without food.

2.1 Major Depressive Disorder Initial Treatment Adolescents The recommended dose of escitalopram tablets is 10 mg once daily.

A flexible-dose trial of escitalopram tablets (10 to 20 mg/day) demonstrated the effectiveness of escitalopram tablets [see Clinical Studies ( 14.1 )] .

If the dose is increased to 20 mg, this should occur after a minimum of three weeks.

Adults The recommended dose of escitalopram tablets is 10 mg once daily.

A fixed-dose trial of escitalopram demonstrated the effectiveness of both 10 mg and 20 mg of escitalopram, but failed to demonstrate a greater benefit of 20 mg over 10 mg [see Clinical Studies ( 14.1 )] .

If the dose is increased to 20 mg, this should occur after a minimum of one week.

Maintenance Treatment It is generally agreed that acute episodes of major depressive disorder require several months or longer of sustained pharmacological therapy beyond response to the acute episode.

Systematic evaluation of continuing escitalopram 10 or 20 mg/day in adults patients with major depressive disorder who responded while taking escitalopram during an 8-week, acute-treatment phase demonstrated a benefit of such maintenance treatment [see Clinical Studies ( 14.1 )] .

Nevertheless, the physician who elects to use escitalopram for extended periods should periodically re-evaluate the long-term usefulness of the drug for the individual patient.

Patients should be periodically reassessed to determine the need for maintenance treatment.

2.2 Generalized Anxiety Disorder Initial Treatment Adults The recommended starting dose of escitalopram tablets is 10 mg once daily.

If the dose is increased to 20 mg, this should occur after a minimum of one week.

Maintenance Treatment Generalized anxiety disorder is recognized as a chronic condition.

The efficacy of escitalopram in the treatment of GAD beyond 8 weeks has not been systematically studied.

The physician who elects to use escitalopram for extended periods should periodically re-evaluate the long-term usefulness of the drug for the individual patient.

2.3 Screen for Bipolar Disorder Prior to starting Escitalopram Tablets Prior to initiating treatment with escitalopram or another antidepressant, screen patients for personal family history of bipolar disorder, mania, or hypomania [see Warnings and Precautions ( 5.5 )].

2.4 Special Populations 10 mg/day is the recommended dose for most elderly patients and patients with hepatic treatment.

No dosage adjustment is necessary for patients with mild or moderate renal impairment.

Escitalopram should be used with caution in patients with severe renal impairment.

2.5 Discontinuation of Treatment with Escitalopram Tablets Symptoms associated with discontinuation of escitalopram and other SSRIs and SNRIs have been reported [see Warnings and Precautions ( 5.3 )].

Patients should be monitored for these symptoms when discontinuing treatment.

A gradual reduction in the dose rather than abrupt cessation is recommended whenever possible.

If intolerable symptoms occur following a decrease in the dose or upon discontinuation of treatment, then resuming the previously prescribed dose may be considered.

Subsequently, the physician may continue decreasing the dose but at a more gradual rate.

2.6 Switching a Patient to or from a Monoamine Oxidase Inhibitor (MAOI) Intended to Treat Psychiatric Disorders At least 14 days should elapse between discontinuation of an MAOI intended to treat psychiatric disorders and initiation of therapy with escitalopram.

Conversely, at least 14 days should be allowed after stopping escitalopram tablets before starting an MAOI intended to treat psychiatric disorders [see Contraindications ( 4.1 )] .

2.7 Use of Escitalopram Tablets with Other MAOIs such as Linezolid or Methylene Blue Do not start escitalopram in a patient who is being treated with linezolid or intravenous methylene blue because there is an increased risk of serotonin syndrome.

In a patient who requires more urgent treatment of a psychiatric condition, other interventions, including hospitalization, should be considered [see Contraindications ( 4.1 )] .

In some cases, a patient already receiving escitalopram therapy may require urgent treatment with linezolid or intravenous methylene blue.

If acceptable alternatives to linezolid or intravenous methylene blue treatment are not available and the potential benefits of linezolid or intravenous methylene blue treatment are judged to outweigh the risks of serotonin syndrome in a particular patient, escitalopram should be stopped promptly, and linezolid or intravenous methylene blue can be administered.

The patient should be monitored for symptoms of serotonin syndrome for 2 weeks or until 24 hours after the last dose of linezolid or intravenous methylene blue, whichever comes first.

Therapy with escitalopram may be resumed 24 hours after the last dose of linezolid or intravenous methylene blue [see Warnings and Precautions ( 5.2 )] .

The risk of administering methylene blue by non-intravenous routes (such as oral tablets or by local injection) or in intravenous doses much lower than 1 mg/kg with escitalopram is unclear.

The clinician should, nevertheless, be aware of the possibility of emergent symptoms of serotonin syndrome with such use [see Warnings and Precautions ( 5.2 )] .

Ibuprofen 400 MG Oral Tablet [Ibu]

WARNINGS

CARDIOVASCULAR EFFECTS Cardiovascular Thrombotic Events Clinical trials of several COX-2 selective and nonselective NSAIDsof up to three years duration have shown an increased risk of seriouscardiovascular (CV) thrombotic events, myocardial infarction, andstroke, which can be fatal.

All NSAIDs, both COX-2 selective and nonselective,may have a similar risk.

Patients with known CV disease orrisk factors for CV disease may be at greater risk.

To minimize thepotential risk for an adverse CV event in patients treated with anNSAID, the lowest effective dose should be used for the shortestduration possible.

Physicians and patients should remain alert for thedevelopment of such events, even in the absence of previous CVsymptoms.

Patients should be informed about the signs and/orsymptoms of serious CV events and the steps to take if they occur.

There is no consistent evidence that concurrent use of aspirin mitigatesthe increased risk of serious CV thrombotic events associatedwith NSAID use.

The concurrent use of aspirin and an NSAID doesincrease the risk of serious GI events (see GI ) .

Two large, controlled clinical trials of a COX-2 selective NSAID forthe treatment of pain in the first 10-14 days following CABG surgeryfound an increased incidence of myocardial infarction and stroke (see CONTRAINDICATIONS ).

Hypertension NSAIDs including IBU tablets, can lead to onset of new hypertensionor worsening of preexisting hypertension, either of which maycontribute to the increased incidence of CV events.

Patients takingthiazides or loop diuretics may have impaired response to these therapieswhen taking NSAIDs.

NSAIDs, including IBU tablets, should beused with caution in patients with hypertension.

Blood pressure (BP)should be monitored closely during the initiation of NSAID treatmentand throughout the course of therapy.

Congestive Heart Failure and Edema Fluid retention and edema have been observed in some patients taking NSAIDs.

IBU tablets should be used with caution in patients with fluid retention or heart failure.

Gastrointestinal Effects – Risk of Ulceration, Bleeding, and Perforation NSAIDs, including IBU tablets, can cause serious gastrointestinal(GI) adverse events including inflammation, bleeding, ulceration, and perforation of the stomach, small intestine, or large intestine, which can be fatal.

These serious adverse events can occur at any time, with or without warning symptoms, in patients treated with NSAIDs.

Only one in five patients, who develop a serious upper GI adverse event on NSAID therapy, is symptomatic.

Upper GI ulcers, gross bleeding, or perforation caused by NSAIDs occur in approximately 1% of patientstreated for 3-6 months, and in about 2-4% of patients treated for oneyear.

These trends continue with longer duration of use, increasing the likelihood of developing a serious GI event at some time during the course of therapy.

However, even short-term therapy is not without risk.

NSAIDs should be prescribed with extreme caution in thosewith a prior history of ulcer disease or gastrointestinal bleeding.Patients with a prior history of peptic ulcer disease and/or gastrointestinal bleeding who use NSAIDs have a greater than 10-fold increased risk for developing a GI bleed compared to patients treatedwith neither of these risk factors.

Other factors that increase the riskof GI bleeding in patients treated with NSAIDs include concomitant use of oral corticosteroids or anticoagulants, longer duration of NSAID therapy, smoking, use of alcohol, older age, and poor general health status.

Most spontaneous reports of fatal GI events are in elderly or debilitated patients and therefore, special care should be taken in treating this population.

To minimize the potential risk for an adverse GI event in patients treated with an NSAID, the lowest effective dose should be used for the shortest possible duration.

Patients and physicians should remain alert for signs and symptoms of GIulcerations and bleeding during NSAID therapy and promptly initiate additional evaluation and treatment if a serious GI event is suspected.This should include discontinuation of the NSAID until a serious GI adverse event is ruled out.

For high-risk patients, alternate therapies that do not involve NSAIDs should be considered.

Renal Effects Long-term administration of NSAIDs has resulted in renal papillary necrosis and other renal injury.

Renal toxicity has also been seen in patients in whom renal prostaglandins have a compensatory role in the maintenance of renal perfusion.

In these patients, administration of a NSAID may cause a dose dependent reduction in prostaglandin formation and, secondarily, in renal blood flow, which may precipitate overt renal decompensation.

Patients at greatest riskof this reaction are those with impaired renal function, heart failure,liver dysfunction, those taking diuretics and ACE inhibitors, and the elderly.

Discontinuation of NSAID therapy is usually followed by recovery to the pretreatment state.

Advanced Renal Disease No information is available from controlled clinical studies regarding the use of Ibuprofen tablets in patients with advanced renal disease.Therefore, treatment with IBU tablets is not recommended in these patients with advanced renal disease.

If IBU tablet therapy must be initiated, close monitoring of the patients renal function is advisable.

Anaphylactoid Reactions As with other NSAIDs, anaphylactoid reactions may occur inpatients without known prior exposure to IBU tablets.

IBU tablets should not be given to patients with the aspirin triad.

This symptom complex typically occurs in asthmatic patients who experience rhinitis with or without nasal polyps, or who exhibit severe, potentially fatal bronchospasm after taking aspirin or other NSAIDs (see CONTRAINDICATIONS and PRECAUTIONS, Preexisting Asthma) .

Emergency help should be sought in cases where an anaphylactoidreaction occurs.

Skin Reactions NSAIDs, including IBU tablets, can cause serious skin adverse events such as exfoliative dermatitis, Stevens-Johnson Syndrome(SJS), and toxic epidermal necrolysis (TEN), which can be fatal.These serious events may occur without warning.

Patients should be informed about the signs and symptoms of serious skin manifestations and use of the drug should be discontinued at the first appearance of skin rash or any other sign of hypersensitivity.

Pregnancy In late pregnancy, as with other NSAIDs, IBU tablets should beavoided because it may cause premature closure of the ductus arteriosus.

DRUG INTERACTIONS

Drug Interactions ACE-inhibitors: Reports suggest that NSAIDs may diminish the antihypertensiveeffect of ACE-inhibitors.

This interaction should be given considerationin patients taking NSAIDs concomitantly with ACE-inhibitors.

Aspirin When IBU tablets are administered with aspirin, its protein bindingis reduced, although the clearance of free IBU tablets is notaltered.

The clinical significance of this interaction is not known; however,as with other NSAIDs, concomitant administration of ibuprofenand aspirin is not generally recommended because of the potential forincreased adverse effects.

OVERDOSAGE

Approximately 11⁄2 hours after the reported ingestion of from 7 to10 Ibuprofen tablets (400 mg), a 19-month old child weighing 12 kgwas seen in the hospital emergency room, apneic and cyanotic,responding only to painful stimuli.

This type of stimulus, however,was sufficient to induce respiration.

Oxygen and parenteral fluidswere given; a greenish-yellow fluid was aspirated from the stomachwith no evidence to indicate the presence of ibuprofen.

Two hoursafter ingestion the child’s condition seemed stable; she still respondedonly to painful stimuli and continued to have periods of apnea lastingfrom 5 to 10 seconds.

She was admitted to intensive care andsodium bicarbonate was administered as well as infusions of dextroseand normal saline.

By four hours post-ingestion she could bearoused easily, sit by herself and respond to spoken commands.Blood level of ibuprofen was 102.9 μg/mL approximately 81⁄2 hoursafter accidental ingestion.

At 12 hours she appeared to be completelyrecovered.

In two other reported cases where children (each weighingapproximately 10 kg) accidentally, acutely ingested approximately120 mg/kg, there were no signs of acute intoxication or late sequelae.Blood level in one child 90 minutes after ingestion was 700 μg/mL —about 10 times the peak levels seen in absorption-excretion studies.A 19-year old male who had taken 8,000 mg of ibuprofen over aperiod of a few hours complained of dizziness, and nystagmus wasnoted.

After hospitalization, parenteral hydration and three days bedrest, he recovered with no reported sequelae.

In cases of acute overdosage, the stomach should be emptied byvomiting or lavage, though little drug will likely be recovered if morethan an hour has elapsed since ingestion.

Because the drug is acidicand is excreted in the urine, it is theoretically beneficial to administeralkali and induce diuresis.

In addition to supportive measures, the useof oral activated charcoal may help to reduce the absorption andreabsorption of Ibuprofen tablets.

DESCRIPTION

IBU tablets contain the active ingredient ibuprofen, which is (±) -2 – ( p – isobutylphenyl) propionic acid.

Ibuprofen is a white powde rwith a melting point of 74-77° C and is very slightly soluble in water(<1 mg/mL) and readily soluble in organic solvents such as ethanol and acetone.

The structural formula is represented below: IBU, a nonsteroidal anti-inflammatory drug (NSAID), is availablein 400 mg, 600 mg, and 800 mg tablets for oral administration.Inactive ingredients: carnauba wax, colloidal silicon dioxide,croscarmellose sodium, hypromellose, magnesium stearate, microcrystallinecellulose, polydextrose, polyethylene glycol, polysorbate,titanium dioxide.

strucuture

HOW SUPPLIED

IBU tablets are available in the following strengths, colors and sizes: 400 mg (white, oval, debossed 4I) Boxes of 25×30 UD 750 NDC 63739-442-01 Boxes of 10×10 UD 100 NDC 63739-442-10 600 mg (white, caplet, debossed 6I) Boxes of 25×30 UD 750 NDC 63739-443-01 Boxes of 10×10 UD 100 NDC 63739-443-10 800 mg (white, caplet, debossed 8I) Boxes of 25×30 UD 750 NDC 63739-444-01 Boxes of 10×10 UD 100 NDC 63739-444-10 Store at room temperature.

Avoid excessive heat 40°C (104°F).

Manufactured by: Dr.

Reddy’s Laboratories Louisiana, LLC Shreveport, LA 71106 Distributed by: McKesson Packaging Services a business unit of McKesson Corporation 7101 Weddington Rd.

Concord, NC 28027 Issued February, 2010 IS-442-M55-03-B-R2

INDICATIONS AND USAGE

Carefully consider the potential benefits and risks of Ibuprofentablets and other treatment options before deciding to use Ibuprofen.Use the lowest effective dose for the shortest duration consistent withindividual patient treatment goals (see WARNINGS ).

IBU tablets are indicated for relief of the signs and symptoms of rheumatoid arthritis and osteoarthritis.

IBU tablets are indicated for relief of mild to moderate pain.

IBU tablets are also indicated for the treatment of primary dysmenorrhea.

Controlled clinical trials to establish the safety and effectiveness of IBU tablets in children have not been conducted.

PREGNANCY

Pregnancy In late pregnancy, as with other NSAIDs, IBU tablets should beavoided because it may cause premature closure of the ductus arteriosus.

BOXED WARNING

Cardiovascular Risk • NSAIDs may cause an increased risk of serious cardiovascularthrombotic events, myocardial infarction, and stroke,which can be fatal.

This risk may increase with duration ofuse.

Patients with cardiovascular disease or risk factors forcardiovascular disease may be at greater risk (See WARNINGS ).

• IBU tablets are contraindicated for treatment of peri-operativepain in the setting of coronary artery bypass graft (CABG)surgery (See WARNINGS ).

Gastrointestinal Risk • NSAIDS cause an increased risk of serious gastrointestinaladverse events including bleeding, ulceration, and perforationof the stomach or intestines, which can be fatal.

These eventscan occur at any time during use and without warning symptoms.Elderly patients are at greater risk for serious gastrointestinalevents.

(See WARNINGS ).

INFORMATION FOR PATIENTS

Information for Patients Patients should be informed of the following information beforeinitiating therapy with an NSAID and periodically during the course ofongoing therapy.

Patients should also be encouraged to read theNSAID Medication Guide that accompanies each prescription dispensed • IBU tablets like other NSAIDs, may cause serious CV side effects,such as MI or stroke, which may result in hospitalization and evendeath.

Although serious CV events can occur without warningsymptoms, patients should be alert for the signs and symptoms ofchest pain, shortness of breath, weakness, slurring of speech, andshould ask for medical advice when observing any indicative sign orsymptoms.

Patients should be apprised of the importance of thisfollow-up (see WARNINGS, Cardiovascular Effects ).

• IBU tablets, like other NSAIDs, can cause GI discomfort and, rarely,serious GI side effects, such as ulcers and bleeding, which mayresult in hospitalization and even death.

Although serious GI tractulcerations and bleeding can occur without warning symptoms,patients should be alert for the signs and symptoms of ulcerationsand bleeding, and should ask for medical advice when observingany indicative signs or symptoms including epigastric pain, dyspepsia,melena, and hematemesis.

Patients should be apprised of theimportance of this follow-up (see WARNINGS, Gastrointestinal Effects-Risk of Ulceration , Bleeding and Perforation) .

• IBU tablets, like other NSAIDs, can cause serious skin side effectssuch as exfoliative dermatitis, SJS and TEN, which may result inhospitalization and even death.

Although serious skin reactions mayoccur without warning, patients should be alert for the signs andsymptoms of skin rash and blisters, fever, or other signs of hypersensitivitysuch as itching, and should ask for medical advice whenobserving any indicative sign or symptoms.

Patients should beadvised to stop the drug immediately if they develop any type ofrash and contact their physicians as soon as possible.

• Patients should promptly report signs or symptoms of unexplainedweight gain or edema to their physicians.

• Patients should be informed of the warning signs and symptoms ofhepatotoxicity (e.g., nausea, fatigue, lethargy, pruritus, jaundice,right upper quadrant tenderness and “flu-like” symptoms).

If theseoccur, patients should be instructed to stop therapy and seek immediatemedical therapy.

• Patients should be informed of the signs of an anaphylactoid reaction(e.g.

difficulty breathing, swelling of the face or throat).

If theseoccur, patients should be instructed to seek immediate emergencyhelp (see WARNINGS) .

• In late pregnancy, as with other NSAIDs, IBU tablets should beavoided because it may cause premature closure of the ductus arteriosus.

DOSAGE AND ADMINISTRATION

Carefully consider the potential benefits and risks of IBU tabletsand other treatment options before deciding to use IBU tablets.

Usethe lowest effective dose for the shortest duration consistent withindividual patient treatment goals (see WARNINGS).

After observing the response to initial therapy with IBU tablets, thedose and frequency should be adjusted to suit an individual patient’sneeds.Do not exceed 3200 mg total daily dose.

If gastrointestinal complaintsoccur, administer IBU tablets with meals or milk.

Rheumatoid arthritis and osteoarthritis, including flare-ups ofchronic disease: Suggested Dosage: 1200 mg-3200 mg daily (400 mg, 600 mg or800 mg tid or qid).

Individual patients may show a better responseto 3200 mg daily, as compared with 2400 mg, although in well-controlledclinical trials patients on 3200 mg did not show a better meanresponse in terms of efficacy.

Therefore, when treating patients with3200 mg/day, the physician should observe sufficient increased clinicalbenefits to offset potential increased risk.The dose should be tailored to each patient, and may be loweredor raised depending on the severity of symptoms either at time of initiatingdrug therapy or as the patient responds or fails to respond.In general, patients with rheumatoid arthritis seem to require higherdoses of IBU tablets than do patients with osteoarthritis.

The smallest dose of IBU tablets that yields acceptable controlshould be employed.

A linear blood level dose-response relationshipexists with single doses up to 800 mg (See CLINICAL PHARMACOLOGYfor effects of food on rate of absorption).

The availability of three tablet strengths facilitates dosage adjustment.In chronic conditions, a therapeutic response to therapy with IBU tablets is sometimes seen in a few days to a week but most often isobserved by two weeks.

After a satisfactory response has beenachieved, the patient’s dose should be reviewed and adjusted asrequired.

Mild to moderate pain: 400 mg every 4 to 6 hours as necessaryfor relief of pain.In controlled analgesic clinical trials, doses of Ibuprofen tabletsgreater than 400 mg were no more effective than the 400 mg dose.

Dysmenorrhea: For the treatment of dysmenorrhea, beginningwith the earliest onset of such pain, IBU tablets should be given in adose of 400 mg every 4 hours as necessary for the relief of pain.

Bayer Aspirin 500 MG Oral Tablet

Generic Name: BAYER ASPIRIN EXTRA STRENGTH
Brand Name: BAYER Aspirin Extra Strength Caplets
  • Substance Name(s):
  • ASPIRIN

WARNINGS

Warnings Reye’s syndrome : Children and teenagers who have or are recovering from chicken pox or flu-like symptoms should not use this product.

When using this product, if changes in behavior with nausea and vomiting occur, consult a doctor because these symptoms could be an early sign of Reye’s syndrome, a rare but serious illness.

Allergy alert : Aspirin may cause a severe allergic reaction which may include: hives facial swelling asthma (wheezing) shock Stomach bleeding warni ng: This product contains an NSAID, which may cause severe stomach bleeding.

The chance is higher if you are age 60 or older have had stomach ulcers or bleeding problems take a blood thinning (anticoagulant) or steroid drug take other drugs containing prescription or nonprescription NSAIDs (aspirin, ibuprofen, naproxen, or others) have 3 or more alcoholic drinks every day while using this product take more or for a longer time than directed

INDICATIONS AND USAGE

Uses temporarily relieves headache pain and fever of colds muscle pain menstrual pain toothache minor pain of arthritis

INACTIVE INGREDIENTS

Inactive ingredients carnauba wax, corn starch, D&C red #7 calcium lake, FD&C blue #2 aluminum lake, FD&C red #40 aluminum lake, hypromellose, powdered cellulose, propylene glycol, shellac, titanium dioxide, triacetin

PURPOSE

Pain reliever/fever reducer

KEEP OUT OF REACH OF CHILDREN

Keep out of reach of children.

In case of overdose, get medical help or contact a Poison Control Center right away.

ASK DOCTOR

Ask a doctor before use if stomach bleeding warning applies to you you have a history of stomach problems, such as heartburn you have high blood pressure, heart disease, liver cirrhosis, or kidney disease you are taking a diuretic you have asthma

OTHER SAFETY INFORMATION

Other Information save carton for full directions and warnings store at room temperature.

Avoid excessive heat above 40ºC (104ºF).

DOSAGE AND ADMINISTRATION

Directions drink a full glass of water with each dose adults and children 12 years and over: take 1 or 2 caplets every 4 to 6 hours not to exceed 8 caplets in 24 hours children under 12 years: consult a doctor

PREGNANCY AND BREAST FEEDING

If pregnant or breast-feedin g, ask a health professional before use.

It is especially important not to use aspirin during the last 3 months of pregnancy unless definitely directed to do so by a doctor because it may cause problems in the unborn child or complications during delivery.

DO NOT USE

Do not use if you are allergic to aspirin or any other pain reliever/fever reducer if you have ever had an allergic reaction to this product or any of its ingredients

STOP USE

Stop use and ask a doctor if an allergic reaction occurs.

Seek medical help right away.

you experience any of the following signs of stomach bleeding: ● feel faint ● vomit blood ● have bloody or black stools ● have stomach pain that does not get better pain gets worse or lasts more than 10 days redness or swelling is present fever lasts more than 3 days new symptoms occur ringing in the ears or a loss of hearing occurs

ACTIVE INGREDIENTS

Active ingredient (in each caplet) Aspirin 500 mg (NSAID) nonsteroidal anti-inflammatory drug

ASK DOCTOR OR PHARMACIST

Ask a doctor or pharmacist before use if you are taking a prescription drug for gout diabetes arthritis

Risperidone 4 MG Oral Tablet

Generic Name: RISPERIDONE
Brand Name: RISPERIDONE
  • Substance Name(s):
  • RISPERIDONE

DRUG INTERACTIONS

7 Carbamazepine and other enzyme inducers decrease plasma concentrations of risperidone.

Increase the risperidone tablets dose up to double the patient’s usual dose.

Titrate slowly.

( 7.1 ) Fluoxetine, paroxetine, and other CYP 2D6 enzyme inhibitors increase plasma concentrations of risperidone.

Reduce the initial dose.

Do not exceed a final dose of 8 mg per day of risperidone tablets.

( 7.1 ) 7.1 Pharmacokinetic-related Interactions The dose of risperidone tablets should be adjusted when used in combination with CYP2D6 enzyme inhibitors (e.g., fluoxetine, and paroxetine) and enzyme inducers (e.g., carbamazepine) [see Table 18 and Dosage and Administration (2.5) ].

Dose adjustment is not recommended for risperidone tablets when co-administered with ranitidine, cimetidine, amitriptyline, or erythromycin [see Table 18 ] .

Table 18.

Summary of Effect of Coadministered Drugs on Exposure to Active Moiety (Risperidone + 9-Hydroxy-Risperidone) in Healthy Subjects or Patients with Schizophrenia *Change relative to reference Coadministered Drug Dosing Schedule Effect on Active Moiety (Risperidone + 9- Hydroxy- Risperidone (Ratio*) Risperidone Dose Recommendation Coadministered Drug Risperidone AUC C max Enzyme (CYP2D6) inhibitors Fluoxetine 20 mg/day 2 or 3 mg twice daily 1.4 1.5 Re-evaluate dosing.

Do not exceed 8 mg/day Paroxetine 10 mg/day 4 mg/day 1.3 – Re-evaluate dosing.

Do not exceed 8 mg/day 20 mg/day 4 mg/day 1.6 – 40 mg/day 4 mg/day 1.8 – Enzyme (CYP3A/ PgP inducers) Inducers Carbamazepine 573 ± 168 mg/day 3 mg twice daily 0.51 0.55 Titrate dose upwards.

Do not exceed twice the patient’s usual dose Enzyme (CYP3A) inhibitors Ranitidine 150 mg twice daily 1 mg single dose 1.2 1.4 Dose adjustment not needed Cimetidine 400 mg twice daily 1 mg single dose 1.1 1.3 Dose adjustment not needed Erythromycin 500 mg four times daily 1 mg single dose 1.1 0.94 Dose adjustment not needed Other Drugs Amitriptyline 50 mg twice daily 3 mg twice daily 1.2 1.1 Dose adjustment not Needed Effect of Risperidone on other drugs Lithium Repeated oral doses of risperidone tablets (3 mg twice daily) did not affect the exposure (AUC) or peak plasma concentrations (C max ) of lithium (n=13).

Dose adjustment for lithium is not recommended.

Valproate Repeated oral doses of risperidone tablets (4 mg once daily) did not affect the pre-dose or average plasma concentrations and exposure (AUC) of valproate (1000 mg/day in three divided doses) compared to placebo (n=21).

However, there was a 20% increase in valproate peak plasma concentration (C max ) after concomitant administration of risperidone tablets.

Dose adjustment for valproate is not recommended.

Digoxin Risperidone tablets (0.25 mg twice daily) did not show a clinically relevant effect on the pharmacokinetics of digoxin.

Dose adjustment for digoxin is not recommended.

7.2 Pharmacodynamic-related Interactions Centrally Acting Drugs and Alcohol Given the primary CNS effects of risperidone, caution should be used when risperidone tablets are taken in combination with other centrally acting drugs and alcohol.

Drugs with Hypotensive Effects Because of its potential for inducing hypotension, risperidone tablets may enhance the hypotensive effects of other therapeutic agents with this potential.

Levodopa and Dopamine Agonists Risperidone tablets may antagonize the effects of levodopa and dopamine agonists.

Methylphenidate Concomitant use with methylphenidate, when there is change in dosage of either medication, may increase the risk of extrapyramidal symptoms (EPS).

Monitor for symptoms of EPS with concomitant use of risperidone tablets and methylphenidate [see Adverse Reactions ( 6.2 )].

Clozapine Chronic administration of clozapine with risperidone tablets may decrease the clearance of risperidone.

OVERDOSAGE

10 10.1 Human Experience Premarketing experience included eight reports of acute risperidone tablets overdosage with estimated doses ranging from 20 to 300 mg and no fatalities.

In general, reported signs and symptoms were those resulting from an exaggeration of the drug’s known pharmacological effects, i.e., drowsiness and sedation, tachycardia and hypotension, and extrapyramidal symptoms.

One case, involving an estimated overdose of 240 mg, was associated with hyponatremia, hypokalemia, prolonged QT, and widened QRS.

Another case, involving an estimated overdose of 36 mg, was associated with a seizure.

Postmarketing experience includes reports of acute risperidone tablets overdosage, with estimated doses of up to 360 mg.

In general, the most frequently reported signs and symptoms are those resulting from an exaggeration of the drug’s known pharmacological effects, i.e., drowsiness, sedation, tachycardia, hypotension, and extrapyramidal symptoms.

Other adverse reactions reported since market introduction related to risperidone tablets overdose include prolonged QT interval and convulsions.

Torsade de pointes has been reported in association with combined overdose of risperidone tablets and paroxetine.

10.2 Management of Overdosage For the most up to date information on the management of risperidone tablets overdosage, contact a certified poison control center (1-800-222-1222 or www.poison.org).

Provide supportive care including close medical supervision and monitoring.

Treatment should consist of general measures employed in the management of overdosage with any drug.

Consider the possibility of multiple drug overdosage.

Ensure an adequate airway, oxygenation, and ventilation.

Monitor cardiac rhythm and vital signs.

Use supportive and symptomatic measures.

There is no specific antidote to risperidone tablets.

DESCRIPTION

11 Risperidone tablets, USP contain risperidone USP, an atypical antipsychotic belonging to the chemical class of benzisoxazole derivatives.

The chemical designation is 3-[2-[4-(6-fluoro-1,2- benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one.

Its molecular formula is C 23 H 27 FN 4 O 2 and its molecular weight is 410.49.

The structural formula is: Risperidone USP is a white to slightly beige powder.

It is practically insoluble in water, freely soluble in methylene chloride, and soluble in methanol and 0.1 N HCl.

Risperidone tablets, USP are for oral administration and available in 0.25 mg (orange), 0.5 mg (orange), 1 mg (white), 2 mg (yellow), 3 mg (orange), and 4 mg (brown) strengths.

Risperidone tablets contain the following inactive ingredients: colloidal silicon dioxide, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, propylene glycol (except 1 mg), sodium lauryl sulphate, sodium starch glycolate and polyethylene glycol (1 mg).

Tablets of 0.25 mg, 0.5 mg, 2 mg, 3 mg, and 4 mg also contain talc and titanium dioxide.

0.25 mg, 0.5 mg, and 3 mg tablets contain FD&C Yellow # 6 aluminum lake, the 2 mg tablets contain yellow iron oxide; the 4 mg tablets contain iron oxide red.

structure

CLINICAL STUDIES

14 14.1 Schizophrenia Adults Short-Term Efficacy The efficacy of risperidone tablets in the treatment of schizophrenia was established in four short-term (4- to 8-week) controlled trials of psychotic inpatients who met DSM-III-R criteria for schizophrenia.

Several instruments were used for assessing psychiatric signs and symptoms in these studies, among them the Brief Psychiatric Rating Scale (BPRS), a multi-item inventory of general psychopathology traditionally used to evaluate the effects of drug treatment in schizophrenia.

The BPRS psychosis cluster (conceptual disorganization, hallucinatory behavior, suspiciousness, and unusual thought content) is considered a particularly useful subset for assessing actively psychotic schizophrenic patients.

A second traditional assessment, the Clinical Global Impression (CGI), reflects the impression of a skilled observer, fully familiar with the manifestations of schizophrenia, about the overall clinical state of the patient.

In addition, the Positive and Negative Syndrome Scale (PANSS) and the Scale for Assessing Negative Symptoms (SANS) were employed.

The results of the trials follow: In a 6-week, placebo-controlled trial (n=160) involving titration of risperidone tablets in doses up to 10 mg/day (twice-daily schedule), risperidone tablets were generally superior to placebo on the BPRS total score, on the BPRS psychosis cluster, and marginally superior to placebo on the SANS.

In an 8-week, placebo-controlled trial (n=513) involving 4 fixed doses of risperidone tablets (2 mg/day, 6 mg/day, 10 mg/day, and 16 mg/day, on a twice-daily schedule), all 4 risperidone tablets groups were generally superior to placebo on the BPRS total score, BPRS psychosis cluster, and CGI severity score; the 3 highest risperidone tablets dose groups were generally superior to placebo on the PANSS negative subscale.

The most consistently positive responses on all measures were seen for the 6 mg dose group, and there was no suggestion of increased benefit from larger doses.

In an 8-week, dose comparison trial (n=1356) involving 5 fixed doses of risperidone tablets (1 mg/day, 4 mg/day, 8 mg/day, 12 mg/day, and 16 mg/day, on a twice-daily schedule), the four highest risperidone tablets dose groups were generally superior to the 1 mg risperidone tablets dose group on BPRS total score, BPRS psychosis cluster, and CGI severity score.

None of the dose groups were superior to the 1 mg group on the PANSS negative subscale.

The most consistently positive responses were seen for the 4 mg dose group.

In a 4-week, placebo-controlled dose comparison trial (n=246) involving 2 fixed doses of risperidone tablets (4 and 8 mg/day on a once-daily schedule), both risperidone tablets dose groups were generally superior to placebo on several PANSS measures, including a response measure (>20% reduction in PANSS total score), PANSS total score, and the BPRS psychosis cluster (derived from PANSS).

The results were generally stronger for the 8 mg than for the 4 mg dose group.

Long-Term Efficacy In a longer-term trial, 365 adult outpatients predominantly meeting DSM-IV criteria for schizophrenia and who had been clinically stable for at least 4 weeks on an antipsychotic medication were randomized to risperidone tablets (2-8 mg/day) or to an active comparator, for 1 to 2 years of observation for relapse.

Patients receiving risperidone tablets experienced a significantly longer time to relapse over this time period compared to those receiving the active comparator.

Pediatrics The efficacy of risperidone tablets in the treatment of schizophrenia in adolescents aged 13–17 years was demonstrated in two short-term (6 and 8 weeks), double-blind controlled trials.

All patients met DSM-IV diagnostic criteria for schizophrenia and were experiencing an acute episode at time of enrollment.

In the first trial (study #1), patients were randomized into one of three treatment groups: Risperidone tablets 1-3 mg/day (n = 55, mean modal dose = 2.6 mg), risperidone tablets 4-6 mg/day (n = 51, mean modal dose = 5.3 mg), or placebo (n = 54).

In the second trial (study #2), patients were randomized to either risperidone tablets 0.15-0.6 mg/day (n = 132, mean modal dose = 0.5 mg) or risperidone tablets 1.5–6 mg/day (n = 125, mean modal dose = 4 mg).

In all cases, study medication was initiated at 0.5 mg/day (with the exception of the 0.15-0.6 mg/day group in study #2, where the initial dose was 0.05 mg/day) and titrated to the target dosage range by approximately Day 7.

Subsequently, dosage was increased to the maximum tolerated dose within the target dose range by Day 14.

The primary efficacy variable in all studies was the mean change from baseline in total PANSS score.

Results of the studies demonstrated efficacy of risperidone tablets in all dose groups from 1-6 mg/day compared to placebo, as measured by significant reduction of total PANSS score.

The efficacy on the primary parameter in the 1-3 mg/day group was comparable to the 4-6 mg/day group in study #1, and similar to the efficacy demonstrated in the 1.5–6 mg/day group in study #2.

In study #2, the efficacy in the 1.5-6 mg/day group was statistically significantly greater than that in the 0.15-0.6 mg/day group.

Doses higher than 3 mg/day did not reveal any trend towards greater efficacy.

14.2 Bipolar Mania – Monotherapy Adults The efficacy of risperidone tablets in the treatment of acute manic or mixed episodes was established in two short-term (3-week) placebo-controlled trials in patients who met the DSM-IV criteria for Bipolar I Disorder with manic or mixed episodes.

These trials included patients with or without psychotic features.

The primary rating instrument used for assessing manic symptoms in these trials was the Young Mania Rating Scale (YMRS), an 11-item clinician-rated scale traditionally used to assess the degree of manic symptomatology (irritability, disruptive/aggressive behavior, sleep, elevated mood, speech, increased activity, sexual interest, language/thought disorder, thought content, appearance, and insight) in a range from 0 (no manic features) to 60 (maximum score).

The primary outcome in these trials was change from baseline in the YMRS total score.

The results of the trials follow: In one 3-week placebo-controlled trial (n=246), limited to patients with manic episodes, which involved a dose range of risperidone tablets 1-6 mg/day, once daily, starting at 3 mg/day (mean modal dose was 4.1 mg/day), risperidone tablets were superior to placebo in the reduction of YMRS total score.

In another 3-week placebo-controlled trial (n=286), which involved a dose range of 1-6 mg/day, once daily, starting at 3 mg/day (mean modal dose was 5.6 mg/day), risperidone tablets were superior to placebo in the reduction of YMRS total score.

Pediatrics The efficacy of risperidone tablets in the treatment of mania in children or adolescents with Bipolar I disorder was demonstrated in a 3-week, randomized, double-blind, placebo-controlled, multicenter trial including patients ranging in ages from 10 to 17 years who were experiencing a manic or mixed episode of bipolar I disorder.

Patients were randomized into one of three treatment groups: Risperidone tablets 0.5-2.5 mg/day (n = 50, mean modal dose = 1.9 mg), risperidone tablets 3-6 mg/day (n = 61, mean modal dose = 4.7 mg), or placebo (n = 58).

In all cases, study medication was initiated at 0.5 mg/day and titrated to the target dosage range by Day 7, with further increases in dosage to the maximum tolerated dose within the targeted dose range by Day 10.

The primary rating instrument used for assessing efficacy in this study was the mean change from baseline in the total YMRS score.

Results of this study demonstrated efficacy of risperidone tablets in both dose groups compared with placebo, as measured by significant reduction of total YMRS score.

The efficacy on the primary parameter in the 3-6 mg/day dose group was comparable to the 0.5-2.5 mg/day dose group.

Doses higher than 2.5 mg/day did not reveal any trend towards greater efficacy.

14.3 Bipolar Mania – Adjunctive Therapy with Lithium or Valproate The efficacy of risperidone tablets with concomitant lithium or valproate in the treatment of acute manic or mixed episodes was established in one controlled trial in adult patients who met the DSM-IV criteria for Bipolar I Disorder.

This trial included patients with or without psychotic features and with or without a rapid-cycling course.

In this 3-week placebo-controlled combination trial, 148 in- or outpatients on lithium or valproate therapy with inadequately controlled manic or mixed symptoms were randomized to receive risperidone tablets, placebo, or an active comparator, in combination with their original therapy.

Risperidone tablets, in a dose range of 1-6 mg/day, once daily, starting at 2 mg/day (mean modal dose of 3.8 mg/day), combined with lithium or valproate (in a therapeutic range of 0.6 mEq/L to 1.4 mEq/L or 50 mcg/mL to 120 mcg/mL, respectively) was superior to lithium or valproate alone in the reduction of YMRS total score.

In a second 3-week placebo-controlled combination trial, 142 in- or outpatients on lithium, valproate, or carbamazepine therapy with inadequately controlled manic or mixed symptoms were randomized to receive risperidone tablets or placebo, in combination with their original therapy.

Risperidone tablets, in a dose range of 1-6 mg/day, once daily, starting at 2 mg/day (mean modal dose of 3.7 mg/day), combined with lithium, valproate, or carbamazepine (in therapeutic ranges of 0.6 mEq/L to 1.4 mEq/L for lithium, 50 mcg/mL to 125 mcg/mL for valproate, or 4-12 mcg/mL for carbamazepine, respectively) was not superior to lithium, valproate, or carbamazepine alone in the reduction of YMRS total score.

A possible explanation for the failure of this trial was induction of risperidone and 9-hydroxyrisperidone clearance by carbamazepine, leading to subtherapeutic levels of risperidone and 9-hydroxyrisperidone.

14.4 Irritability Associated with Autistic Disorder Short-Term Efficacy The efficacy of risperidone tablets in the treatment of irritability associated with autistic disorder was established in two 8-week, placebo-controlled trials in children and adolescents (aged 5 to 16 years) who met the DSM-IV criteria for autistic disorder.

Over 90% of these subjects were under 12 years of age and most weighed over 20 kg (16-104.3 kg).

Efficacy was evaluated using two assessment scales: the Aberrant Behavior Checklist (ABC) and the Clinical Global Impression – Change (CGI-C) scale.

The primary outcome measure in both trials was the change from baseline to endpoint in the Irritability subscale of the ABC (ABC-I).

The ABC-I subscale measured the emotional and behavioral symptoms of autism, including aggression towards others, deliberate self-injuriousness, temper tantrums, and quickly changing moods.

The CGI-C rating at endpoint was a co-primary outcome measure in one of the studies.

The results of these trials are as follows: In one of the 8-week, placebo-controlled trials, children and adolescents with autistic disorder (n=101), aged 5 to 16 years, received twice daily doses of placebo or risperidone tablets 0.5-3.5 mg/day on a weight-adjusted basis.

Risperidone tablets, starting at 0.25 mg/day or 0.5 mg/day depending on baseline weight (< 20 kg and ≥ 20 kg, respectively) and titrated to clinical response (mean modal dose of 1.9 mg/day, equivalent to 0.06 mg/kg/day), significantly improved scores on the ABC-I subscale and on the CGI-C scale compared with placebo.

In the other 8-week, placebo-controlled trial in children with autistic disorder (n=55), aged 5 to 12 years, risperidone tablets 0.02 to 0.06 mg/kg/day given once or twice daily, starting at 0.01 mg/kg/day and titrated to clinical response (mean modal dose of 0.05 mg/kg/day, equivalent to 1.4 mg/day), significantly improved scores on the ABC-I subscale compared with placebo.

A third trial was a 6-week, multicenter, randomized, double blind, placebo-controlled, fixed-dose study to evaluate the efficacy and safety of a lower than recommended dose of risperidone in subjects (N=96) 5 to 17 years of age with autistic disorder (defined by DSM-IV criteria) and associated irritability and related behavioral symptoms.

Approximately 77% of patients were younger than 12 years of age (mean age = 9), and 88% were male.

Most patients (73%) weighed less than 45 kg (mean weight = 40 kg).

Approximately 90% of patients were antipsychotic-naïve before entering the study.

There were two weight-based, fixed doses of risperidone (high-dose and low-dose).

The high dose was 1.25 mg per day for patients weighing 20 to < 45 kg, and it was 1.75 mg per day for patients weighing ≥ 45 kg.

The low dose was 0.125 mg per day for patients weighing 20 to < 45 kg, and it was 0.175 mg per day for patients weighing ≥ 45 kg.

The dose was administered once daily in the morning, or in the evening if sedation occurred.

The primary efficacy endpoint was the mean change in the Aberrant Behavior Checklist – Irritability subscale (ABC-I) score from baseline to the end of Week 6.

The study demonstrated the efficacy of high-dose risperidone, as measured by the mean change in ABC-I score.

It did not demonstrate efficacy for low-dose risperidone.

The mean baseline ABC-I scores were 29 in the placebo group (n = 35), 27 in the risperidone low-dose group (n = 30), and 28 in the risperidone high-dose group (n = 31).

The mean changes in ABC-I scores were -3.5, -7.4, and -12.4 in the placebo, low-dose, and high-dose group respectively.

The results in the high-dose group were statistically significant (p< 0.001) but not in the low-dose group (p=0.164).

Long-Term Efficacy Following completion of the first 8-week double-blind study, 63 patients entered an open-label study extension where they were treated with risperidone tablets for 4 or 6 months (depending on whether they received risperidone tablets or placebo in the double-blind study).

During this open-label treatment period, patients were maintained on a mean modal dose of risperidone tablets of 1.8-2.1 mg/day (equivalent to 0.05 – 0.07 mg/kg/day).

Patients who maintained their positive response to risperidone tablets (response was defined as ≥ 25% improvement on the ABC-I subscale and a CGI-C rating of ‘much improved’ or ‘very much improved’) during the 4-6 month open-label treatment phase for about 140 days, on average, were randomized to receive risperidone tablets or placebo during an 8-week, double-blind withdrawal study (n=39 of the 63 patients).

A pre-planned interim analysis of data from patients who completed the withdrawal study (n=32), undertaken by an independent Data Safety Monitoring Board, demonstrated a significantly lower relapse rate in the risperidone tablets group compared with the placebo group.

Based on the interim analysis results, the study was terminated due to demonstration of a statistically significant effect on relapse prevention.

Relapse was defined as ≥ 25% worsening on the most recent assessment of the ABC-I subscale (in relation to baseline of the randomized withdrawal phase).

HOW SUPPLIED

16 /STORAGE AND HANDLING 16.1 How Supplied Risperidone Tablets Risperidone Tablets, USP 0.25 mg are orange, circular, biconvex, film-coated tablets, engraved with ‘RI1’ on one side and plain on other and are supplied as follows: Bottles of 60’s with child-resistant closure NDC 27241-002-06 Bottles of 500’s NDC 27241-002-50 Risperidone Tablets, USP 0.5 mg are orange, circular, biconvex, film-coated tablets, engraved with ‘RI2’ on one side and plain on other and are supplied as follows: Bottles of 60’s with child-resistant closure NDC 27241-003-06 Bottles of 500’s NDC 27241-003-50 Risperidone Tablets, USP 1 mg are white to off white, circular, biconvex, film-coated tablets, engraved with ‘RI3’ on one side and plain on other and are supplied as follows: Bottles of 60’s with child-resistant closure NDC 27241-001-06 Bottles of 500’s NDC 27241-001-50 Risperidone Tablets, USP 2 mg are yellow, circular, biconvex film-coated tablets, engraved with ‘RI4’ on one side and plain on other and are supplied as follows: Bottles of 60’s with child-resistant closure NDC 27241-004-06 Bottles of 500’s NDC 27241-004-50 Risperidone Tablets, USP 3 mg are orange, capsule shaped, biconvex film-coated tablets, engraved with ‘RI5’ on one side and plain on other and are supplied as follows: Bottles of 60’s with child-resistant closure NDC 27241-005-06 Bottles of 500’s NDC 27241-005-50 Risperidone Tablets, USP 4 mg are brown, ovaloid, biconvex, film-coated tablets, engraved with ‘RI6’ on one side and plain on other and are supplied as follows: Bottles of 60’s with child-resistant closure NDC 27241-006-06 Bottles of 500’s NDC 27241-006-50 16.2 Storage and Handling Risperidone tablets should be stored at 20° to 25°C (68° to 77°F); excursions permitted between 15° to 30°C (59° to 86°F) [see USP controlled room temperature].

Protect from light and moisture.

Keep out of reach of children.

RECENT MAJOR CHANGES

Warnings and Precautions ( 5.3 , 5.4 ) 2/2021

GERIATRIC USE

8.5 Geriatric Use Clinical studies of risperidone tablets in the treatment of schizophrenia did not include sufficient numbers of patients aged 65 and over to determine whether or not they respond differently than younger patients.

Other reported clinical experience has not identified differences in responses between elderly and younger patients.

In general, a lower starting dose is recommended for an elderly patient, reflecting a decreased pharmacokinetic clearance in the elderly, as well as a greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy [see Clinical Pharmacology (12.3) and Dosage & Administration (2.4 , 2.5) ] .

While elderly patients exhibit a greater tendency to orthostatic hypotension, its risk in the elderly may be minimized by limiting the initial dose to 0.5 mg twice daily followed by careful titration [see Warnings and Precautions (5.7) ] .

Monitoring of orthostatic vital signs should be considered in patients for whom this is of concern.

This drug is substantially excreted by the kidneys, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function.

Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function [see Dosage & Administration (2.4) ] .

DOSAGE FORMS AND STRENGTHS

3 Risperidone tablets, USP are available in the following strengths and colors: 0.25 mg (orange), 0.5 mg (orange), 1 mg (white), 2 mg (yellow), 3 mg (orange), and 4 mg (brown).

0.25 mg, 0.5 mg, 1 mg and 2 mg are circular shaped.

3 mg are capsule shaped and 4 mg in ovaloid shaped.

Risperidone tablets, USP are engraved with “RI1”, “RI2”, “RI3”, “RI4”, “RI5” and “RI6” on one side on “0.25”, “0.5”, “1”, “2”, “3” and “4” respectively and plain on other side.

Tablets: 0.25 mg, 0.5 mg, 1 mg, 2 mg, 3 mg, and 4 mg ( 3 )

MECHANISM OF ACTION

12.1 Mechanism of Action The mechanism of action of risperidone in schizophrenia is unclear.

The drug’s therapeutic activity in schizophrenia could be mediated through a combination of dopamine Type 2 (D 2 ) and serotonin Type 2 (5HT 2 ) receptor antagonism.

The clinical effect from risperidone results from the combined concentrations of risperidone and its major metabolite, 9-hydroxyrisperidone (paliperidone) [see Clinical Pharmacology ( 12.3 )] .

Antagonism at receptors other than D 2 and 5HT 2 may explain some of the other effects of risperidone [see Clinical Pharmacology ( 12.1 )] .

INDICATIONS AND USAGE

1 Risperidone tablets are an atypical antipsychotic indicated for: Treatment of schizophrenia ( 1.1 ) As monotherapy or adjunctive therapy with lithium or valproate, for the treatment of acute manic or mixed episodes associated with Bipolar I Disorder ( 1.2 ) Treatment of irritability associated with autistic disorder ( 1.3 ) 1.1 Schizophrenia Risperidone tablets are indicated for the treatment of schizophrenia.

Efficacy was established in 4 short-term trials in adults, 2 short-term trials in adolescents (ages 13 to 17 years), and one long-term maintenance trial in adults [see Clinical Studies (14.1) ] .

1.2 Bipolar Mania Monotherapy Risperidone tablets are indicated for the treatment of acute manic or mixed episodes associated with Bipolar I Disorder.

Efficacy was established in 2 short-term trials in adults and one short-term trial in children and adolescents (ages 10 to 17 years) [see Clinical Studies (14.2) ] .

Adjunctive Therapy Risperidone tablets adjunctive therapy with lithium or valproate is indicated for the treatment of acute manic or mixed episodes associated with Bipolar I Disorder.

Efficacy was established in one short-term trial in adults [see Clinical Studies (14.3) ] .

1.3 Irritability Associated with Autistic Disorder Risperidone tablets are indicated for the treatment of irritability associated with autistic disorder, including symptoms of aggression towards others, deliberate self-injuriousness, temper tantrums, and quickly changing moods.

Efficacy was established in 3 short-term trials in children and adolescents (ages 5 to 17 years) [see Clinical Studies (14.4) ] .

PEDIATRIC USE

8.4 Pediatric Use Approved Pediatric Indications Schizophrenia The efficacy and safety of risperidone tablets in the treatment of schizophrenia were demonstrated in 417 adolescents, aged 13 to 17 years, in two short-term (6 and 8 weeks, respectively) double-blind controlled trials [see Indications and Usage (1.1) , Adverse Reactions (6.1) , and Clinical Studies (14.1) ] .

Additional safety and efficacy information was also assessed in one long-term (6-month) open-label extension study in 284 of these adolescent patients with schizophrenia.

Safety and effectiveness of risperidone tablets in children less than 13 years of age with schizophrenia have not been established.

Bipolar I Disorder The efficacy and safety of risperidone tablets in the short-term treatment of acute manic or mixed episodes associated with Bipolar I Disorder in 169 children and adolescent patients, aged 10 to 17 years, were demonstrated in one double-blind, placebo-controlled, 3-week trial [see Indications and Usage (1.2) , Adverse Reactions (6.2) , and Clinical Studies (14.2) ] .

Safety and effectiveness of risperidone tablets in children less than 10 years of age with bipolar disorder have not been established.

Autistic Disorder The efficacy and safety of risperidone tablets in the treatment of irritability associated with autistic disorder were established in two 8-week, double-blind, placebo-controlled trials in 156 children and adolescent patients, aged 5 to 16 years [see Indications and Usage (1.3) , Adverse Reactions (6.1) and Clinical Studies (14.4) ] .

Additional safety information was also assessed in a long-term study in patients with autistic disorder, or in short- and long-term studies in more than 1200 pediatric patients with psychiatric disorders other than autistic disorder, schizophrenia, or bipolar mania who were of similar age and weight, and who received similar dosages of risperidone tablets as patients treated for irritability associated with autistic disorder.

A third study was a 6-week, multicenter, randomized, double-blind, placebo-controlled, fixed-dose study to evaluate the efficacy and safety of a lower than recommended dose of risperidone in subjects 5 to 17 years of age with autistic disorder and associated irritability, and related behavioral symptoms.

There were two weight-based, fixed doses of risperidone (high-dose and low-dose).

The high dose was 1.25 mg per day for patients weighing 20 to < 45 kg, and it was 1.75 mg per day for patients weighing ≥ 45 kg.The low dose was 0.125 mg per day for patients weighing 20 to < 45 kg, and it was 0.175 mg per day for patients weighing ≥ 45 kg.

The study demonstrated the efficacy of high-dose risperidone, but it did not demonstrate efficacy for low-dose risperidone.

Adverse Reactions in Pediatric Patients Tardive Dyskinesia In clinical trials in 1885 children and adolescents treated with risperidone tablets, 2 (0.1%) patients were reported to have tardive dyskinesia, which resolved on discontinuation of risperidone tablets treatment [see also Warnings and Precautions (5.4) ] .

Weight Gain Weight gain has been observed in children and adolescents during treatment with risperidone tablets.

Clinical monitoring of weight is recommended during treatment.

Data derive from short-term placebo-controlled trials and longer-term uncontrolled studies in pediatric patients (ages 5 to 17 years) with schizophrenia, bipolar disorder, autistic disorder, or other psychiatric disorders.

In the short-term trials (3 to 8 weeks), the mean weight gain for risperidone tablets-treated patients was 2 kg, compared to 0.6 kg for placebo-treated patients.

In these trials, approximately 33% of the risperidone tablets group had weight gain ≥7%, compared to 7% in the placebo group.

In longer-term, uncontrolled, open-label pediatric studies, the mean weight gain was 5.5 kg at Week 24 and 8 kg at Week 48 [see Warnings and Precautions (5.5) and Adverse Reactions (6.1)] .

Somnolence Somnolence was frequently observed in placebo-controlled clinical trials of pediatric patients with autistic disorder.

Most cases were mild or moderate in severity.

These events were most often of early onset with peak incidence occurring during the first two weeks of treatment, and transient with a median duration of 16 days.

Somnolence was the most commonly observed adverse reaction in the clinical trial of bipolar disorder in children and adolescents, as well as in the schizophrenia trials in adolescents.

As was seen in the autistic disorder trials, these adverse reactions were most often of early onset and transient in duration [see Adverse Reactions (6.1 , 6.2) ] .

Patients experiencing persistent somnolence may benefit from a change in dosing regimen [see Dosage & Administration (2.1 , 2.2 , and 2.3) ] .

Hyperprolactinemia Risperidone tablets have been shown to elevate prolactin levels in children and adolescents as well as in adults [see Warnings and Precautions (5.6) ] .

In double-blind, placebo-controlled studies of up to 8 weeks duration in children and adolescents (aged 5 to 17 years) with autistic disorder or psychiatric disorders other than autistic disorder, schizophrenia, or bipolar mania, 49% of patients who received risperidone tablets had elevated prolactin levels compared to 2% of patients who received placebo.

Similarly, in placebo-controlled trials in children and adolescents (aged 10 to 17 years) with bipolar disorder, or adolescents (aged 13 to 17 years) with schizophrenia, 82–87% of patients who received risperidone tablets had elevated levels of prolactin compared to 3–7% of patients on placebo.

Increases were dose-dependent and generally greater in females than in males across indications.

In clinical trials in 1885 children and adolescents, galactorrhea was reported in 0.8% of risperidone tablets-treated patients and gynecomastia was reported in 2.3% of risperidone tablets-treated patients.

Growth and Sexual Maturation The long-term effects of risperidone tablets on growth and sexual maturation have not been fully evaluated in children and adolescents.

Juvenile Animal Studies Juvenile dogs were treated with oral risperidone from weeks 10 to 50 of age (equivalent to the period of childhood through adolescence in humans), at doses of 0.31, 1.25, or 5 mg/kg/day, which are 1.2, 3.4, and 13.5 times the MRHD of 6 mg/day for children, based on mg/m 2 body surface area.

Bone length and density were decreased with a no-effect dose of 0.31 mg/kg/day; this dose produced plasma AUC of risperidone plus its active metabolite paliperidone (9-hydroxy-risperidone) that were similar to those in children and adolescents receiving the MRHD of 6 mg/day.

In addition, sexual maturation was delayed at all doses in both males and females.

The above effects showed little or no reversibility in females after a 12 week drug-free recovery period.

Juvenile rats, treated with oral risperidone from days 12 to 50 of age (equivalent to the period of infancy through adolescence in humans) showed impaired learning and memory performance (reversible only in females), with a no-effect dose of 0.63 mg/kg/day which is 0.5 times the MRHD of 6 mg/day for children, based on mg/m 2 body surface area.

This dose produced plasma AUC of risperidone plus paliperidone about half the exposure observed in humans at the MRHD.

No other consistent effects on neurobehavioral or reproductive development were seen up to the highest tested dose of 1.25 mg/kg/day which is 1 time the MRHD and produced plasma AUC of risperidone plus paliperidone that were about two thirds of those observed in humans at the MRHD of 6 mg/day for children.

PREGNANCY

8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to atypical antipsychotics, including risperidone, during pregnancy.

Healthcare providers are encouraged to register patients by contacting the National Pregnancy Registry for Atypical Antipsychotics at 1-866-961-2388 or online at http://womensmentalhealth.org/clinical-and-research-programs/pregnancyregistry/ .

Risk Summary Neonates exposed to antipsychotic drugs during the third trimester of pregnancy are at risk for extrapyramidal and/or withdrawal symptoms following delivery (see Clinical Considerations) .

Overall, available data from published epidemiologic studies of pregnant women exposed to risperidone have not established a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes (see Data).

There are risks to the mother associated with untreated schizophrenia or bipolar I disorder and with exposure to antipsychotics, including risperidone, during pregnancy (see Clinical Considerations) .

Oral administration of risperidone to pregnant mice caused cleft palate at doses 3 to 4 times the maximum recommended human dose (MRHD) with maternal toxicity observed at 4-times MRHD based on mg/m 2 body surface area.

Risperidone was not teratogenic in rats or rabbits at doses up to 6-times the MRHD based on mg/m 2 body surface area.

Increased stillbirths and decreased birth weight occurred after oral risperidone administration to pregnant rats at 1.5-times the MRHD based on mg/m 2 body surface area.

Learning was impaired in offspring of rats when the dams were dosed at 0.6-times the MRHD and offspring mortality increased at doses 0.1 to 3 times the MRHD based on mg/m 2 body surface area.

The estimated background risk of major birth defects and miscarriage for the indicated population is unknown.

All pregnancies have a background risk of birth defect, loss, or other adverse outcomes.

In the U.S.

general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.

Clinical Considerations Disease-associated maternal and/or embryo/fetal risk There is a risk to the mother from untreated schizophrenia or bipolar I disorder, including increased risk of relapse, hospitalization, and suicide.

Schizophrenia and bipolar I disorder are associated with increased adverse perinatal outcomes, including preterm birth.

It is not known if this is a direct result of the illness or other comorbid factors.

Fetal/Neonatal Adverse Reactions Extrapyramidal and/or withdrawal symptoms, including agitation, hypertonia, hypotonia, tremor, somnolence, respiratory distress, and feeding disorder have been reported in neonates who were exposed to antipsychotic drugs, including risperidone, during the third trimester of pregnancy.

These symptoms have varied in severity.

Monitor neonates for extrapyramidal and/or withdrawal symptoms and manage symptoms appropriately.

Some neonates recovered within hours or days without specific treatment; others required prolonged hospitalization.

Data Human Data Published data from observational studies, birth registries, and case reports on the use of atypical antipsychotics during pregnancy do not report a clear association with antipsychotics and major birth defects.

A prospective observational study including 6 women treated with risperidone demonstrated placental passage of risperidone.

A retrospective cohort study from a Medicaid database of 9258 women exposed to antipsychotics during pregnancy did not indicate an overall increased risk for major birth defects.

There was a small increase in the risk of major birth defects (RR=1.26, 95% CI 1.02-1.56) and of cardiac malformations (RR=1.26, 95% CI 0.88-1.81) in a subgroup of 1566 women exposed to risperidone during the first trimester of pregnancy; however, there is no mechanism of action to explain the difference in malformation rates.

Animal Data Oral administration of risperidone to pregnant mice during organogenesis caused cleft palate at 10 mg/kg/day which is 3 times the MRHD of 16 mg/day based on mg/m 2 body surface area: maternal toxicity occurred at 4 times the MRHD.

Risperidone was not teratogenic when administered orally to rats at 0.6 to 10 mg/kg/day and rabbits at 0.3 to 5 mg/kg/day, which are up to 6 times the MRHD of 16 mg/day risperidone based on mg/m 2 body surface area.

Learning was impaired in offspring of rats dosed orally throughout pregnancy at 1 mg/kg/day which is 0.6 times the MRHD and neuronal cell death increased in fetal brains of offspring of rats dosed during pregnancy at 1 and 2 mg/kg/day which are 0.6 and 1.2 times the MRHD based on mg/m 2 body surface area; postnatal development and growth of the offspring were also delayed.

Rat offspring mortality increased during the first 4 days of lactation when pregnant rats were dosed throughout gestation at 0.16 to 5 mg/kg/day which are 0.1 to 3 times the MRHD of 16 mg/day based on mg/m 2 body surface area.

It is not known whether these deaths were due to a direct effect on the fetuses or pups or to effects on the dams; a no-effect dose could not be determined.

The rate of stillbirths was increased at 2.5 mg/kg or 1.5 times the MRHD based on mg/m 2 body surface area.

In a rat cross-fostering study the number of live offspring was decreased, the number of stillbirths increased, and the birth weight was decreased in offspring of drug-treated pregnant rats.

In addition, the number of deaths increased by Day 1 among offspring of drug-treated pregnant rats, regardless of whether or not the offspring were cross-fostered.

Risperidone also appeared to impair maternal behavior in that offspring body weight gain and survival (from Day 1 to 4 of lactation) were reduced in offspring born to control but reared by drug-treated dams.

All of these effects occurred at 5 mg/kg which is 3 times the MRHD based on mg/m 2 and the only dose tested in the study.

NUSRING MOTHERS

8.3 Females and Males of Reproductive Potential Infertility Females Based on the pharmacologic action of risperidone (D 2 receptor antagonism), treatment with risperidone may result in an increase in serum prolactin levels , which may lead to a reversible reduction in fertility in females of reproductive potential [see Warnings and Precautions ( 5.6 )].

BOXED WARNING

WARNING: INCREASED MORTALITY IN ELDERLY PATIENTS WITH DEMENTIA-RELATED PSYCHOSIS Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death.

Risperidone tablets are not approved for the treatment of patients with dementia-related psychosis.

[see Warnings and Precautions (5.1) ] WARNING: INCREASED MORTALITY IN ELDERLY PATIENTS WITH DEMENTIA-RELATED PSYCHOSIS See full prescribing information for complete boxed warning Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death.

Risperidone tablets are not approved for use in patients with dementia-related psychosis.

( 5.1 )

WARNING AND CAUTIONS

5 WARNINGS AND PRECAUTIONS Cerebrovascular events, including stroke, in elderly patients with dementia-related psychosis: Risperidone tablets are not approved for use in patients with dementia-related psychosis ( 5.2 ) Neuroleptic Malignant Syndrome: Manage with immediate discontinuation of risperidone tablets and close monitoring.

( 5.3 ) Tardive dyskinesia: Consider discontinuing risperidone tablets if clinically indicated.

( 5.4 ) Metabolic Changes: Atypical antipsychotic drugs have been associated with metabolic changes that may increase cardiovascular / cerebrovascular risk.

These metabolic changes include hyperglycemia, dyslipidemia, and weight gain.

( 5.5 ) Hyperglycemia and Diabetes Mellitus: Monitor patients for symptoms of hyperglycemia including polydipsia, polyuria, polyphagia and weakness.

Monitor glucose regularly in patients with diabetes or at risk for diabetes.

( 5.5 ) Dyslipidemia: Undesirable alterations have been observed in patients treated with atypical antipsychotics.

( 5.5 ) Weight Gain : Significant weight gain has been reported.

Monitor weight gain.

( 5.5 ) Hyperprolactinemia: Prolactin elevations occur and persist during chronic administration.

( 5.6 ) Orthostatic hypotension: For patients at risk, consider a lower starting dose and slower titration.

( 5.7 ) Leukopenia, Neutropenia, and Agranulocytosis: Perform complete blood counts in patients with a history of clinically significant low white blood cell count (WBC).

Consider discontinuing risperidone tablets if a clinically significant decline in WBC occurs in the absence of other causative factors.

( 5.9 ) Potential for cognitive and motor impairment: Use caution when operating machinery.

( 5.10 ) Seizures: Use cautiously in patients with a history of seizures or with conditions that lower the seizure threshold.

( 5.11 ) 5.1 Increased Mortality in Elderly Patients with Dementia-Related Psychosis Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death.

Analyses of 17 placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug-treated patients of between 1.6 to 1.7 times the risk of death in placebo-treated patients.

Over the course of a typical 10-week controlled trial, the rate of death in drug-treated patients was about 4.5%, compared to a rate of about 2.6% in the placebo group.

Although the causes of death were varied, most of the deaths appeared to be either cardiovascular (e.g., heart failure, sudden death) or infectious (e.g., pneumonia) in nature.

Observational studies suggest that, similar to atypical antipsychotic drugs, treatment with conventional antipsychotic drugs may increase mortality.

The extent to which the findings of increased mortality in observational studies may be attributed to the antipsychotic drug as opposed to some characteristic(s) of the patients is not clear.

In two of four placebo-controlled trials in elderly patients with dementia-related psychosis, a higher incidence of mortality was observed in patients treated with furosemide plus risperidone tablets when compared to patients treated with risperidone tablets alone or with placebo plus furosemide.

No pathological mechanism has been identified to explain this finding, and no consistent pattern for cause of death was observed.

Risperidone tablets are not approved for the treatment of dementia-related psychosis [see Boxed Warning ] .

5.2 Cerebrovascular Adverse Reactions, Including Stroke, in Elderly Patients with Dementia-Related Psychosis Cerebrovascular adverse reactions (e.g., stroke, transient ischemic attack), including fatalities, were reported in patients (mean age 85 years; range 73-97) in trials of risperidone in elderly patients with dementia-related psychosis.

In placebo-controlled trials, there was a significantly higher incidence of cerebrovascular adverse events in patients treated with risperidone compared to patients treated with placebo.

Risperidone tablets are not approved for the treatment of patients with dementia-related psychosis.

[see Boxed Warning and Warnings and Precautions (5.1) ] .

5.3 Neuroleptic Malignant Syndrome Neuroleptic Malignant Syndrome (NMS), a potentially fatal symptom complex, has been reported in association with antipsychotic drugs.

Clinical manifestations of NMS are hyperpyrexia, muscle rigidity, altered mental status including delirium, and autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis, and cardiac dysrhythmia).

Additional signs may include elevated creatine phosphokinase, myoglobinuria (rhabdomyolysis), and acute renal failure.

If NMS is suspected , immediately discontinue risperidone tablets and provide symptomatic treatment and monitoring.

5.4 Tardive Dyskinesia Tardive dyskinesia, a syndrome consisting of potentially irreversible, involuntary, dyskinetic movements, may develop in patients treated with antipsychotic drugs.

Although the prevalence of the syndrome appears to be highest among the elderly, especially elderly women, it is impossible to predict which patients will develop the syndrome.

Whether antipsychotic drug products differ in their potential to cause tardive dyskinesia is unknown.

The risk of developing tardive dyskinesia and the likelihood that it will become irreversible increase with the duration of treatment and the cumulative dose.

The syndrome can develop after relatively brief treatment periods, even at low doses.

It may also occur after discontinuation of treatment.

Tardive dyskinesia may remit, partially or completely, if antipsychotic treatment is discontinued.

Antipsychotic treatment, itself, however, may suppress (or partially suppress) the signs and symptoms of the syndrome, possibly masking the underlying process.

The effect that symptomatic suppression has upon the long-term course of the syndrome is unknown.

Given these considerations, risperidone tablets should be prescribed in a manner that is most likely to minimize the occurrence of tardive dyskinesia.

Chronic antipsychotic treatment should generally be reserved for patients: (1) who suffer from a chronic illness that is known to respond to antipsychotic drugs, and (2) for whom alternative, equally effective, but potentially less harmful treatments are not available or appropriate.

In patients who do require chronic treatment, use the lowest dose and the shortest duration of treatment producing a satisfactory clinical response.

Periodically reassess the need for continued treatment.

If signs and symptoms of tardive dyskinesia appear in a patient on risperidone tablets, drug discontinuation should be considered.

However, some patients may require treatment with risperidone tablets despite the presence of the syndrome.

5.5 Metabolic Changes Atypical antipsychotic drugs have been associated with metabolic changes that may increase cardiovascular/cerebrovascular risk.

These metabolic changes include hyperglycemia, dyslipidemia, and body weight gain.

While all of the drugs in the class have been shown to produce some metabolic changes, each drug has its own specific risk profile.

Hyperglycemia and Diabetes Mellitus Hyperglycemia and diabetes mellitus, in some cases extreme and associated with ketoacidosis or hyperosmolar coma or death, have been reported in patients treated with atypical antipsychotics including risperidone tablets.

Assessment of the relationship between atypical antipsychotic use and glucose abnormalities is complicated by the possibility of an increased background risk of diabetes mellitus in patients with schizophrenia and the increasing incidence of diabetes mellitus in the general population.

Given these confounders, the relationship between atypical antipsychotic use and hyperglycemia-related adverse events is not completely understood.

However, epidemiological studies suggest an increased risk of treatment-emergent hyperglycemia-related adverse events in patients treated with the atypical antipsychotics.

Precise risk estimates for hyperglycemia-related adverse events in patients treated with atypical antipsychotics are not available.

Patients with an established diagnosis of diabetes mellitus who are started on atypical antipsychotics, including risperidone tablets, should be monitored regularly for worsening of glucose control.

Patients with risk factors for diabetes mellitus (e.g., obesity, family history of diabetes) who are starting treatment with atypical antipsychotics, including risperidone tablets, should undergo fasting blood glucose testing at the beginning of treatment and periodically during treatment.

Any patient treated with atypical antipsychotics, including risperidone tablets, should be monitored for symptoms of hyperglycemia including polydipsia, polyuria, polyphagia, and weakness.

Patients who develop symptoms of hyperglycemia during treatment with atypical antipsychotics, including risperidone tablets, should undergo fasting blood glucose testing.

In some cases, hyperglycemia has resolved when the atypical antipsychotic, including risperidone tablets, was discontinued; however, some patients required continuation of anti-diabetic treatment despite discontinuation of risperidone tablets.

Pooled data from three double-blind, placebo-controlled schizophrenia studies and four double-blind, placebo-controlled bipolar monotherapy studies are presented in Table 2.

Table 2.

Change in Random Glucose from Seven Placebo-Controlled, 3- to 8-Week, Fixed- or Flexible-Dose Studies in Adult Subjects with Schizophrenia or Bipolar Mania Risperidone Tablets Placebo 1–8 mg/day >8–16 mg/day Mean change from baseline (mg/dL) Serum Glucose n=555 – 1.4 n=748 0.8 n=164 0.6 Proportion of patients with shifts Serum Glucose (<140 mg/dL to ≥200 mg/dL) 0.6% (3/525) 0.4% (3/702) 0% (0/158) In longer-term, controlled and uncontrolled studies, risperidone tablets were associated with a mean change in glucose of +2.8 mg/dL at Week 24 (n=151) and +4.1 mg/dL at Week 48 (n=50).

Data from the placebo-controlled 3- to 6-week study in children and adolescents with schizophrenia (13–17 years of age), bipolar mania (10–17 years of age), or autistic disorder (5 to 17 years of age) are presented in Table 3.

Table 3.

Change in Fasting Glucose from Three Placebo-Controlled, 3- to 6-Week, Fixed-Dose Studies in Children and Adolescents with Schizophrenia (13–17 years of age), Bipolar Mania (10–17 years of age), or Autistic Disorder (5 to 17 years of age) Risperidone Tablets Placebo 0.5-6 mg/day Mean change from baseline (mg/dL) Serum Glucose n=76 -1.3 n=135 2.6 Proportion of patients with shifts Serum Glucose (<100 mg/dL to ≥126 mg/dL) 0% (0/64) 0.8% (1/120) In longer-term, uncontrolled, open-label extension pediatric studies, risperidone tablets were associated with a mean change in fasting glucose of +5.2 mg/dL at Week 24 (n=119).

Dyslipidemia Undesirable alterations in lipids have been observed in patients treated with atypical antipsychotics.

Pooled data from 7 placebo-controlled, 3- to 8- week, fixed- or flexible-dose studies in adult subjects with schizophrenia or bipolar mania are presented in Table 4.

Table 4.

Change in Random Lipids from Seven Placebo-Controlled, 3- to 8-Week, Fixed- or Flexible -Dose Studies in Adult Subjects with Schizophrenia or Bipolar Mania Risperidone Tablets Placebo 1–8 mg/day >8–16 mg/day Mean change from baseline (mg/dL) Cholesterol n=559 n=742 n=156 Change from baseline 0.6 6.9 1.8 Triglycerides n=183 n=307 n=123 Change from baseline -17.4 -4.9 -8.3 Proportion of patients with shifts Cholesterol (<200 mg/dL to ≥240 mg/dL) 2.7% (10/368) 4.3% (22/516) 6.3% (6/96) Triglycerides 1.1% 2.7% 2.5% (<500 mg/dL to ≥500 mg/dL) (2/180) (8/301) (3/121) In longer-term, controlled and uncontrolled studies, risperidone tablets were associated with a mean change in (a) non-fasting cholesterol of +4.4 mg/dL at Week 24 (n=231) and +5.5 mg/dL at Week 48 (n=86); and (b) non-fasting triglycerides of +19.9 mg/dL at Week 24 (n=52).

Pooled data from 3 placebo-controlled, 3- to 6-week, fixed-dose studies in children and adolescents with schizophrenia (13–17 years of age), bipolar mania (10–17 years of age), or autistic disorder (5–17 years of age) are presented in Table 5.

Table 5.

Change in Fasting Lipids from Three Placebo-Controlled, 3- to 6-Week, Fixed-Dose Studies in Children and Adolescents with Schizophrenia (13–17 Years of Age), Bipolar Mania (10–17 Years of Age), or Autistic Disorder (5 to 17 Years of Age) Risperidone Tablets Placebo 0.5-6 mg/day Mean change from baseline (mg/dL) Cholesterol n=74 n=133 Change from baseline 0.3 -0.3 LDL n=22 n=22 Change from baseline 3.7 0.5 HDL n=22 n=22 Change from baseline 1.6 -1.9 Triglycerides n=77 n=138 Change from baseline -9.0 -2.6 Proportion of patients with shifts Cholesterol 2.4% 3.8% (<170 mg/dL to ≥200 mg/dL) (1/42) (3/80) LDL 0% 0% (<110 mg/dL to ≥130 mg/dL) (0/16) (0/16) HDL 0% 10% (≥40 mg/dL to <40 mg/dL) (0/19) (2/20) Triglycerides 1.5% 7.1% (<150 mg/dL to ≥200 mg/dL) (1/65) (8/113) In longer-term, uncontrolled, open-label extension pediatric studies, risperidone tablets were associated with a mean change in (a) fasting cholesterol of +2.1 mg/dL at Week 24 (n=114); (b) fasting LDL of -0.2 mg/dL at Week 24 (n=103); (c) fasting HDL of +0.4 mg/dL at Week 24 (n=103); and (d) fasting triglycerides of +6.8 mg/dL at Week 24 (n=120).

Weight Gain Weight gain has been observed with atypical antipsychotic use.

Clinical monitoring of weight is recommended.

Data on mean changes in body weight and the proportion of subjects meeting a weight gain criterion of 7% or greater of body weight from 7 placebo-controlled, 3- to 8- week, fixed- or flexible-dose studies in adult subjects with schizophrenia or bipolar mania are presented in Table 6.

Table 6.

Mean Change in Body Weight (kg) and the Proportion of Subjects with =7% Gain in Body Weight From Seven Placebo-Controlled, 3- to 8-Week, Fixed- or Flexible-Dose Studies in Adult Subjects With Schizophrenia or Bipolar Mania Risperidone Tablets Placebo (n=597) 1–8 mg/day (n=769) >8–16 mg/day (n=158) Weight (kg) Change from baseline -0.3 0.7 2.2 Weight Gain ≥7% increase from baseline 2.9% 8.7% 20.9% In longer-term, controlled and uncontrolled studies, risperidone tablets were associated with a mean change in weight of +4.3 kg at Week 24 (n=395) and +5.3 kg at Week 48 (n=203).

Data on mean changes in body weight and the proportion of subjects meeting the criterion of ≥7% gain in body weight from nine placebo-controlled, 3- to 8-week, fixed-dose studies in children and adolescents with schizophrenia (13–17 years of age), bipolar mania (10–17 years of age), autistic disorder (5–17 years of age), or other psychiatric disorders (5–17 years of age) are presented in Table 7.

Table 7.

Mean Change in Body Weight (kg) and the Proportion of Subjects With =7% Gain in Body Weight From Nine Placebo-Controlled, 3- to 8-Week, Fixed-Dose Studies in Children and Adolescents With Schizophrenia (13–17 Years of Age), Bipolar Mania (10–17 Years of Age), Autistic Disorder (5 to 17 Years of Age) or Other Psychiatric Disorders (5–17 Years of Age) Placebo Risperidone Tablets 0.5–6 mg/day (n=375) (n=448) Weight (kg) Change from baseline 0.6 2.0 Weight Gain ≥7% increase from baseline 6.9% 32.6% In longer-term, uncontrolled, open-label extension pediatric studies, risperidone tablets were associated with a mean change in weight of +5.5 kg at Week 24 (n=748) and +8.0 kg at Week 48 (n=242).

In a long-term, open-label extension study in adolescent patients with schizophrenia, weight increase was reported as a treatment-emergent adverse event in 14% of patients.

In 103 adolescent patients with schizophrenia, a mean increase of 9.0 kg was observed after 8 months of risperidone tablets treatment.

The majority of that increase was observed within the first 6 months.

The average percentiles at baseline and 8 months, respectively, were 56 and 72 for weight, 55 and 58 for height, and 51 and 71 for body mass index.

In long-term, open-label trials (studies in patients with autistic disorder or other psychiatric disorders), a mean increase of 7.5 kg after 12 months of risperidone tablets treatment was observed, which was higher than the expected normal weight gain (approximately 3 to 3.5 kg per year adjusted for age, based on Centers for Disease Control and Prevention normative data).

The majority of that increase occurred within the first 6 months of exposure to risperidone tablets.

The average percentiles at baseline and 12 months, respectively, were 49 and 60 for weight, 48 and 53 for height, and 50 and 62 for body mass index.

In one 3-week, placebo-controlled trial in children and adolescent patients with acute manic or mixed episodes of bipolar I disorder, increases in body weight were higher in the risperidone tablets groups than the placebo group, but not dose related (1.90 kg in the risperidone tablets 0.5–2.5 mg group, 1.44 kg in the risperidone tablets 3–6 mg group, and 0.65 kg in the placebo group).

A similar trend was observed in the mean change from baseline in body mass index.

When treating pediatric patients with risperidone tablets for any indication, weight gain should be assessed against that expected with normal growth.

5.6 Hyperprolactinemia As with other drugs that antagonize dopamine D 2 receptors, risperidone tablets elevates prolactin levels and the elevation persists during chronic administration.

Risperidone tablets are associated with higher levels of prolactin elevation than other antipsychotic agents.

Hyperprolactinemia may suppress hypothalamic GnRH, resulting in reduced pituitary gonadotropin secretion.

This, in turn, may inhibit reproductive function by impairing gonadal steroidogenesis in both female and male patients.

Galactorrhea, amenorrhea, gynecomastia, and impotence have been reported in patients receiving prolactin-elevating compounds.

Long-standing hyperprolactinemia when associated with hypogonadism may lead to decreased bone density in both female and male subjects.

Tissue culture experiments indicate that approximately one-third of human breast cancers are prolactin dependent in vitro , a factor of potential importance if the prescription of these drugs is contemplated in a patient with previously detected breast cancer.

An increase in pituitary gland, mammary gland, and pancreatic islet cell neoplasia (mammary adenocarcinomas, pituitary and pancreatic adenomas) was observed in the risperidone carcinogenicity studies conducted in mice and rats [see Nonclinical Toxicology (13.1) ] .

Neither clinical studies nor epidemiologic studies conducted to date have shown an association between chronic administration of this class of drugs and tumorigenesis in humans; the available evidence is considered too limited to be conclusive at this time.

5.7 Orthostatic Hypotension Risperidone tablets may induce orthostatic hypotension associated with dizziness, tachycardia, and in some patients, syncope, especially during the initial dose-titration period, probably reflecting its alpha-adrenergic antagonistic properties.

Syncope was reported in 0.2% (6/2607) of risperidone tablets-treated patients in Phase 2 and 3 studies in adults with schizophrenia.

The risk of orthostatic hypotension and syncope may be minimized by limiting the initial dose to 2 mg total (either once daily or 1 mg twice daily) in normal adults and 0.5 mg twice daily in the elderly and patients with renal or hepatic impairment [see Dosage and Administration ( 2.1 , 2.4 )] .

Monitoring of orthostatic vital signs should be considered in patients for whom this is of concern.

A dose reduction should be considered if hypotension occurs.

Risperidone tablets should be used with particular caution in patients with known cardiovascular disease (history of myocardial infarction or ischemia, heart failure, or conduction abnormalities), cerebrovascular disease, and conditions which would predispose patients to hypotension, e.g., dehydration and hypovolemia, and in the elderly and patients with renal or hepatic impairment.

Monitoring of orthostatic vital signs should be considered if hypotension occurs.

Clinically significant hypotension has been observed with concomitant use of risperidone tablets and antihypertensive medication.

5.8 Falls Somnolence, postural hypotension, motor and sensory instability have been reported with the use of antipsychotics, including risperidone tablets, which may lead to falls and, consequently, fractures or other fall-related injuries.

For patients, particularly the elderly, with diseases, conditions, or medications that could exacerbate these effects, assess the risk of falls when initiating antipsychotic treatment and recurrently for patients on long-term antipsychotic therapy.

5.9 Leukopenia, Neutropenia, and Agranulocytosis Class Effect : In clinical trial and/or postmarketing experience, events of leukopenia/neutropenia have been reported temporally related to antipsychotic agents, including risperidone tablets.

Agranulocytosis has also been reported.

Possible risk factors for leukopenia/neutropenia include pre-existing low white blood cell count (WBC) and history of drug-induced leukopenia/neutropenia.

Patients with a history of a clinically significant low WBC or a drug-induced leukopenia/neutropenia should have their complete blood count (CBC) monitored frequently during the first few months of therapy and discontinuation of risperidone tablets should be considered at the first sign of a clinically significant decline in WBC in the absence of other causative factors.

Patients with clinically significant neutropenia should be carefully monitored for fever or other symptoms or signs of infection and treated promptly if such symptoms or signs occur.

Patients with severe neutropenia (absolute neutrophil count <1000/mm 3 ) should discontinue risperidone tablets and have their WBC followed until recovery.

5.10 Potential for Cognitive and Motor Impairment Somnolence was a commonly reported adverse reactions associated with risperidone tablets treatment, especially when ascertained by direct questioning of patients.

This adverse reaction is dose-related, and in a study utilizing a checklist to detect adverse events, 41% of the high-dose patients (risperidone tablets 16 mg/day) reported somnolence compared to 16% of placebo patients.

Direct questioning is more sensitive for detecting adverse events than spontaneous reporting, by which 8% of risperidone tablets 16 mg/day patients and 1% of placebo patients reported somnolence as an adverse reation.

Since risperidone tablets have the potential to impair judgment, thinking, or motor skills, patients should be cautioned about operating hazardous machinery, including automobiles, until they are reasonably certain that risperidone tablets therapy does not affect them adversely.

5.11 Seizures During premarketing testing in adult patients with schizophrenia, seizures occurred in 0.3% (9/2607) of risperidone tablets-treated patients, two in association with hyponatremia.

Risperidone tablets should be used cautiously in patients with a history of seizures.

5.12 Dysphagia Esophageal dysmotility and aspiration have been associated with antipsychotic drug use.

Aspiration pneumonia is a common cause of morbidity and mortality in patients with advanced Alzheimer’s dementia.

Risperidone tablets and other antipsychotic drugs should be used cautiously in patients at risk for aspiration pneumonia.

[see Boxed Warning and Warnings and Precautions (5.1) ].

5.13 Priapism Priapism has been reported during postmarketing surveillance.

Severe priapism may require surgical intervention.

5.14 Body Temperature Regulation Disruption of body temperature regulation has been attributed to antipsychotic agents.

Both hyperthermia and hypothermia have been reported in association with oral risperidone tablets use.

Caution is advised when prescribing for patients who will be exposed to temperature extremes.

INFORMATION FOR PATIENTS

17 PATIENT COUNSELING INFORMATION Physicians are advised to discuss the following issues with patients for whom they prescribe risperidone tablets.

Neuroleptic Malignant Syndrome (NMS) Counsel patients about a potentially fatal adverse reaction, Neuroleptic Malignant Syndrome (NMS), that has been reported in association with administration of antipsychotic drugs.

Advise patients, family members, or caregivers to contact the healthcare provider or report to the emergency room if they experience signs and symptoms of NMS, including hyperpyrexia, muscle rigidity, altered mental status including delirium, and evidence of autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis, and cardiac dysrhythmia) [see Warnings and Precautions ( 5.3 )] .

Tardive Dyskinesia Counsel patients on the signs and symptoms of tardive dyskinesia and to contact their healthcare provider if these abnormal movements occur [see Warnings and Precautions ( 5.4 )] .

Metabolic Changes Educate patients about the risk of metabolic changes, how to recognize symptoms of hyperglycemia and diabetes mellitus, and the need for specific monitoring, including blood glucose, lipids, and weight [see Warnings and Precautions ( 5.5 )] .

Orthostatic Hypotension Educate patients about the risk of orthostatic hypotension and syncope, particularly at the time of initiating treatment, re-initiating treatment, or increasing the dose [see Warnings and Precautions ( 5.7 )] .

Leukopenia/Neutropenia Advise patients with a pre-existing low WBC or a history of drug induced leukopenia/neutropenia they should have their CBC monitored while taking risperdione tablets [see Warnings and Precautions ( 5.9 )] .

Hyperprolactinemia Counsel patients on signs and symptoms of hyperprolactinemia that may be associated with chronic use of risperdione tablets.

Advise them to seek medical attention if they experience any of the following: amenorrhea or galactorrhea in females, erectile dysfunction or gynecomastia in males.

[See Warnings and Precautions ( 5.6 )] .

Interference with Cognitive and Motor Performance Caution patients about performing activities requiring mental alertness, such as operating hazardous machinery, or operating a motor vehicle until they are reasonably certain that risperdione tablets therapy does not affect them adversely [see Warnings and Precautions ( 5.10 )] .

Priapism Advise patients of the possibility of painful or prolonged penile erections (priapism).

Instruct the patient to seek immediate medical attention in the event of priapism [Warnings and Precautions ( 5.13 )] .

Heat Exposure and Dehydration Counsel patients regarding appropriate care in avoiding overheating and dehydration [see Warnings and Precautions ( 5.14 )] .

Concomitant Medication Advise patients to inform their healthcare providers if they are taking, or plan to take any prescription or over-the-counter drugs, as there is a potential for interactions [see Drug Interactions ( 7 )] .

Alcohol Advise patients to avoid alcohol while taking risperdione tablets [see Drug Interactions ( 7.2 )] .

Pregnancy Advise patients to notify their healthcare provider if they become pregnant or intend to become pregnant during treatment with risperdione tablets.

Advise patients that risperdione tablets may cause extrapyramidal and/or withdrawal symptoms in a neonate.

Advise patients that there is a pregnancy registry that monitors pregnancy outcomes in women exposed to risperdione tablets during pregnancy [see Use in Specific Populations ( 8.1 )] .

Lactation Advise breastfeeding women using risperdione tablets to monitor infants for somnolence, failure to thrive, jitteriness, and extrapyramidal symptoms (tremors and abnormal muscle movements) and to seek medical care if they notice these signs [see Use in Specific Populations ( 8.2 )] .

Infertility Advise females of reproductive potential that risperdione tablets may impair fertility due to an increase in serum prolactin levels.

The effects on fertility are reversible [see Use in Specific Populations ( 8.3 )].

Risperidone Tablets, USP Marketed by: Ajanta Pharma USA Inc.

Bridgewater, NJ 08807.

Made in India.

Revised: 02/2021

DOSAGE AND ADMINISTRATION

2 Table 1.

Recommended Daily Dosage by Indication Initial Dose Titration (Increments) Target Dose Effective Dose Range Schizophrenia: adults ( 2.1 ) 2 mg 1 to 2 mg 4 to 8 mg 4 to 16 mg Schizophrenia: adolescents ( 2.2 ) 0.5 mg 0.5 to 1 mg 3 mg 1 to 6 mg Bipolar mania: adults ( 2.2 ) 2 to 3 mg 1 mg 1 to 6 mg 1 to 6 mg Bipolar mania: children and adolescents ( 2.2 ) 0.5 mg 0.5 to 1 mg 1 to 2.5 mg 1 to 6 mg Irritability in autistic disorder ( 2.3 ) 0.25 mg Can increase to 0.5 mg by Day 4: (body weight less than 20 kg) 0.5 mg Can increase to 1 mg by Day 4: (body weight greater than or equal to 20 kg) After Day 4, at intervals of > 2 weeks: 0.25 mg (body weight less than 20 kg) 0.5 mg (body weight greater than or equal to 20 kg) 0.5 mg: (body weight less than 20 kg) 1 mg: (body weight greater than or equal to 20 kg) 0.5 to 3 mg Severe Renal and Hepatic Impairment in Adults: use a lower starting dose of 0.5 mg twice daily.

May increase to dosages above 1.5 mg twice daily at intervals of one week or longer.

Recommended daily dosage: Initial Dose Target Dose Effective Dose Range Schizophrenia: adults ( 2.1 ) 2 mg 4 to 8 mg 4 to 16 mg Schizophrenia: adolescents ( 2.1 ) 0.5 mg 3 mg 1 to 6 mg Bipolar mania: Adults ( 2.2 ) 2 to 3 mg 1 to 6 mg 1 to 6 mg Bipolar mania: in children and adolescents ( 2.2 ) 0.5 mg 1 to 2.5 mg 1 to 6 mg Irritability associated with autistic disorder ( 2.3 ) 0.25 mg (Weight < 20 kg) 0.5 mg (Weight ≥20 kg) 0.5 mg (<20 kg) 1 mg (≥20 kg) 0.5 to 3 mg Severe Renal or Hepatic Impairment in Adults: Use a lower starting dose of 0.5 mg twice daily.

May increase to dosages above 1.5 mg twice daily at intervals of at least one week.

( 2.4 ) 2.1 Schizophrenia Adults Usual Initial Dose Risperidone tablets can be administered once or twice daily.

Initial dosing is 2 mg per day.

May increase the dose at intervals of 24 hours or greater, in increments of 1 to 2 mg per day, as tolerated, to a recommended dose of 4 to 8 mg per day.

In some patients, slower titration may be appropriate.

Efficacy has been demonstrated in a range of 4 mg to 16 mg per day .

However, doses above 6 mg per day for twice daily dosing were not demonstrated to be more efficacious than lower doses, were associated with more extrapyramidal symptoms and other adverse effects, and are generally not recommended.

In a single study supporting once-daily dosing, the efficacy results were generally stronger for 8 mg than for 4 mg.

The safety of doses above 16 mg per day has not been evaluated in clinical trials [see Clinical Studies (14.1) ].

Adolescents The initial dose is 0.5 mg once daily, administered as a single-daily dose in the morning or evening.

The dose may be adjusted at intervals of 24 hours or greater, in increments of 0.5 mg or 1 mg per day, as tolerated, to a recommended dose of 3 mg per day.

Although efficacy has been demonstrated in studies of adolescent patients with schizophrenia at doses between 1 mg and 6 mg per day, no additional benefit was observed above 3 mg per day, and higher doses were associated with more adverse events.

Doses higher than 6 mg per day have not been studied.

Patients experiencing persistent somnolence may benefit from administering half the daily dose twice daily.

Maintenance Therapy While it is unknown how long a patient with schizophrenia should remain on risperidone tablets, the effectiveness of risperidone tablets 2 mg per day to 8 mg per day at delaying relapse was demonstrated in a controlled trial in adult patients who had been clinically stable for at least 4 weeks and were then followed for a period of 1 to 2 years [see Clinical Studies (14.1) ] .

Both adult and adolescent patients who respond acutely should generally be maintained on their effective dose beyond the acute episode.

Patients should be periodically reassessed to determine the need for maintenance treatment.

Reinitiation of Treatment in Patients Previously Discontinued Although there are no data to specifically address reinitiation of treatment, it is recommended that after an interval off risperidone tablets, the initial titration schedule should be followed.

Switching From Other Antipsychotics There are no systematically collected data to specifically address switching schizophrenic patients from other antipsychotics to risperidone tablets, or treating patients with concomitant antipsychotics.

2.2 Bipolar Mania Usual Dose Adults The inital dose range is 2 mg to 3 mg per day.

The dose may be adjusted at intervals of 24 hours or greater, in increments of 1 mg per day.

The effective dose range is 1 mg to 6 mg per day, as studied in the short-term, placebo-controlled trials.

In these trials, short-term (3 week) anti-manic efficacy was demonstrated in a flexible dosage range of 1 mg to 6 mg per day [see Clinical Studies (14.2 , 14.3) ] .

Risperidone tablets doses higher than 6 mg per day were not studied.

Pediatrics The inital dose is 0.5 mg once daily, administered as a single-daily dose in the morning or evening.

The dose may be adjusted at intervals of 24 hours or greater, in increments of 0.5 mg or 1 mg per day, as tolerated, to the recommended target dose of 1 mg to 2.5 mg per day.

Although efficacy has been demonstrated in studies of pediatric patients with bipolar mania at doses between 0.5 mg and 6 mg per day, no additional benefit was observed above 2.5 mg per day, and higher doses were associated with more adverse events.

Doses higher than 6 mg per day have not been studied.

Patients experiencing persistent somnolence may benefit from administering half the daily dose twice daily.

Maintenance Therapy There is no body of evidence available from controlled trials to guide a clinician in the longer-term management of a patient who improves during treatment of an acute manic episode with risperidone tablets.

While it is generally agreed that pharmacological treatment beyond an acute response in mania is desirable, both for maintenance of the initial response and for prevention of new manic episodes, there are no systematically obtained data to support the use of risperidone tablets in such longer-term treatment (i.e., beyond 3 weeks).

The physician who elects to use risperidone tablets for extended periods should periodically re-evaluate the long-term risks and benefits of the drug for the individual patient.

2.3 Irritability Associated with Autistic Disorder – Pediatrics (Children and Adolescents) The dosage of risperidone tablets should be individualized according to the response and tolerability of the patient.

The total daily dose of risperidone tablets can be administered once daily, or half the total daily dose can be administered twice daily.

For patients with body weight less than 20 kg, initiate dosing at 0.25 mg per day.

For patients with body weight greater than or equal to 20 kg, initiate dosing at 0.5 mg per day.

After a minimum of four days, the dose may be increased to the recommended dose of 0.5 mg per day for patients less than 20 kg and 1.0 mg per day for patients greater than or equal to 20 kg.

Maintain this dose for a minimum of 14 days.

In patients not achieving sufficient clinical response, the dose may be increased at intervals of 2 weeks or greater, in increments of 0.25 mg per day for patients less than 20 kg, or increments of 0.5 mg per day for patients greater than or equal to 20 kg.

The effective dose range is 0.5 mg to 3 mg per day.

No dosing data are available for children who weigh less than 15 kg.

Once sufficient clinical response has been achieved and maintained, consider gradually lowering the dose to achieve the optimal balance of efficacy and safety.

The physician who elects to use risperidone tablets for extended periods should periodically re-evaluate the long-term risks and benefits of the drug for the individual patient.

Patients experiencing persistent somnolence may benefit from a once-daily dose administered at bedtime or administering half the daily dose twice daily, or a reduction of the dose.

2.4 Dosing in Patients with Severe Renal or Hepatic Impairment For patients with severe renal impairment (Clcr < 30 mL/min) or hepatic impairment (10-15 points on Child Pugh System), the initial starting dose is 0.5 mg twice daily.

The dose may be increased in increments of 0.5 mg or less, administered twice daily.

For doses above 1.5 mg twice daily, increase in intervals of one week or greater [see Use in Specific Populations (8.6 and 8.7) ] .

2.5 Dose Adjustments for Specific Drug Interactions When risperidone tablets are co-administered with enzyme inducers (e.g., carbamazepine), the dose of risperidone tablets should be increased up to double the patient’s usual dose.

It may be necessary to decrease the risperidone tablets dose when enzyme inducers such as carbamazepine are discontinued [see Drug Interactions (7.1) ] .

Similar effect may be expected with co-administration of risperidone tablets with other enzyme inducers (e.g., phenytoin, rifampin, and phenobarbital).

When fluoxetine or paroxetine is co-administered with risperidone tablets, the dose of risperidone tablets should be reduced.

The risperidone tablets dose should not exceed 8 mg per day in adults when co-administered with these drugs.

When initiating therapy, risperidone tablets should be titrated slowly.

It may be necessary to increase the risperidone tablets dose when enzyme inhibitors such as fluoxetine or paroxetine are discontinued [see Drug Interactions (7.1) ] .

omega-3 acid ethyl esters 1 GM Oral Capsule

Generic Name: OMEGA-3-ACID ETHYL ESTERS
Brand Name: Omega-3-acid ethyl esters
  • Substance Name(s):
  • OMEGA-3-ACID ETHYL ESTERS

DRUG INTERACTIONS

7 Omega-3-acids may prolong bleeding time.

Patients taking omega-3-acid ethyl esters capsules and an anticoagulant or other drug affecting coagulation (e.g., anti-platelet agents) should be monitored periodically.

( 7.1 ) 7.1 Anticoagulants or Other Drugs Affecting Coagulation Some trials with omega-3-acids demonstrated prolongation of bleeding time.

The prolongation of bleeding time reported in these trials has not exceeded normal limits and did not produce clinically significant bleeding episodes.

Clinical trials have not been done to thoroughly examine the effect of omega-3-acid ethyl esters and concomitant anticoagulants.

Patients receiving treatment with omega-3-acid ethyl esters and an anticoagulant or other drug affecting coagulation (e.g., anti-platelet agents) should be monitored periodically.

DESCRIPTION

11 Omega-3-acid ethyl esters capsules, USP, a lipid-regulating agent, are supplied as a liquid-filled gel capsule for oral administration.

Each 1-gram capsule of omega-3-acid ethyl esters capsules, USP contains at least 900 mg of the ethyl esters of omega-3 fatty acids sourced from fish oils.

These are predominantly a combination of ethyl esters of eicosapentaenoic acid (EPA – approximately 465 mg) and docosahexaenoic acid (DHA – approximately 375 mg).

The molecular formula of EPA ethyl ester is C 22 H 34 O 2 , and the molecular weight of EPA ethyl ester is 330.51.

The structural formula of EPA ethyl ester is: The molecular formula of DHA ethyl ester is C 24 H 36 O 2 , and the molecular weight of DHA ethyl ester is 356.55.

The structural formula of DHA ethyl ester is: Omega-3-acid ethyl esters capsules, USP also contain the following inactive ingredients: 4 mg α-tocopherol (in a carrier of soybean oil), and gelatin, glycerin, purified water, and white ink (components of the capsule shell).

The capsule imprinting ink contains ammonium hydroxide, propylene glycol, shellac glaze, simethicone and titanium dioxide.

CLINICAL STUDIES

14 14.1 Severe Hypertriglyceridemia The effects of omega-3-acid ethyl esters 4 grams per day were assessed in 2 randomized, placebo-controlled, double-blind, parallel-group trials of 84 adult subjects (42 on omega-3-acid ethyl esters, 42 on placebo) with very high TG levels.

Subjects whose baseline TG levels were between 500 and 2,000 mg/dL were enrolled in these 2 trials of 6 and 16 weeks’ duration.

The median TG and LDL-C levels in these subjects were 792 mg/dL and 100 mg/dL, respectively.

Median high-density lipoprotein cholesterol (HDL-C) level was 23.0 mg/dL.

The changes in the major lipoprotein lipid parameters for the groups receiving omega-3-acid ethyl esters or placebo are shown in Table 2.

Table 2.

Median Baseline and Percent Change from Baseline in Lipid Parameters in Subjects With Severe Hypertriglyceridemia (≥500 mg/dL) Parameter Omega-3-acid ethyl esters n = 42 Placebo n = 42 Difference BL % Change BL % Change TG 816 -44.9 788 +6.7 -51.6 Non-HDL-C 271 -13.8 292 -3.6 -10.2 TC 296 -9.7 314 -1.7 -8.0 VLDL-C 175 -41.7 175 -0.9 -40.8 HDL-C 22 +9.1 24 0.0 +9.1 LDL-C 89 +44.5 108 -4.8 +49.3 BL = Baseline (mg/dL); % Change = Median Percent Change from Baseline; Difference = omega-3-acid ethyl esters Median % Change – Placebo Median % Change; TC = Total cholesterol; VLDL-C = Very-low-­density lipoprotein (VLDL) cholesterol.

Omega-3-acid ethyl esters 4 grams per day reduced median TG, VLDL-C, and non-HDL-C levels and increased median HDL-C from baseline relative to placebo.

Treatment with omega-3-acid ethyl esters to reduce very high TG levels may result in elevations in LDL-C and non-HDL-C in some individuals.

Patients should be monitored to ensure that the LDL-C level does not increase excessively.

The effect of omega-3-acid ethyl esters on the risk of pancreatitis has not been determined.

The effect of omega-3-acid ethyl esters on cardiovascular mortality and morbidity has not been determined.

HOW SUPPLIED

16 /STORAGE AND HANDLING Omega-3-acid ethyl esters capsules, USP are supplied as 1-gram transparent, oblong soft gelatin capsules with light yellowish oil printed with white ink (Logo “APO900”).

They are supplied as follows: Bottles of 30s (NDC 60505-3170-3) Bottles of 60s (NDC 60505-3170-6) Bottles of 120s (NDC 60505-3170-7) Store in tight, light-resistant containers at 25°C (77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature].

Protect from light.

Do not freeze.

Keep out of reach of children.

GERIATRIC USE

8.5 Geriatric Use A limited number of subjects older than 65 years were enrolled in the clinical trials of omega-3-acid ethyl esters capsules.

Safety and efficacy findings in subjects older than 60 years did not appear to differ from those of subjects younger than 60 years.

DOSAGE FORMS AND STRENGTHS

3 Omega-3-acid ethyl esters capsules, USP are supplied as 1-gram transparent, soft gelatin capsules filled with light yellowish oil printed with white ink (Logo “APO900”).

Capsules: 1 gram ( 3 )

MECHANISM OF ACTION

12.1 Mechanism of Action The mechanism of action of omega-3-acid ethyl esters is not completely understood.

Potential mechanisms of action include inhibition of acyl-CoA:1,2-diacylglycerol acyltransferase, increased mitochondrial and peroxisomal β-oxidation in the liver, decreased lipogenesis in the liver, and increased plasma lipoprotein lipase activity.

Omega-3-acid ethyl esters may reduce the synthesis of TG in the liver because EPA and DHA are poor substrates for the enzymes responsible for TG synthesis, and EPA and DHA inhibit esterification of other fatty acids.

INDICATIONS AND USAGE

1 Omega-3-acid ethyl esters capsules, USP are indicated as an adjunct to diet to reduce triglyceride (TG) levels in adult patients with severe (greater than or equal to 500 mg/dL) hypertriglyceridemia.

Usage Considerations: Patients should be placed on an appropriate lipid-lowering diet before receiving omega-3-acid ethyl esters capsules, USP and should continue this diet during treatment with omega-3-acid ethyl esters capsules, USP.

Laboratory studies should be done to ascertain that the lipid levels are consistently abnormal before instituting therapy with omega-3-acid ethyl esters.

Every attempt should be made to control serum lipids with appropriate diet, exercise, weight loss in obese patients, and control of any medical problems such as diabetes mellitus and hypothyroidism that are contributing to the lipid abnormalities.

Medications known to exacerbate hypertriglyceridemia (such as beta blockers, thiazides, estrogens) should be discontinued or changed, if possible, prior to consideration of TG-lowering drug therapy.

Limitations of Use: The effect of omega-3-acid ethyl esters capsules, USP on the risk for pancreatitis has not been determined.

The effect of omega-3-acid ethyl esters capsules, USP on cardiovascular mortality and morbidity has not been determined.

Omega-3-acid ethyl esters, USP is a combination of ethyl esters of omega 3 fatty acids, principally eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), indicated as an adjunct to diet to reduce triglyceride (TG) levels in adult patients with severe (≥500 mg/dL) hypertriglyceridemia.

( 1 ) Limitations of Use: The effect of omega-3-acid ethyl esters capsules, USP on the risk for pancreatitis has not been determined.

( 1 ) The effect of omega-3-acid ethyl esters capsules, USP on cardiovascular mortality and morbidity has not been determined.

( 1 )

PEDIATRIC USE

8.4 Pediatric Use Safety and effectiveness in pediatric patients have not been established.

PREGNANCY

8.1 Pregnancy Risk Summary The available data from published case reports and the pharmacovigilance database on the use of omega-3-acid ethyl esters capsules in pregnant women are insufficient to identify a drug-associated risk for major birth defects, miscarriage, or adverse maternal or fetal outcomes.

In animal studies, omega-3-acid ethyl esters given orally to female rats prior to mating through lactation did not have adverse effects on reproduction or development when given at doses 5 times the maximum recommended human dose (MRHD) of 4 grams/day, based on a body surface area comparison.

Omega-3-acid ethyl esters given orally to rats and rabbits during organogenesis was not teratogenic at clinically relevant exposures, based on body surface area comparison (see Data) .

The estimated background risk of major birth defects and miscarriage for the indicated population is unknown.

In the U.S.

general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively.

Data Animal Data: In female rats given oral doses of omega-3-acid ethyl esters (100, 600, or 2,000 mg/kg/day) beginning 2 weeks prior to mating through lactation, no adverse effects were observed at 2,000 mg/kg/day (5 times the MRHD based on body surface area [mg/m 2 ]).

In a dose-ranging study, female rats given oral doses of omega-3-acid ethyl esters (1,000, 3,000, or 6,000 mg/kg/day) beginning 2 weeks prior to mating through Postpartum Day 7 had decreased live births (20% reduction) and pup survival to Postnatal Day 4 (40% reduction) at or greater than 3,000 mg/kg/day in the absence of maternal toxicity at 3,000 mg/kg/day (7 times the MRHD based on body surface area [mg/m 2 ]).

In pregnant rats given oral doses of omega-3-acid ethyl esters (1,000, 3,000, or 6,000 mg/kg/day) during organogenesis, no adverse effects were observed in fetuses at a maternally toxic dose (increased food consumption) of 6,000 mg/kg/day (14 times the MRHD based on body surface area [mg/m 2 ]).

In pregnant rats given oral doses of omega-3-acid ethyl esters (100, 600, or 2,000 mg/kg/day) from Gestation Day 14 through Lactation Day 21, no adverse effects were observed at 2,000 mg/kg/day (5 times the MRHD based on body surface area [mg/m 2 ]).

In pregnant rabbits given oral doses of omega-3-acid ethyl esters (375, 750, or 1,500 mg/kg/day) during organogenesis, no adverse effects were observed in fetuses given 375 mg/kg/day (2 times the MRHD based on body surface area [mg/m 2 ]).

However, at higher doses, increases in fetal skeletal variations and reduced fetal growth were evident at maternally toxic doses (reduced food consumption and body weight gain) greater than or equal to 750 mg/kg/day (4 times the MRHD), and embryolethality was evident at 1,500 mg/kg/day (7 times the MRHD).

NUSRING MOTHERS

8.2 Lactation Risk Summary Published studies have detected omega-3 fatty acids, including EPA and DHA, in human milk.

Lactating women receiving oral omega-3 fatty acids for supplementation have resulted in higher levels of omega-3 fatty acids in human milk.

There are no data available on the effects of omega­-3 fatty acid ethyl esters on the breastfed infant or on milk production.

The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for omega-3-acid ethyl esters capsules and any potential adverse effects on the breastfed child from omega-3-acid ethyl esters capsules or from the underlying maternal condition.

WARNING AND CAUTIONS

5 WARNINGS AND PRECAUTIONS In patients with hepatic impairment, monitor ALT and AST levels periodically during therapy.

( 5.1 ) Omega-3-acid ethyl esters capsules may increase levels of low-density lipoprotein (LDL).

Monitor LDL levels periodically during therapy.

( 5.1 ) Use with caution in patients with known hypersensitivity to fish and/or shellfish.

( 5.2 ) There is a possible association between omega-3-acid ethyl esters and more frequent recurrences of symptomatic atrial fibrillation or flutter in patients with paroxysmal or persistent atrial fibrillation, particularly within the first months of initiating therapy.

( 5.3 ) 5.1 Monitoring: Laboratory Tests In patients with hepatic impairment, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels should be monitored periodically during therapy with omega-3-acid ethyl esters capsules.

In some patients, increases in ALT levels without a concurrent increase in AST levels were observed.

In some patients, omega-3-acid ethyl esters capsule increases low-density lipoprotein cholesterol (LDL-C) levels.

LDL-C levels should be monitored periodically during therapy with omega-3-acid ethyl esters.

Laboratory studies should be performed periodically to measure the patient’s TG levels during therapy with omega-3-acid ethyl esters.

5.2 Fish Allergy Omega-3-acid ethyl esters capsules contain ethyl esters of omega-3 fatty acids (EPA and DHA) obtained from the oil of several fish sources.

It is not known whether patients with allergies to fish and/or shellfish, are at increased risk of an allergic reaction to omega-3-acid ethyl esters capsules.

Omega-3-acid ethyl esters capsules should be used with caution in patients with known hypersensitivity to fish and/or shellfish.

5.3 Recurrent Atrial Fibrillation (AF) or Flutter In a double-blind, placebo-controlled trial of 663 subjects with symptomatic paroxysmal AF (n = 542) or persistent AF (n = 121), recurrent AF or flutter was observed in subjects randomized to omega-3-acid ethyl esters who received 8 grams/day for 7 days and 4 grams/day thereafter for 23 weeks at a higher rate relative to placebo.

Subjects in this trial had median baseline TG levels of 127 mg/dL, had no substantial structural heart disease, were taking no anti-arrhythmic therapy (rate control permitted), and were in normal sinus rhythm at baseline.

At 24 weeks, in the paroxysmal AF stratum, there were 129 (47%) first recurrent symptomatic AF or flutter events on placebo and 141 (53%) on omega-3-acid ethyl esters (primary endpoint, HR: 1.19; 95% CI: 0.93, 1.35).

In the persistent AF stratum, there were 19 (35%) events on placebo and 34 (52%) events on omega-3-acid ethyl esters (HR: 1.63; 95% CI: 0.91, 2.18).

For both strata combined, the HR was 1.25; 95% CI: 1.00, 1.40.

Although the clinical significance of these results is uncertain, there is a possible association between omega-3-acid ethyl esters and more frequent recurrences of symptomatic AF or flutter in patients with paroxysmal or persistent AF, particularly within the first 2 to 3 months of initiating therapy.

Omega-3-acid ethyl esters capsules are not indicated for the treatment of AF or flutter.

INFORMATION FOR PATIENTS

17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Patient Information) .

Information for Patients Omega-3-acid ethyl esters capsules should be used with caution in patients with known sensitivity or allergy to fish and/or shellfish [see Warnings and Precautions (5.2)] .

Advise patients that use of lipid-regulating agents does not reduce the importance of adhering to diet [see Dosage and Administration (2)] .

Advise­ patients not to alter omega-3-acid ethyl esters capsules in any way and to ingest intact capsules only [see Dosage and Administration (2)] .

Instruct patients to take omega-3-acid ethyl esters capsules as prescribed.

If a dose is missed, advise patients to take it as soon as they remember.

However, if they miss one day of omega-3-acid ethyl esters capsules, they should not double the dose when they take Dispense with Patient Information available at ww1.apotex.com/products/us APOTEX INC.

Omega-3-Acid Ethyl Esters Capsules, USP 1 gram Manufactured in Canada for: Apotex Corp.

Weston, FL.

33326 USA Revision: 7 Revised: July 2021

DOSAGE AND ADMINISTRATION

2 Assess TG levels carefully before initiating therapy.

Identify other causes (e.g., diabetes mellitus, hypothyroidism, medications) of high TG levels and manage as appropriate [see Indications and Usage (1)] .

Patients should be placed on an appropriate lipid-lowering diet before receiving omega-3-acid ethyl esters capsules and should continue this diet during treatment with omega-3-acid ethyl esters capsules.

In clinical studies, omega-3-acid ethyl esters capsules were administered with meals.

The daily dose of omega-3-acid ethyl esters capsules is 4 grams per day.

The daily dose may be taken as a single 4-gram dose (4 capsules) or as two 2-gram doses (2 capsules given twice daily).

Patients should be advised to swallow omega-3-acid ethyl esters capsules whole.

Do not break open, crush, dissolve, or chew omega-3-acid ethyl esters capsules.

The daily dose of omega-3-acid ethyl esters is 4 grams per day taken as a single 4-gram dose (4 capsules) or as two 2-gram doses (2 capsules given twice daily).

( 2 ) Patients should be advised to swallow omega-3-acid ethyl esters capsules whole.

Do not break open, crush, dissolve, or chew omega-3-acid ethyl esters capsules.

( 2 )

cefuroxime 1.5 GM Injection

Generic Name: CEFUROXIME SODIUM
Brand Name: Cefuroxime sodium
  • Substance Name(s):
  • CEFUROXIME SODIUM

WARNINGS

BEFORE THERAPY WITH CEFUROXIME FOR INJECTION IS INSTITUTED, CAREFUL INQUIRY SHOULD BE MADE TO DETERMINE WHETHER THE PATIENT HAS HAD PREVIOUS HYPERSENSITIVITY REACTIONS TO CEPHALOSPORINS, PENICILLINS, OR OTHER DRUGS.

THIS PRODUCT SHOULD BE GIVEN CAUTIOUSLY TO PENICILLIN-SENSITIVE PATIENTS.

ANTIBIOTICS SHOULD BE ADMINISTERED WITH CAUTION TO ANY PATIENT WHO HAS DEMONSTRATED SOME FORM OF ALLERGY, PARTICULARLY TO DRUGS.

IF AN ALLERGIC REACTION TO CEFUROXIME FOR INJECTION OCCURS, DISCONTINUE THE DRUG.

SERIOUS ACUTE HYPERSENSITIVITY REACTIONS MAY REQUIRE EPINEPHRINE AND OTHER EMERGENCY MEASURES.

Clostridioides difficile associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including Cefuroxime for Injection, and may range in severity from mild diarrhea to fatal colitis.

Treatment with antibacterial agents alters the normal flora of the colon leading to overgrowth of C.

difficile.

C.

difficile produces toxins A and B which contribute to the development of CDAD.

Hypertoxin producing strains of C.

difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy.

CDAD must be considered in all patients who present with diarrhea following antibiotic use.

Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents.

If CDAD is suspected or confirmed, ongoing antibiotic use not directed against C.

difficile may need to be discontinued.

Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C.

difficile , and surgical evaluation should be instituted as clinically indicated.

When the colitis is not relieved by drug discontinuation or when it is severe, oral vancomycin is the treatment of choice for antibiotic-associated pseudomembranous colitis produced by Clostridioides difficile .

Other causes of colitis should also be considered.

OVERDOSAGE

Overdosage of cephalosporins can cause cerebral irritation leading to convulsions.

Serum levels of cefuroxime can be reduced by hemodialysis and peritoneal dialysis.

DESCRIPTION

Cefuroxime is a sterile semisynthetic, broad-spectrum, cephalosporin antibiotic for parenteral administration.

It is the sodium salt of (6R,7R)-3-[(carbamoyloxy)methyl]-7-[[(Z)-(furan-2-yl) (methoxyimino)acetyl] amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate, and it has the following chemical structure: The empirical formula is C 16 H 15 N 4 NaO 8 S, representing a molecular weight of 446.37.

Cefuroxime for Injection, USP contains approximately 54.2 mg (2.4 mEq) of sodium per gram of cefuroxime activity.

Cefuroxime for Injection, USP in sterile crystalline form is supplied in vials equivalent to 750 mg or 1.5 g of cefuroxime as cefuroxime sodium.

Solutions of Cefuroxime for Injection, USP range in color from light yellow to amber, depending on the concentration and diluent used.

The pH of freshly constituted solutions usually ranges from 6 to 8.5.

Chemical Structure

HOW SUPPLIED

Cefuroxime for Injection, USP is supplied as follows: NDC Cefuroxime for Injection, USP Package Factor 25021-118-10 750 mg equivalent of cefuroxime 25 vials per carton in a Single-Dose Vial 25021-119-20 1.5 grams equivalent of cefuroxime 25 vials per carton in a Single-Dose Vial Cefuroxime for Injection, USP is a dry, white to off-white powder.

Storage Conditions Store at 20° to 25°C (68° to 77°F).

[See USP Controlled Room Temperature.] Protect from light.

Sterile, Nonpyrogenic, Preservative-free.

The container closure is not made with natural rubber latex.

GERIATRIC USE

Geriatric Use Of the 1,914 subjects who received cefuroxime in 24 clinical studies of Cefuroxime for Injection, 901 (47%) were 65 years and older while 421 (22%) were 75 years and older.

No overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater susceptibility of some older individuals to drug effects cannot be ruled out.

This drug is known to be substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function.

Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function (see DOSAGE AND ADMINISTRATION ).

MECHANISM OF ACTION

Mechanism of Action Cefuroxime is a bactericidal agent that acts by inhibition of bacterial cell wall synthesis.

Cefuroxime has activity in the presence of some beta-lactamases, both penicillinases and cephalosporinases, of Gram-negative and Gram-positive bacteria.

INDICATIONS AND USAGE

Cefuroxime for Injection, USP is indicated for the treatment of patients with infections caused by susceptible strains of the designated organisms in the following diseases: Lower Respiratory Tract Infections , including pneumonia, caused by Streptococcus pneumoniae, Haemophilus influenzae (including ampicillin-resistant strains), Klebsiella spp., Staphylococcus aureus (penicillinase- and non-penicillinase- producing strains), Streptococcus pyogenes , and Escherichia coli .

Urinary Tract Infections caused by Escherichia coli and Klebsiella spp.

Skin and Skin-Structure Infections caused by Staphylococcus aureus (penicillinase- and non-penicillinase-producing strains), Streptococcus pyogenes , Escherichia coli, Klebsiella spp., and Enterobacter spp.

Septicemia caused by Staphylococcus aureus (penicillinase- and non-penicillinase- producing strains), Streptococcus pneumoniae, Escherichia coli, Haemophilus influenzae (including ampicillin-resistant strains), and Klebsiella spp.

Meningitis caused by Streptococcus pneumoniae, Haemophilus influenzae (including ampicillin-resistant strains), Neisseria meningitidis , and Staphylococcus aureus (penicillinase- and non-penicillinase-producing strains).

Gonorrhea: Uncomplicated and disseminated gonococcal infections due to Neisseria gonorrhoeae (penicillinase- and non-penicillinase-producing strains) in both males and females.

Bone and Joint Infections caused by Staphylococcus aureus (penicillinase- and non- penicillinase-producing strains).

Clinical microbiological studies in skin and skin-structure infections frequently reveal the growth of susceptible strains of both aerobic and anaerobic organisms.

Cefuroxime for Injection, USP has been used successfully in these mixed infections in which several organisms have been isolated.

In certain cases of confirmed or suspected gram-positive or gram-negative sepsis or in patients with other serious infections in which the causative organism has not been identified, Cefuroxime for Injection, USP may be used concomitantly with an aminoglycoside (see PRECAUTIONS ).

The recommended doses of both antibiotics may be given depending on the severity of the infection and the patient’s condition.

To reduce the development of drug-resistant bacteria and maintain the effectiveness of Cefuroxime for Injection, USP and other antibacterial drugs, Cefuroxime for Injection, USP should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria.

When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy.

In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.

Prevention The preoperative prophylactic administration of Cefuroxime for Injection, USP may prevent the growth of susceptible disease-causing bacteria and thereby may reduce the incidence of certain postoperative infections in patients undergoing surgical procedures (e.g., vaginal hysterectomy) that are classified as clean-contaminated or potentially contaminated procedures.

Effective prophylactic use of antibiotics in surgery depends on the time of administration.

Cefuroxime for Injection, USP should usually be given one-half to 1 hour before the operation to allow sufficient time to achieve effective antibiotic concentrations in the wound tissues during the procedure.

The dose should be repeated intraoperatively if the surgical procedure is lengthy.

Prophylactic administration is usually not required after the surgical procedure ends and should be stopped within 24 hours.

In the majority of surgical procedures, continuing prophylactic administration of any antibiotic does not reduce the incidence of subsequent infections but will increase the possibility of adverse reactions and the development of bacterial resistance.

The perioperative use of Cefuroxime for Injection, USP has also been effective during open heart surgery for surgical patients in whom infections at the operative site would present a serious risk.

For these patients it is recommended that therapy with Cefuroxime for Injection, USP be continued for at least 48 hours after the surgical procedure ends.

If an infection is present, specimens for culture should be obtained for the identification of the causative organism, and appropriate antimicrobial therapy should be instituted.

PEDIATRIC USE

Pediatric Use Safety and effectiveness in pediatric patients below 3 months of age have not been established.

Accumulation of other members of the cephalosporin class in newborn infants (with resulting prolongation of drug half-life) has been reported.

PREGNANCY

Pregnancy Teratogenic Effects Pregnancy Category B.

Reproduction studies have been performed in mice at doses up to 6,400 mg/kg/day (6.3 times the recommended maximum human dose based on mg/m 2 ) and rabbits at doses up to 400 mg/kg/day (2.1 times the recommended maximum human dose based on mg/m 2 ) and have revealed no evidence of impaired fertility or harm to the fetus due to cefuroxime.

There are, however, no adequate and well-controlled studies in pregnant women.

Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.

NUSRING MOTHERS

Nursing Mothers Since cefuroxime is excreted in human milk, caution should be exercised when Cefuroxime for Injection is administered to a nursing woman.

INFORMATION FOR PATIENTS

Information for Patients Patients should be counseled that antibacterial drugs, including Cefuroxime for Injection should only be used to treat bacterial infections.

They do not treat viral infections (e.g., the common cold).

When Cefuroxime for Injection is prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed.

Skipping doses or not completing the full course of therapy may: (1) decrease the effectiveness of the immediate treatment, and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by Cefuroxime for Injection or other antibacterial drugs in the future.

Diarrhea is a common problem caused by antibiotics which usually ends when the antibiotic is discontinued.

Sometimes after starting treatment with antibiotics, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as 2 or more months after having taken the last dose of the antibiotic.

If this occurs, patients should contact their physician as soon as possible.

DOSAGE AND ADMINISTRATION

Dosage Adults The usual adult dosage range for Cefuroxime for Injection is 750 mg to 1.5 grams every 8 hours, usually for 5 to 10 days.

In uncomplicated urinary tract infections, skin and skin-structure infections, disseminated gonococcal infections, and uncomplicated pneumonia, a 750-mg dose every 8 hours is recommended.

In severe or complicated infections, a 1.5-gram dose every 8 hours is recommended.

In bone and joint infections, a 1.5-gram dose every 8 hours is recommended.

In clinical trials, surgical intervention was performed when indicated as an adjunct to therapy with Cefuroxime for Injection.

A course of oral antibiotics was administered when appropriate following the completion of parenteral administration of Cefuroxime for Injection.

In life-threatening infections or infections due to less susceptible organisms, 1.5 grams every 6 hours may be required.

In bacterial meningitis, the dosage should not exceed 3 grams every 8 hours.

The recommended dosage for uncomplicated gonococcal infection is 1.5 grams given intramuscularly as a single dose at 2 different sites together with 1 gram of oral probenecid.

For preventive use for clean-contaminated or potentially contaminated surgical procedures, a 1.5-gram dose administered intravenously just before surgery (approximately one-half to 1 hour before the initial incision) is recommended.

Thereafter, give 750 mg intravenously or intramuscularly every 8 hours when the procedure is prolonged.

For preventive use during open heart surgery, a 1.5-gram dose administered intravenously at the induction of anesthesia and every 12 hours thereafter for a total of 6 grams is recommended.

Impaired Renal Function A reduced dosage must be employed when renal function is impaired.

Dosage should be determined by the degree of renal impairment and the susceptibility of the causative organism (see Table 2 ).

Table 2.

Dosage of Cefuroxime for Injection in Adults with Reduced Renal Function a Since Cefuroxime for Injection is dialyzable, patients on hemodialysis should be given a further dose at the end of the dialysis.

Creatinine Clearance (mL/min) Dose Frequency > 20 750 mg to 1.5 grams q8h 10 to 20 750 mg q12h < 10 750 mg q24h a When only serum creatinine is available, the following formula 1 (based on sex, weight, and age of the patient) may be used to convert this value into creatinine clearance.

The serum creatinine should represent a steady state of renal function.

NOTE: As with antibiotic therapy in general, administration of Cefuroxime for Injection should be continued for a minimum of 48 to 72 hours after the patient becomes asymptomatic or after evidence of bacterial eradication has been obtained; a minimum of 10 days of treatment is recommended in infections caused by Streptococcus pyogenes in order to guard against the risk of rheumatic fever or glomerulonephritis; frequent bacteriologic and clinical appraisal is necessary during therapy of chronic urinary tract infection and may be required for several months after therapy has been completed; persistent infections may require treatment for several weeks; and doses smaller than those indicated above should not be used.

In staphylococcal and other infections involving a collection of pus, surgical drainage should be carried out where indicated.

Equation Pediatric Patients Above 3 Months of Age Administration of 50 to 100 mg/kg/day in equally divided doses every 6 to 8 hours has been successful for most infections susceptible to cefuroxime.

The higher dosage of 100 mg/kg/day (not to exceed the maximum adult dosage) should be used for the more severe or serious infections.

In bone and joint infections, 150 mg/kg/day (not to exceed the maximum adult dosage) is recommended in equally divided doses every 8 hours.

In clinical trials, a course of oral antibiotics was administered to pediatric patients following the completion of parenteral administration of Cefuroxime for Injection.

In cases of bacterial meningitis, a larger dosage of Cefuroxime for Injection is recommended, 200 to 240 mg/kg/day intravenously in divided doses every 6 to 8 hours.

In pediatric patients with renal insufficiency, the frequency of dosing should be modified consistent with the recommendations for adults.

Preparation of Solution and Suspension The directions for preparing Cefuroxime for Injection for both IV and IM use are summarized in Table 3 .

For Intramuscular Use Each 750-mg vial of Cefuroxime for Injection should be constituted with 3 mL of Sterile Water for Injection.

Shake gently to disperse and withdraw completely the resulting suspension for injection.

For Intravenous Use Each 750-mg vial should be constituted with 8.3 mL of Sterile Water for Injection.

Withdraw completely the resulting solution for injection.

Each 1.5-gram vial should be constituted with 16 mL of Sterile Water for Injection, and the solution should be completely withdrawn for injection.

Table 3.

Preparation of Solution and Suspension a Note: Cefuroxime for Injection is a suspension at IM concentrations.

Strength Amount of Diluent to be Added (mL) Volume to be Withdrawn Approximate Cefuroxime Concentration (mg/mL) 750-mg Vial 3 (IM) Total a 225 750-mg Vial 8.3 (IV) Total 90 1.5-gram Vial 16 (IV) Total 90 Administration After constitution, Cefuroxime for Injection may be given intravenously or by deep IM injection into a large muscle mass (such as the gluteus or lateral part of the thigh).

Before injecting intramuscularly, aspiration is necessary to avoid inadvertent injection into a blood vessel.

Intravenous Administration The IV route may be preferable for patients with bacterial septicemia or other severe or life-threatening infections or for patients who may be poor risks because of lowered resistance, particularly if shock is present or impending.

For direct intermittent IV administration , slowly inject the solution into a vein over a period of 3 to 5 minutes or give it through the tubing system by which the patient is also receiving other IV solutions.

For intermittent IV infusion with a Y-type administration set , dosing can be accomplished through the tubing system by which the patient may be receiving other IV solutions.

However, during infusion of the solution containing Cefuroxime for Injection, it is advisable to temporarily discontinue administration of any other solutions at the same site.

For continuous IV infusion , a solution of Cefuroxime for Injection may be added to an IV infusion pack containing one of the following fluids: 0.9% Sodium Chloride Injection; 5% Dextrose Injection; 10% Dextrose Injection; 5% Dextrose and 0.9% Sodium Chloride Injection; 5% Dextrose and 0.45% Sodium Chloride Injection; or 1/6 M Sodium Lactate Injection.

Solutions of Cefuroxime for Injection, like those of most beta-lactam antibiotics, should not be added to solutions of aminoglycoside antibiotics because of potential interaction.

However, if concurrent therapy with Cefuroxime for Injection and an aminoglycoside is indicated, each of these antibiotics can be administered separately to the same patient.

tacrolimus 5 MG (as anhydrous tacrolimus) Oral Capsule

Generic Name: TACROLIMUS
Brand Name: Tacrolimus
  • Substance Name(s):
  • TACROLIMUS

DRUG INTERACTIONS

7 Mycophenolic Acid Products: Can increase MPA exposure after crossover from cyclosporine to tacrolimus; monitor for MPA-related adverse reactions and adjust MMF or MPA-dose as needed.

( 7.1 ) Nelfinavir and Grapefruit Juice: Increased tacrolimus concentrations via CYP3A inhibition; avoid concomitant use.

( 7.2 ) CYP3A Inhibitors: Increased tacrolimus concentrations; monitor concentrations and adjust tacrolimus dose as needed.

( 5.11 , 7.2 ) CYP3A4 Inducers: Decreased tacrolimus concentrations; monitor concentrations and adjust tacrolimus dose as needed.

( 5.11 , 7.2 ) 7.1 Mycophenolic Acid When tacrolimus is prescribed with a given dose of a mycophenolic acid (MPA) product, exposure to MPA is higher with tacrolimus co-administration than with cyclosporine co-administration because cyclosporine interrupts the enterohepatic recirculation of MPA while tacrolimus does not.

Monitor for MPA associated adverse reactions and reduce the dose of concomitantly administered mycophenolic acid products as needed.

7.2 Effects of Other Drugs on Tacrolimus Table 15 displays the effects of other drugs on tacrolimus.

Table 15: Effects of Other Drugs/Substances on Tacrolimus* Drug/Substance Class or Name Drug Interaction Effect Recommendations Grapefruit or grapefruit juice † May increase tacrolimus whole blood trough concentrations and increase the risk of serious adverse reactions (e.g., neurotoxicity, QT prolongation) [see Warnings and Precautions ( 5.6 , 5.11 , 5.12 )].

Avoid grapefruit or grapefruit juice.

Strong CYP3A Inducers # : Antimycobacterials (e.g., rifampin, rifabutin),anticonvulsants (e.g., phenytoin, carbamazepine and phenobarbital), St John’s Wort May decrease tacrolimus whole blood trough concentrations and increase the risk of rejection [see Warnings and Precautions ( 5.11 )].

Increase tacrolimus dose and monitor tacrolimus whole blood trough concentrations [see Dosage and Administration (2.2, 2.6 ) and Clinical Pharmacology ( 12.3 )].

Strong CYP3A Inhibitors # : Protease inhibitors (e.g, nelfinavir, telaprevir, boceprevir, ritonavir), azole antifungals (e.g., voriconazole, posaconazole, itraconazole, ketoconazole), antibiotics (e.g., clarithromycin, troleandomycin, chloramphenicol), nefazodone, schisandra sphenanthera extracts May increase tacrolimus whole blood trough concentrations and increase the risk of serious adverse reactions (e.g., neurotoxicity, QT prolongation) [see Warnings and Precautions ( 5.6 , 5.11 , 5.12 )].

Reduce tacrolimus dose (for voriconazole and posaconazole, give one-third of the original dose) and adjust dose based on tacrolimus whole blood trough concentrations [see Dosage and Administration ( 2.2 , 2.6 ) and Clinical Pharmacology ( 12.3 )].

Mild or Moderate CYP3A Inhibitors: Clotrimazole, antibiotics (e.g., erythromycin, fluconazole), calcium channel blockers (e.g., verapamil, diltiazem, nifedipine, nicardipine), amiodarone, danazol, ethinyl estradiol, cimetidine, lansoprazole and omeprazole May increase tacrolimus whole blood trough concentrations and increase the risk of serious adverse reactions (e.g., neurotoxicity, QT prolongation) [see Warnings and Precautions ( 5.6 , 5.11 , 5.12 )].

Monitor tacrolimus whole blood trough concentrations and reduce tacrolimus dose if needed [see Dosage andAdministration ( 2.2 , 2.6 ) and Clinical Pharmacology ( 12.3 )].

Other drugs, such as: Magnesium and aluminum hydroxideantacids Metoclopramide May increase tacrolimus whole blood trough concentrations and increase the risk of serious adverse reactions (e.g., neurotoxicity, QT prolongation) [see Warnings and Precautions ( 5.6 , 5.11 , 5.12 )].

Monitor tacrolimus whole blood trough concentrations and reduce tacrolimus dose if needed [see Dosage and Administration ( 2.2 , 2.6 ) and Clinical Pharmacology ( 12.3 )].

Mild or Moderate CYP3A Inducers Methylprednisolone, prednisone May decrease tacrolimus concentrations Monitor tacrolimus whole blood trough concentrations and adjust tacrolimus dose if needed [see Dosage and Administration ( 2.2 , 2.6 )].

* Tacrolimus dosage adjustment recommendation based on observed effect of coadministered drug on tacrolimus exposures [see Clinical Pharmacology ( 12.3 )] , literature reports of altered tacrolimus exposures, or the other drug’s known CYP3A inhibitor/inducer status.

† High dose or double strength grapefruit juice is a strong CYP3A inhibitor; low dose or single strength grapefruit juice is a moderate CYP3A inhibitor.

# Strong CYP3A inhibitor/inducer, based on reported effect on exposures to tacrolimus along with supporting in vitro CYP3A inhibitor/inducer data, or based on drug-drug interaction studies with midazolam (sensitive CYP3A probe substrate).

OVERDOSAGE

10 Limited overdosage experience is available.

Acute overdosages of up to 30 times the intended dose have been reported.

Almost all cases have been asymptomatic and all patients recovered with no sequelae.

Acute overdosage was sometimes followed by adverse reactions consistent with those listed in Adverse Reactions ( 6 ) (including tremors, abnormal renal function, hypertension, and peripheral edema); in one case of acute overdosage, transient urticaria and lethargy were observed.

Based on the poor aqueous solubility and extensive erythrocyte and plasma protein binding, it is anticipated that tacrolimus is not dialyzable to any significant extent; there is no experience with charcoal hemoperfusion.

The oral use of activated charcoal has been reported in treating acute overdoses, but experience has not been sufficient to warrant recommending its use.

General supportive measures and treatment of specific symptoms should be followed in all cases of overdosage.

In acute oral and IV toxicity studies, mortalities were seen at or above the following doses: in adult rats, 52 times the recommended human oral dose; in immature rats, 16 times the recommended oral dose; and in adult rats, 16 times the recommended human IV dose (all based on body surface area corrections).

DESCRIPTION

11 Tacrolimus, previously known as FK506, is the active ingredient in Tacrolimus Capsules.

Tacrolimus is a calcineurin-inhibitor immunosuppressant produced by Streptomyces tsukubaensis.

Chemically, tacrolimus is designated as [3S [3R*[E(1S*, 3S*,4S*)],4S*,5R*,8S*,9E,12R*,14R*,15S*,16R*,18S*,19S*,26aR*]] 5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-5,19-dihydroxy-3-[2-(4-hydroxy-3-methoxycyclohexyl)-1methylethenyl]-14,16-dimethoxy-4,10,12,18-tetramethyl-8-(2-propenyl)-15,19-epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone, monohydrate.

The chemical structure of tacrolimus USP is: Tacrolimus USP has an empirical formula of C 44 H 69 NO 12 H 2 O and a formula weight of 822.03.

Tacrolimus appears as white to off white powder.

It is soluble in acetone, chloroform, ethyl acetate and insoluble in water.

Tacrolimus Capsules, USP are available for oral administration as capsules (tacrolimus capsules) containing the equivalent of 0.5 mg, 1 mg or 5 mg of tacrolimus USP.

Inactive ingredients include croscarmellose sodium NF, hypromellose USP, lactose anhydrous USNF, and magnesium stearate USNF.

The 0.5 mg capsule shell contains ferric oxide, gelatin and titanium dioxide.

The 1 mg capsule shell contains gelatin and titanium dioxide .

The 5 mg capsule shell contains ferric oxide, gelatin, and titanium dioxide.

structure

CLINICAL STUDIES

6.1 Clinical Studies Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

In addition, the clinical trials were not designed to establish comparative differences across study arms with regards to the adverse reactions discussed below.

Kidney Transplantation The incidence of adverse reactions was determined in three randomized kidney transplant trials.

One of the trials used azathioprine (AZA) and corticosteroids and two of the trials used mycophenolate mofetil (MMF) and corticosteroids concomitantly for maintenance immunosuppression.

Tacrolimus based immunosuppression in conjunction with azathioprine and corticosteroids following kidney transplantation was assessed in a trial where 205 patients received tacrolimus based immunosuppression and 207 patients received cyclosporine-based immunosuppression.

The trial population had a mean age of 43 years (mean ± SD was 43 ± 13 years on tacrolimus and 44 ± 12 years on cyclosporine arm), the distribution was 61% male, and the composition was White (58%), African-American (25%), Hispanic (12%), and Other (5%).

The 12-month post-transplant information from this trial is presented below.

The most common adverse reactions (≥ 30%) observed in tacrolimus treated kidney transplant patients are: infection, tremor, hypertension, abnormal renal function, constipation, diarrhea, headache, abdominal pain, insomnia, nausea, hypomagnesemia, urinary tract infection, hypophosphatemia, peripheral edema, asthenia, pain, hyperlipidemia, hyperkalemia, and anemia.

Based on reported adverse reactions terms related to decreased renal function, nephrotoxicity was reported in approximately 52% of kidney transplantation patients.

Adverse reactions that occurred in ≥15% of kidney transplant patients treated with tacrolimus in conjunction with azathioprine are presented below: Table 4.

Kidney Transplantation: Adverse Reactions Occurring in ≥ 15% of Patients Treated with Tacrolimus in Conjunction with Azathioprine (AZA) Tacrolimus/AZA (N=205) Cyclosporine/AZA (N=207) Nervous System Tremor 54% 34% Headache 44% 38% Insomnia 32% 30% Paresthesia 23% 16% Dizziness 19% 16% Gastrointestinal Diarrhea 44% 41% Nausea 38% 36% Constipation 35% 43% Vomiting 29% 23% Dyspepsia 28% 20% Cardiovascular Hypertension 50% 52% Chest Pain 19% 13% Urogenital Creatinine Increased 45% 42% Urinary Tract Infection 34% 35% Metabolic and Nutritional Hypophosphatemia 49% 53% Hypomagnesemia 34% 17% Hyperlipemia 31% 38% Hyperkalemia 31% 32% Diabetes Mellitus 24% 9% Hypokalemia 22% 25% Hyperglycemia 22% 16% Edema 18% 19% Hemic and Lymphatic Anemia 30% 24% Leukopenia 15% 17% Miscellaneous Infection 45% 49% Peripheral Edema 36% 48% Asthenia 34% 30% Abdominal Pain 33% 31% Pain 32% 30% Fever 29% 29% Back Pain 24% 20% Respiratory System Dyspnea 22% 18% Cough Increased 18% 15% Musculoskeletal Arthralgia 25% 24% Skin Rash 17% 12% Pruritus 15% 7% Two trials were conducted for tacrolimus based immunosuppression in conjunction with MMF and corticosteroids.

In the non-US trial (Study 1), the incidence of adverse reactions was based on 1195 kidney transplant patients that received tacrolimus (Group C, n = 403), or one of two cyclosporine (CsA) regimens (Group A, n = 384 and Group B, n = 408) in combination with MMF and corticosteroids; all patients, except those in one of the two cyclosporine groups, also received induction with daclizumab.

The trial population had a mean age of 46 years (range 17 to 76), the distribution was 65% male, and the composition was 93% Caucasian.

The 12-month post-transplant information from this trial is presented below.

Adverse reactions that occurred in ≥10% of kidney transplant patients treated with tacrolimus in conjunction with MMF in Study 1 [Note: This trial was conducted entirely outside of the United States.

Such trials often report a lower incidence of adverse reactions in comparison to U.S.

trials] are presented below: Table 5.

Kidney Transplantation: Adverse Reactions Occurring in ≥ 10% of Patients Treated with Tacrolimus in Conjunction with MMF (Study 1) Tacrolimus Capsules USP (Group C) (N=403) Cyclosporine (Group A) (N=384) Cyclosporine (Group B) (N=408) Diarrhea 25% 16% 13% Urinary tract infection 24% 28% 24% Anemia 17% 19% 17% Hypertension 13% 14% 12% Leucopenia 13% 10% 10% Edema peripheral 11% 12% 13% Hyperlipidemia 10% 15% 13% Key: Group A = CsA/MMF/CS, B = CsA/MMF/CS/Daclizumab, C = Tac/MMF/CS/Daclizumab CsA = Cyclosporine, CS = Corticosteroids, Tac = Tacrolimus, MMF = mycophenolate mofetil In the U.S.

trial (Study 2) with tacrolimus based immunosuppression in conjunction with MMF and corticosteroids, 424 kidney transplant patients received tacrolimus (n = 212) or cyclosporine (n = 212) in combination with MMF1 gram twice daily, basiliximab induction, and corticosteroids.

The trial population had a mean age of 48 years (range 17 to 77), the distribution was 63% male, and the composition was White (74%), African-American (20%), Asian (3%), and Other (3%).

The 12-month post-transplant information from this trial is presented below.

Adverse reactions that occurred in ≥ 15% of kidney transplant patients treated with tacrolimus in conjunction with MMF in Study 2 are presented below: Table 6.

Kidney Transplantation: Adverse Reactions Occurring in ≥ 15% of Patients Treated with Tacrolimus in Conjunction with MMF (Study 2) Tacrolimus Capsules USP / MMF (N=212) Cyclosporine / MMF (N=212) Gastrointestinal Disorder Diarrhea 44% 26% Nausea 39% 47% Constipation 36% 41% Vomiting 26% 25% Dyspepsia 18% 15% Injury, Poisoning, and Procedural Complications Post Procedural Pain 29% 27% Incision Site Complication 28% 23% Graft Dysfunction 24% 18% Metabolism and Nutrition Disorder Hypomagnesemia 28% 22% Hypophosphatemia 28% 21% Hyperkalemia 26% 19% Hyperglycemia 21% 15% Hyperlipidemia 18% 25% Hypokalemia 16% 18% Nervous System Disorder Tremor 34% 20% Headache 24% 25% Blood and Lymphatic System Disorders Anemia 30% 28% Leukopenia 16% 12% Miscellaneous Edema Peripheral 35% 46% Hypertension 32% 35% Insomnia 30% 21% Urinary Tract Infection 26% 22% Blood Creatinine Increased 23% 23% Less frequently observed adverse reactions in kidney transplantation patients are described under the subsection “Less Frequently Reported Adverse Reactions (> 3% and < 15%) in Liver, Kidney, and Heart Transplant Studies”.

Liver Transplantation There were two randomized comparative liver transplant trials.

In the U.S.

trial, 263 adult and pediatric patients received tacrolimus and steroids and 266 patients received cyclosporine-based immunosuppressive regimen (CsA/AZA).

The trial population had a mean age of 44 years (range 0.4 to 70), the distribution was 52% male, and the composition was White (78%), African-American (5%), Asian (2%), Hispanic (13%), and Other (2%).

In the European trial, 270 patients received tacrolimus and steroids and 275 patients received CsA/AZA.

The trial population had a mean age of 46 years (range 15 to 68), the distribution was 59% male, and the composition was White (95.4%), Black (1%), Asian (2%), and Other (2%).

The proportion of patients reporting more than one adverse event was > 99% in both the tacrolimus group and the CsA/AZA group.

Precautions must be taken when comparing the incidence of adverse reactions in the U.S.

trial to that in the European trial.

The 12-month post-transplant information from the U.S.

trial and from the European trial is presented below.

The two trials also included different patient populations and patients were treated with immunosuppressive regimens of differing intensities.

Adverse reactions reported in ≥ 15% in tacrolimus patients (combined trial results) are presented below for the two controlled trials in liver transplantation.

The most common adverse reactions (≥ 40%) observed in tacrolimus treated liver transplant patients are: tremor, headache, diarrhea, hypertension, nausea, abnormal renal function, abdominal pain, insomnia, paresthesia, anemia, pain, fever, asthenia, hyperkalemia, hypomagnesemia, and hyperglycemia.

These all occur with oral and IV administration of Tacrolimus and some may respond to a reduction in dosing (e.g., tremor, headache, paresthesia, hypertension).

Diarrhea was sometimes associated with other gastrointestinal complaints such as nausea and vomiting.

Based on reported adverse reactions terms related to decreased renal function, nephrotoxicity was reported in approximately 40% and 36% of liver transplantation patients receiving tacrolimus in the U.S.

and European randomized trials.

Table 7.

Liver Transplantation: Adverse Reactions Occurring in ≥ 15% of Patients Treated with Tacrolimus U.S .

TRIAL EUROPEAN TRIAL Tacrolimus (N=250) C yclosporine/AZA (N=250) T acrolimus (N=264) Cyclosporine /AZA (N=265 ) Nervous System Headache 64% 60% 37% 26% Insomnia 64% 68% 32% 23% Tremor 56% 46% 48% 32% Paresthesia 40% 30% 17% 17% Gastrointestinal Diarrhea 72% 47% 37% 27% Nausea 46% 37% 32% 27% LFT Abnormal 36% 30% 6% 5% Anorexia 34% 24% 7% 5% Vomiting 27% 15% 14% 11% Constipation 24% 27% 23% 21% Cardiovascular Hypertension 47% 56% 38% 43% Urogenital Kidney Function Abnormal 40% 27% 36% 23% Creatinine Increased 39% 25% 24% 19% BUN Increased 30% 22% 12% 9% Oliguria 18% 15% 19% 12% Urinary Tract Infection 16% 18% 21% 19% Metabolic and Nutritional Hypomagnesemia 48% 45% 16% 9% Hyperglycemia 47% 38% 33% 22% Hyperkalemia 45% 26% 13% 9% Hypokalemia 29% 34% 13% 16% Hemic and Lymphatic Anemia 47% 38% 5% 1% Leukocytosis 32% 26% 8% 8% Thrombocytopenia 24% 20% 14% 19% Miscellaneous Pain 63% 57% 24% 22% Abdominal Pain 59% 54% 29% 22% Asthenia 52% 48% 11% 7% Fever 48% 56% 19% 22% Back Pain 30% 29% 17% 17% Ascites 27% 22% 7% 8% Peripheral Edema 26% 26% 12% 14% Respiratory System Pleural Effusion 30% 32% 36% 35% Dyspnea 29% 23% 5% 4% Atelectasis 28% 30% 5% 4% Skin and Appendages Pruritus 36% 20% 15% 7% Rash 24% 19% 10% 4% Table 8.

Pediatric Liver Transplantation: Adverse Reactions Occurring in > 10% of Patients Treated with Tacrolimus Granules (STUDY 01-13) Tacrolimus Granules (N=91) Cyclosporine (N=90) Body as a Whole Fever 46% 51% Infection 25% 29% Sepsis 22% 20% CMV Infection 15% 24% EBV Infection 26% 11% Ascites 17% 20% Peritonitis 12% 7% Cardiovascular System Hypertension 39% 47% Digestive System Liver Function Tests Abnormal 37% 28% Diarrhea 26% 26% Vomiting 15% 13% Gastrointestinal Hemorrhage 11% 12% Bile Duct Disorder 12% 8% Gastroenteritis 12% 4% Hemic and Lymphatic System Anemia 29% 19% Metabolic and Nutritional Disorders Hypomagnesemia 40% 29% Acidosis 26% 17% Hyperkalemia 12% 10% Respiratory System Pleural Effusion 22% 19% Bronchitis 11% 8% Urogenital System Kidney Function Abnormal 13% 14% Less frequently observed adverse reactions in liver transplantation patients are described under the subsection “Less Frequently Reported Adverse Reactions (> 3% and < 15%) in Liver, Kidney, and Heart Transplant Studies” Heart Transplantation The incidence of adverse reactions was determined based on two trials in primary orthotopic heart transplantation.

In a trial conducted in Europe, 314 patients received a regimen of antibody induction, corticosteroids, and azathioprine (AZA) in combination with Tacrolimus (n = 157) or cyclosporine (n = 157) for 18 months.

The trial population had a mean age of 51 years (range 18 to 65), the distribution was 82% male, and the composition was White (96%), Black (3%), and other (1%).

The most common adverse reactions (≥ 15%) observed in Tacrolimus treated heart transplant patients are: abnormal renal function, hypertension, diabetes mellitus, CMV infection, tremor, hyperglycemia, leukopenia, infection, anemia, bronchitis, pericardial effusion, urinary tract infection, and hyperlipemia.

Based on reported adverse reactions terms related to decreased renal function, nephrotoxicity was reported in approximately 59% of heart transplantation patients in the European trial.

Adverse reactions in heart transplant patients in the European trial are presented below: Table 9.

Heart Transplantation: Adverse Reactions Occurring in ≥ 15% of Patients Treated with Tacrolimus Capsules USP in Conjunction with Azathioprine (AZA) Tacrolimus Capsules USP /AZA (n=157 ) Cyclosporine/AZA (n=157) Cardiovascular System Hypertension 62% 69% Pericardial Effusion 15% 14% Body as a Whole CMV Infection 32% 30% Infection 24% 21% Metabolic and Nutritional Disorders Diabetes Mellitus 26% 16% Hyperglycemia 23% 17% Hyperlipemia 18% 27% Hemic and Lymphatic System Anemia 50% 36% Leukopenia 48% 39% Urogenital System Kidney Function Abnormal 56% 57% Urinary Tract Infection 16% 12% Respiratory System Bronchitis 17% 18% Nervous System Tremor 15% 6% In the European trial, the cyclosporine trough concentrations were above the pre-defined target range (i.e., 100 to 200 ng/mL) at Day 122 and beyond in 32% to 68% of the patients in the cyclosporine treatment arm, whereas the tacrolimus trough concentrations were within the pre-defined target range (i.e., 5 to 15 ng/mL) in 74% to 86% of the patients in the tacrolimus treatment arm.

In a U.S.

trial, the incidence of adverse reactions was based on 331 heart transplant patients that received corticosteroids and tacrolimus in combination with sirolimus (n=109), tacrolimus in combination with MMF (n=107) or cyclosporine modified in combination with MMF (n=115) for 1 year.

The trial population had a mean age of 53 years (range 18 to 75), the distribution was 78% male, and the composition was White (83%), African-American (13%) and other (4%).

Only selected targeted treatment-emergent adverse reactions were collected in the U.S.

heart transplantation trial.

Those reactions that were reported at a rate of 15% or greater in patients treated with tacrolimus and MMF include the following: any target adverse reactions (99%), hypertension (89%), hyperglycemia requiring antihyperglycemic therapy (70%), hypertriglyceridemia (65%), anemia (hemoglobin 140 mg/dL (on two separate occasions) (61%), hypercholesterolemia (57%), hyperlipidemia (34%), WBCs < 3000 cells/mcL (34%), serious bacterial infections (30%), magnesium < 1.2 mEq/L (24%), platelet count < 75,000 cells/mcL (19%), and other opportunistic infections (15%).

Other targeted treatment-emergent adverse reactions in tacrolimus treated patients occurred at a rate of less than 15%, and include the following: Cushingoid features, impaired wound healing, hyperkalemia, Candida infection, and CMV infection/syndrome.

Other less frequently observed adverse reactions in heart transplantation patients are described under the subsection “Less Frequently Reported Adverse Reactions (> 3% and < 15%) in Liver, Kidney and Heart Transplant Studies.” New Onset Diabetes After Transplant Kidney Transplantation New Onset Diabetes After Transplant (NODAT) is defined as a composite of fasting plasma glucose ≥ 126 mg/dL, HbA1C ≥ 6%, insulin use ≥ 30 days, or oral hypoglycemic use.

In a trial in kidney transplant patients (Study 2), NODAT was observed in 75% in the tacrolimus treated and 61% in the NEORAL-treated patients without pre-transplant history of diabetes mellitus ( Table 10 ) [see Clinical Studies ( 14.1 ).

Table 10.

Incidence of New Onset Diabetes After Transplant at 1 year in Kidney Transplant Recipients in a Phase 3 Trial (Study 2) Parameter Treatment Group Tacrolimus MMF (n = 212) Neoral / MMF (n = 212) NODAT 112/150 (75%) 93/152 (61%) Fasting Plasma Glucose ≥ 126 mg/dL 96/150 (64%) 80/152 (53%) HbA1C ≥ 6% 59/150 (39%) 28/152 (18%) Insulin Use ≥ 30 days 9/150 (6%) 4/152 (3%) Oral Hypoglycemic Use 15/150 (10%) 5/152 (3%) In early trials of tacrolimus, Post-Transplant Diabetes Mellitus (PTDM) was evaluated with a more limited criterion of “use of insulin for 30 or more consecutive days with < 5-day gap” in patients without a prior history of insulin-dependent diabetes mellitus or non-insulin dependent diabetes mellitus.

Data are presented in Tables 11 to 14.

PTDM was reported in 20% of Tacrolimus /Azathioprine (AZA)-treated kidney transplant patients without pre-transplant history of diabetes mellitus in a Phase 3 trial ( Table 11 ).

The median time to onset of PTDM was 68 days.

Insulin dependence was reversible in 15% of these PTDM patients at one year and in 50% at 2 years post-transplant.

African-American and Hispanic kidney transplant patients were at an increased risk of development of PTDM ( Table 12 ).

Table 11.

Incidence of Post-Transplant Diabetes Mellitus and Insulin Use at 2 Years in Kidney Transplant Recipients in a Phase 3 Trial using Azathioprine (AZA) Status of PTDM* Tacrolimus/AZA CsA/AZA Patients without pretransplant history of diabetes mellitus.

151 151 New onset PTDM * , 1 st Year 30/151 (20%) 6/151 (4%) Still insulin dependent at one year in those without prior history of diabetes.

25/151 (17%) 5/151 (3%) New onset PTDM * post 1 year 1 0 Patients with PTDM * at 2 years 16/151 (11%) 5/151 (3%) *Use of insulin for 30 or more consecutive days, with < 5 day gap, without a prior history of insulin-dependent diabetes mellitus or non-insulin dependent diabetes mellitus.

T able 12.

Development of Post-Transplant Diabetes Mellitus by Race or Ethnicity and by Treatment Group During First Year Post Kidney Transplantation in a Phase 3 Trial Patient Race Patients Who Developed PTDM * Tacrolimus Cyclosporine African-American 15/41 (37%) 3 (8%) Hispanic 5/17 (29%) 1 (6%) Caucasian 10/82 (12%) 1 (1%) Other 0/11 (0%) 1 (10%) Total 30/151 (20%) 6 (4%) * Use of insulin for 30 or more consecutive days, with < 5 day gap, without a prior history of insulin-dependent diabetes mellitus or non-insulin dependent diabetes mellitus.

Liver Transplantation Insulin-dependent PTDM was reported in 18% and 11% of tacrolimus treated liver transplant patients and was reversible in 45% and 31% of these patients at 1 year post-transplant, in the U.S.

and European randomized trials, respectively ( Table 13 ).

Hyperglycemia was associated with the use of tacrolimus in 47% and 33% of liver transplant recipients in the U.S.

and European randomized trials, respectively, and may require treatment [see Adverse Reactions ( 6.1 )].

Table 13.

Incidence of Post-Transplant Diabetes Mellitus and Insulin Use at 1 Year in Liver Transplant Recipients Status of PTDM * US Trial European Trial Tacrolimus Cyclosporine Tacrolimus Cyclosporine Patients at risk † 239 236 239 249 New Onset PTDM * 42 (18%) 30 (13%) 26 (11%) 12 (5%) Patients still on insulin at 1 year 23 (10%) 19 (8%) 18 (8%) 6 (2%) *Use of insulin for 30 or more consecutive days, with < 5 day gap, without a prior history of insulin-dependent diabetes mellitus or non-insulin dependent diabetes mellitus.

† Patients without pre-transplant history of dibetes mellitus .

Heart Transplantation Insulin-dependent PTDM was reported in 13% and 22% of tacrolimus treated heart transplant patients receiving mycophenolate mofetil (MMF) or azathioprine (AZA) and was reversible in 30% and 17% of these patients at one year post-transplant, in the U.S.

and European randomized trials, respectively ( Table 14 ).

Hyperglycemia defined as two fasting plasma glucose levels ≥ 126 mg/dL was reported with the use of tacrolimus plus MMF or AZA in 32% and 35% of heart transplant recipients in the U.S.

and European randomized trials, respectively, and may require treatment [see Adverse Reactions ( 6.1 )].

Table 14.

Incidence of Post-Transplant Diabetes Mellitus and Insulin Use at 1 Year in Heart Transplant Recipients Status of PTDM* US Trial European Trial Tacrolimus MMF Cyclosporine/MM F Tacrolimus/AZA Cyclosporine/AZA Patients at risk † 75 83 132 138 New Onset PTDM* 10 (13%) 6 (7%) 29 (22%) 5 (4%) Patients still on insulin at 1 year ‡ 7 (9%) 1 (1%) 24 (18%) 4 (3%) * Use of insulin for 30 or more consecutive days without a prior history of insulin-dependent diabetes mellitus or non-insulin dependent diabetes mellitus.

† Patients without pre-transplant history of diabetes mellitus.

‡ 7-12 months for the U.S.

trial.

Less Frequently Reported Adverse Reactions (> 3% and < 15%) in Liver, Kidney, and Heart Transplant Studies The following adverse reactions were reported in either liver, kidney, and/or heart transplant recipients who were treated with tacrolimus in clinical trials.

Nervous System [see Warnings and Precautions (5.6)] : Abnormal dreams, agitation, amnesia, anxiety, confusion, convulsion, crying, depression, elevated mood, emotional lability, encephalopathy, hemorrhagic stroke, hallucinations, hypertonia, incoordination, monoparesis, myoclonus, nerve compression, nervousness, neuralgia, neuropathy, paralysis flaccid, psychomotor skills impaired, psychosis, quadriparesis, somnolence, thinking abnormal, vertigo, writing impaired Special Senses: Abnormal vision, amblyopia, ear pain, otitis media, tinnitus Gastrointestinal: Cholangitis, cholestatic jaundice, duodenitis, dysphagia, esophagitis, flatulence, gastritis, gastroesophagitis, gastrointestinal hemorrhage, GGT increase, GI disorder, GI perforation, hepatitis, hepatitis granulomatous, ileus, increased appetite, jaundice, liver damage, esophagitis ulcerative, oral moniliasis, pancreatic pseudocyst, stomatitis Cardiovascular: Abnormal ECG, angina pectoris, arrhythmia, atrial fibrillation, atrial flutter, bradycardia, cardiac fibrillation, cardiopulmonary failure, congestive heart failure, deep thrombophlebitis, echocardiogram abnormal, electrocardiogram QRS complex abnormal, electrocardiogram ST segment abnormal, heart failure, heart rate decreased, hemorrhage, hypotension, phlebitis, postural hypotension, syncope, tachycardia, thrombosis, vasodilatation Urogenital: Acute kidney failure [see Warnings and Precautions ( 5.5 )] , albuminuria, BK nephropathy, bladder spasm, cystitis, dysuria, hematuria, hydronephrosis, kidney failure, kidney tubular necrosis, nocturia, pyuria, toxic nephropathy, urge incontinence, urinary frequency, urinary incontinence, urinary retention, vaginitis Metabolic/Nutritional: Acidosis, alkaline phosphatase increased, alkalosis, ALT (SGPT) increased, AST (SGOT) increased, bicarbonate decreased, bilirubinemia, dehydration, GGT increased, gout, healing abnormal, hypercalcemia, hypercholesterolemia, hyperphosphatemia, hyperuricemia, hypervolemia, hypocalcemia, hypoglycemia, hyponatremia, hypoproteinemia, lactic dehydrogenase increase, weight gain Endocrine: Cushing’s syndrome Hemic/Lymphatic: Coagulation disorder, ecchymosis, hematocrit increased, hypochromic anemia, leukocytosis, polycythemia, prothrombin decreased, serum iron decreased Miscellaneous: Abdomen enlarged, abscess, accidental injury, allergic reaction, cellulitis, chills, fall, flu syndrome, generalized edema, hernia, mobility decreased, peritonitis, photosensitivity reaction, sepsis, temperature intolerance, ulcer Musculoskeletal: Arthralgia, cramps, generalized spasm, leg cramps, myalgia, myasthenia, osteoporosis Respiratory: Asthma, emphysema, hiccups, lung function decreased, pharyngitis, pneumonia, pneumothorax, pulmonary edema, rhinitis, sinusitis, voice alteration Skin: Acne, alopecia, exfoliative dermatitis, fungal dermatitis, herpes simplex, herpes zoster, hirsutism, neoplasm skin benign, skin discoloration, skin ulcer, sweating

HOW SUPPLIED

16 /STORAGE AND HANDLING 16.1 Tacrolimus Capsules, USP Tacrolimus Capsules, USP, 0.5 mg: Light yellow color, oblong shape, size “5” hard gelatin capsules printed with “PBT” and “0.5” in red ink on cap and body respectively.

Capsules are supplied as follows: NDC 69452- 153 -20 Bottle of 100 Tacrolimus Capsules, USP, 1 mg: White color, oblong shape, size “5” hard gelatin capsules printed with “PBT” and “1.0” in red ink on cap and body respectively.

Capsules are supplied as follows: NDC 69452- 154 -20 Bottle of 100 Tacrolimus Capsules, USP, 5 mg: Pink color, oblong shape, size “4” hard gelatin capsules printed with “PBT” and “5.0” in red ink on cap and body respectively.

Capsules are supplied as follows: NDC 69452- 155 -20 Bottle of 100 Note: Tacrolimus capsule are not filled to maximum capsule capacity.

Capsule contains labeled amount.

Store and Dispense Store at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [See USP Controlled Room Temperature].

16.4 Handling and Disposal Tacrolimus can cause fetal harm.

Tacrolimus capsules should not be opened or crushed.

Avoid inhalation or direct contact with skin or mucous membranes of the powder contained in tacrolimus capsules.

If such contact occurs wash the skin thoroughly with soap and water; if ocular contact occurs, rinse eyes with water.

In case a spill occurs, wipe the surface with a wet paper towel.

Follow applicable special handling and disposal procedures 1 .

GERIATRIC USE

8.5 Geriatric Use Clinical trials of tacrolimus did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects.

Other reported clinical experience has not identified differences in responses between the elderly and younger patients.

In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.

DOSAGE FORMS AND STRENGTHS

3 Tacrolimus Capsules, USP are available in the following dosage form and strengths: Oblong shape, hard gelatin capsules for oral administration contains tacrolimus as follows: Tacrolimus Capsules, USP, 0.5 mg: Light yellow color, oblong shape, size “5” hard gelatin capsules printed with “PBT” and “0.5” in red ink on body and cap respectively.

Tacrolimus Capsules, USP, 1 mg: White color, oblong shape, size “5” hard gelatin capsules printed with “PBT” and “1.0” in red ink on body and cap respectively.

Tacrolimus Capsules, USP, 5 mg: Pink color, oblong shape, size “4” hard gelatin capsules printed with “PBT” and “5.0” in red ink on body and cap respectively.

Capsules: 0.5 mg, 1 mg and 5 mg ( 3 )

MECHANISM OF ACTION

12.1 Mechanism of Action Tacrolimus binds to an intracellular protein, FKBP-12.

A complex of tacrolimus-FKBP-12, calcium, calmodulin, and calcineurin (a ubiquitous mammalian intracellular enzyme) is then formed, after which the phosphatase activity of calcineurin inhibited.

Such inhibition prevents the dephosphorylation and translocation of various factors such as the nuclear factor of activated T-cells (NF-AT), and nuclear factor kappa-light-chain enhancer of activated B-cells (NF-κB).

Tacrolimus inhibits the expression and/or production of several cytokines that include interleukin (IL)-1 beta, IL-2, IL-3, IL-4, IL-5, IL-6, IL-8, IL-10, gamma interferon, tumor necrosis factor-alpha, and granulocyte macrophage colony stimulating factor.

Tacrolimus also inhibits IL-2 receptor expression and nitric oxide release, induces apoptosis and production of transforming growth factor beta that can lead to immunosuppressive activity.

The net result is the inhibition of T-lymphocyte activation and proliferation as well as T-helper-cell-dependent B-cell response (i.e., immunosuppression).

INDICATIONS AND USAGE

1 Tacrolimus Capsules are a calcineurin-inhibitor immuno-suppressant indicated for the prophylaxis of organ rejection in adult and pediatric patients receiving allogeneic liver, kidney or heart transplants, in combination with other immunosuppressants.

( 1.1 ) 1.1 Prophylaxis of Organ Rejection in Kidney, Liver, and Heart Transplant Tacrolimus Capsules is indicated for the prophylaxis of organ rejection, in patients receiving allogeneic kidney transplant [see Clinical Studies ( 14.1 )] , liver transplants [see Clinical Studies ( 14.2 )] and heart transplant [see Clinical Studies ( 14.3 )] , in combination with other immunosuppressants.

PEDIATRIC USE

8.4 Pediatric Use Safety and effectiveness have been established in pediatric liver, kidney, and heart transplant patients.

Liver transplant: Safety and efficacy using tacrolimus Granules in pediatric de novo liver transplant patients less than 16 years of age are based on evidence from active controlled studies that included 56 pediatric patients, 31 of which received tacrolimus and supported by two pharmacokinetic and safety studies in 151 children who received tacrolimus.

Additionally, 122 pediatric patients were studied in an uncontrolled trial of tacrolimus in living related donor liver transplantation.

Dose adjustments were made in the PK studies based on clinical status and whole blood concentrations.

Pediatric patients generally required higher doses of tacrolimus to maintain blood trough concentrations of tacrolimus similar to adult patients [see Dosage and Administration ( 2.3 ), Adverse Reactions ( 6.1 ), Clinical Pharmacology ( 12.3 ) and Clinical Studies ( 14.2 )].

Kidney and heart transplant: Use of Tacrolimus capsules and tacrolimus Granules in pediatric kidney and heart transplant patients is supported by adequate and well-controlled studies and pharmacokinetic data in adult kidney and heart transplant patients with additional pharmacokinetic data in pediatric kidney and heart transplant patients and safety data in pediatric liver transplant patients [see Dosage and Administration ( 2.3 ) and Clinical Pharmacology ( 12.3 )].

BOXED WARNING

– MALIGNANCIES AND SERIOUS INFECTIONS Increased risk for developing serious infections and malignancies with tacrolimus or other immunosuppressants that may lead to hospitalization or death.

( 5.1 , 5.2 ) WARNING: MALIGNANCIES AND SERIOUS INFECTIONS See full prescribing information for complete boxed warning Increased risk for developing serious infections and malignancies with tacrolimus capsules or other immunosuppressants that may lead to hospitalization or death.

(5.1 , 5.2 )

WARNING AND CAUTIONS

5 WARNINGS AND PRECAUTIONS Not Interchangeable with Extended Release Tacrolimus Products- Medication Errors: Instruct patients or caregivers to recognize the appearance of tacrolimus capsules ( 5.3 ) New Onset Diabetes After Transplant: Monitor blood glucose.

( 5.4 ) Nephrotoxicity: (acute and/or chronic); Reduce the dose; use caution with other nephrotoxic drugs.

( 5.5 ) Neurotoxicity: Including risk of Posterior Reversible Encephalopathy Syndrome (PRES); monitor for neurologic abnormalities; reduce or discontinue tacrolimus capsules and other immunosuppressants.

( 5.6 ) Hyperkalemia: Monitor serum potassium levels.

Consider carefully before using with other agents also associated with hyperkalemia.

( 5.7 ) Hypertension: May require antihypertensive therapy.

Monitor relevant drug-drug interactions.

( 5.8 ) Anaphylactic Reactions with IV formulation: Observe patients receiving tacrolimus injection for signs and symptoms of anaphylaxis.

( 5.9 ) Not recommended for use with Sirolimus: Not recommended in liver and heart transplant due to increased risk of serious adverse reactions.

( 5.10 ) Myocardial Hypertrophy: Consider dose reduction/ discontinuation.

( 5.13 ) Immunizations: Avoid live vaccines.

( 5.14 ) Pure Red Cell Aplasia: Consider discontinuation of tacrolimus capsules.

( 5.15 ) 5.1 Lymphoma and Other Malignancies Patients receiving immunosuppressants, including Tacrolimus are at increased risk of developing lymphomas and other malignancies, particularly of the skin [ see Boxed Warning ].

The risk appears to be related to the intensity and duration of immunosuppression rather than to the use of any specific agent.

As usual for patients with increased risk for skin cancer, examine patients for skin changese; xposure to sunlight and UV light should be limited by wearing protective clothing and using a broad spectrum sunscreen with a high protection factor.

Post-transplant lymphoproliferative disorder (PTLD) has been reported in immunosuppressed organ transplant recipients.

The majority of PTLD events appear related to Epstein Barr Virus (EBV) infection.

The risk of PTLD appears greatest in those individuals who are EBV seronegative, a population which includes many young children.

Monitor EBV serology during treatment.

5.2 Serious Infections Patients receiving immunosuppressants, including tacrolimus are at increased risk of developing bacterial, viral, fungal, and protozoal infections, including opportunistic infections.

These infections may lead to serious, including fatal, outcomes.

Serious viral infections reported include: Polyoma virus-associated nephropathy (PVAN), mostly due to BK virus infection JC virus-associated progressive multifocal leukoencephalopathy (PML) Cytomegalovirus infections: CMV seronegative transplant patients who receive an organ from a CMV seropositive donor disease are at higher risk of developing CMV viremia and CMV disease.

Monitor for the development of infection and adjust the immunosuppressive regimen to balance the risk of rejection with the risk of infection [see Adverse Reactions ( 6.1 , 6.2 )].

5.3 Not Interchangeable With Extended-Release Tacrolimus Products – Medication Errors Medication errors, including substitution and dispensing errors, between tacrolimus immediate-release products and tacrolimus extended-release products were reported outside the U.S.

This led to serious adverse reactions, including graft rejection, or other adverse reactions due to under-or over-exposure to tacrolimus.

Tacrolimus is not interchangeable or substitutable with tacrolimus extended-release products.

Changes between tacrolimus immediate-release and extended-release dosage forms must occur under physician supervision.

Instruct patients and caregivers to recognize the appearance of tacrolimus capsules dosage forms [see Dosage Forms and Strengths ( 3 )] and to confirm with the healthcare provider if a different product is dispensed.

5.4 New Onset Diabetes After Transplant Tacrolimus was shown to cause new onset diabetes mellitus in clinical trials of kidney, liver, and heart transplantation.

New onset diabetes after transplantation may be reversible in some patients.

African-American and Hispanic kidney transplant patients are at an increased risk.

Blood glucose concentrations should be monitored closely in patients using tacrolimus [see Adverse Reactions ( 6.1 )] .

5.5 Nephrotoxicity Tacrolimus like other calcineurin inhibitors, can cause acute or chronic nephrotoxicity.

Nephrotoxicity was reported in clinical trials [see Adverse Reactions ( 6.1 )].

Consider dosage reduction in patients with elevated serum creatinine and tacrolimus whole blood trough concentrations greater than the recommended range.

The risk for nephrotoxicity may increase when tacrolimus is concomitantly administered with CYP3A inhibitors (by increasing tacrolimus whole blood concentrations) or drugs associated with nephrotoxicity (e.g., aminoglycosides, ganciclovir, amphotericin B, cisplatin, nucleotide reverse transcriptase inhibitors, protease inhibitors) [see Drug Interactions ( 7.2 )] .

Monitor renal function and consider dosage reduction if nephrotoxicity occurs.

5.6 Neurotoxicity Tacrolimus may cause a spectrum of neurotoxicities.

The most severe neurotoxicities include posterior reversible encephalopathy syndrome (PRES), delirium, seizure and coma; others include tremors, paresthesias, headache, mental status changes, and changes in motor and sensory functions [see Adverse Reactions ( 6.1 , 6.2 )] .

As symptoms may be associated with tacrolimus whole blood trough concentrations at or above the recommended range, monitor for neurologic symptoms and consider dosage reduction or discontinuation of tacrolimus capsules if neurotoxicity occurs.

5.7 Hyperkalemia Hyperkalemia has been reported with tacrolimus use.

Serum potassium levels should be monitored.

Careful consideration should be given prior to use of other agents also associated with hyperkalemia (e.g., potassium-sparing diuretics, ACE inhibitors, angiotensin receptor blockers) during tacrolimus therapy [see Adverse Reactions ( 6.1 )] .

Monitor serum potassium levels periodically during treatment 5.8 Hypertension Hypertension is a common adverse effect of tacrolimus therapy and may require antihypertensive therapy [see Adverse Reactions ( 6.1 )].

The control of blood pressure can be accomplished with any of the common antihypertensive agents, though careful consideration should be given prior to use of antihypertensive agents associated with hyperkalemia (e.g., potassium-sparing diuretics, ACE inhibitors, angiotensin receptor blockers) [see Warnings and Precautions ( 5.7 )].

Calcium-channel blocking agents may increase tacrolimus blood concentrations and therefore require dosage reduction of tacrolimus [see Drug Interactions ( 7.2 )].

5.9 Anaphylactic Reactions with Tacrolimus Injection Anaphylactic reactions have occurred with injectables containing castor oil derivatives, including tacrolimus in a small percentage of patients (0.6%).

The exact cause of these reactions is not known.

Tacrolimus injection should be reserved for patients who are unable to take tacrolimus capsules orally.

Monitor patients for anaphylaxis when using the intravenous route of administration [ see Dosage and Administration ( 2.1 )].

5.10 Not Recommended for Use with Sirolimus Tacrolimus capsules are not recommended for use with sirolimus: The use of sirolimus with tacrolimus in studies of de novo liver transplant patients was associated with an excess mortality, graft loss, and hepatic artery thrombosis (HAT) and is not recommended.

The use of sirolimus (2 mg per day) with tacrolimus in heart transplant patients in a U.S.

trial was associated with increased risk of renal function impairment, wound healing complications, and insulin-dependent post-transplant diabetes mellitus, and is not recommended [see Clinical Studies ( 14.3 )].

5.11 Interactions with CYP3A4 Inhibitors and Inducers When co-administering tacrolimus with strong CYP3A4 inhibitors (e.g., telaprevir, boceprevir, ritonavir, ketoconazole, itraconazole, voriconazole, clarithromycin) and strong inducers (e.g., rifampin, rifabutin), adjustments in the dosing regimen of tacrolimus and subsequent frequent monitoring of tacrolimus whole blood trough concentrations and tacrolimus-associated adverse reactions are recommended [see Drug Interactions ( 7 )].

5.12 QT Prolongation Tacrolimus may prolong the QT/QTc interval and may cause Torsade de Pointes.

Avoid tacrolimus in patients with congenital long QT syndrome.

In patients with congestive heart failure, bradyarrhythmias, those taking certain antiarrhythmic medications or other medicinal products that lead to QT prolongation, and those with electrolyte disturbances such as hypokalemia, hypocalcemia, or hypomagnesemia, consider obtaining electrocardiograms and monitoring electrolytes (magnesium, potassium, calcium) periodically during treatment.

When co-administering tacrolimus with other substrates and/or inhibitors of CYP3A4 that also have the potential to prolong the QT interval, a reduction in tacrolimus dose, frequent monitoring of tacrolimus whole blood concentrations, and monitoring for QT prolongation is recommended.

Use of tacrolimus with amiodarone has been reported to result in increased tacrolimus whole blood concentrations with or without concurrent QT prolongation [see Drug Interactions ( 7 )].

5.13 Myocardial Hypertrophy Myocardial hypertrophy has been reported in infants, children, and adults, particularly those with high tacrolimus trough concentrations, and is generally manifested by echocardiographically demonstrated concentric increases in left ventricular posterior wall and interventricular septum thickness.

This condition appears reversible in most cases following dose reduction or discontinuance of therapy.

In patients who develop renal failure or clinical manifestations of ventricular dysfunction while receiving tacrolimus therapy, echocardiographic evaluation should be considered.

If myocardial hypertrophy is diagnosed, dosage reduction or discontinuation of tacrolimus capsules should be considered [see Adverse Reactions ( 6.2 )].

5.14 Immunizations Whenever possible, administer the complete complement of vaccines before transplantation and treatment with Tacrolimus.

The use of live vaccines should be avoided during treatment with tacrolimus; examples include (not limited to) the following: intranasal influenza, measles, mumps, rubella, oral polio, BCG, yellow fever, varicella, and TY21a typhoid vaccines.

Inactivated vaccines noted to be safe for administration after transplantation may not be sufficiently immunogenic during treatment with tacrolimus.

5.15 Pure Red Cell Aplasia Cases of pure red cell aplasia (PRCA) have been reported in patients treated with tacrolimus.

A mechanism for tacrolimus-induced PRCA has not been elucidated.

All patients reported risk factors for PRCA such as parvovirus B19 infection, underlying disease, or concomitant medications associated with PRCA.

If PRCA is diagnosed, discontinuation of tacrolimus capsules should be considered [see Adverse Reactions ( 6.2 )].

INFORMATION FOR PATIENTS

Patient Information Tacrolimus Capsules, USP (ta-KROE-li-mus) Read this Patient Information before you start taking tacrolimus capsules and each time you get a refill.

There may be new information.

This information does not take the place of talking with your healthcare provider about your medical condition or your treatment.

If you have any questions about tacrolimus capsules ask your healthcare provider or pharmacist.

What is the most important information I should know about tacrolimus capsules? Tacrolimus capsules can cause serious side effects, including: Increased risk of cancer.

People who take tacrolimus capsules have an increased risk of getting some kinds of cancer, including skin and lymph gland cancer (lymphoma).

Increased risk of infection .

Tacrolimus capsules is a medicine that affects your immune system.

Tacrolimus capsules can lower the ability of your immune system to fight infections.

Serious infections can happen in people receiving tacrolimus capsules that can cause death.

Call your healthcare provider right away if you have any symptoms of an infection, including: fever muscle aches sweats or chills warm, red, or painful areas on your skin cough or flu-like symptoms What is tacrolimus capsules? Tacrolimus capsules is a prescription medicine used with other medicines to help prevent organ rejection in people who have had a kidney, liver, or heart transplant.

Tacrolimus capsules are types of tacrolimus immediate-release drugs and they are not the same as tacrolimus extended-release tablets or tacrolimus extended-release capsules.

Your healthcare provider should decide what medicine is right for you.

Who should not take tacrolimus Capsules? Do not take tacrolimus Capsules if you are allergic to tacrolimus or any of the ingredients in tacrolimus capsules.

See the end of this leaflet for a complete list of ingredients in tacrolimus capsules.

What should I tell my healthcare provider before taking tacrolimus Capsules? Before you take tacrolimus capsules, tell your healthcare provider about all of your medical conditions, including if you: plan to receive any live vaccines.

People taking tacrolimus capsules should not receive live vaccines have or have had liver, kidney, or heart problems.

are pregnant or plan to become pregnant.

Tacrolimus capsules can harm your unborn baby.

If you are able to become pregnant, you should use effective birth control before and during treatment with tacrolimus capsules.

Talk to your healthcare provider before starting treatment with tacrolimus capsules about birth control methods that may be right for you.

Males who have female partners who are able to become pregnant should also use effective birth control before and during treatment with tacrolimus capsules.

Talk to your healthcare provider before starting treatment with tacrolimus capsules about birth control methods that may be right for you.

There is a pregnancy registry for females who become pregnant and males who have fathered a pregnancy during treatment with tacrolimus capsules, USP.

The purpose of this registry is to collect information about the health of you and your baby.

To enroll in this voluntary registry, call 1-877-955-6877 or go to https://www.transplantpregnancyregistry.org/ .

are breastfeeding or plan to breastfeed.

Tacrolimus Capsules passes into your breast milk.

You and your healthcare provider should decide if you will breastfeed while taking tacrolimus Capsules.

Tell your healthcare provider about all the medicines you take, and when you start a new medicine or stop taking a medicine, including prescription and over-the-counter medicines, vitamins, natural, herbal or nutritional supplements.

Especially tell your healthcare provider if you take: sirolimus (RAPAMUNE) cyclosporine (GENGRAF, NEORAL, and SANDIMMUNE) medicines called aminoglycosides that are used to treat bacterial infections ganciclovir (CYTOVENE IV, VALCYTE) amphotericin B (ABELCET, AMBISOME) cisplatin antiviral medicines called nucleoside reverse transcriptase inhibitors antiviral medicines called protease inhibitors water pill (diuretic) medicine to treat high blood pressure nelfinavir (VIRACEPT) telaprevir (INCIVEK) boceprevir ritonavir (KALETRA, NORVIR, TECHNIVIE, VIEKIRA PAK, VIEKIRA XR) letermovir (PREVYMIS) ketoconazole itraconazole (ONMEL, SPORANOX) voriconazole (VFEND) clarithromycin (BIAXIN, BIAXIN XL, PREVPAC) rifampin (RIFADIN, RIFAMATE, RIFATER, RIMACTANE) rifabutin (MYCOBUTIN) amiodarone (NEXTERONE, PACERONE) Ask your healthcare provider or pharmacist if you are not sure if you take any of the medicines listed above.

Tacrolimus capsules may affect the way other medicines work, and other medicines may affect how tacrolimus capsules works.

Know the medicines you take.

Keep a list of your medicines and show it to your healthcare provider and pharmacist when you get a new medicine.

How should I take tacrolimus capsules? Take tacrolimus capsules exactly as your healthcare provider tells you to take it.

Your healthcare provider will tell you how much tacrolimus capsules to take and when to take it.

Your healthcare provider may change your tacrolimus capsules dose if needed.

Do not stop taking or change your dose of tacrolimus capsules without talking to your healthcare provider.

Take tacrolimus capsules with or without food.

Take tacrolimus capsules the same way every day.

For example, if you choose to take tacrolimus capsules with food, you should always take tacrolimus capsules with food.

Take tacrolimus capsules at the same time each day, 12 hours apart.

For example, if you take your first dose at 7:00 a.m., you should take your second dose at 7:00 p.m.

Taking tacrolimus capsules at the same time each day helps to keep the amount of medicine in your body at a steady level.

Do not eat graperuit or drink grapefruit juice while taking tacrolimus capsules.

If you take too much tacrolimus capsules, call your healthcare provider or go to the nearest hospital emergency room right away.

Tacrolimus capsules: • Do not open or crush tacrolimus capsules.

What should I avoid while taking tacrolimus capsules? While you take tacrolimus capsules you should not receive any live vaccines.

Limit the amount of time you spend in sunlight and avoid exposure to ultraviolet (UV) light, such as tanning machines.

Wear protective clothing and use a sunscreen with a high sun protection factor (SPF).

What are the possible side effects of tacrolimus Capsules? Tacrolimus capsules may cause serious side effects, including: See “What is the most important information I should know about tacrolimus Capsules?” problems from medicine errors.

People who take tacrolimus capsules have sometimes been given the wrong type of tacrolimus product.

Tacrolimus extended-release medicines are not the same as tacrolimus capsules and cannot be substituted for each other, unless specifically prescribed by your healthcare provider, who will send you to get blood tacrolimus levels at a lab.

Check your tacrolimus capsules when you get a new prescription and before you take it to make sure you have received tacrolimus capsules.

Check with the pharmacist and call your healthcare provider if you think you were given the wrong medicine.

high blood sugar (diabetes).

Your healthcare provider may do blood tests to check for diabetes while you take tacrolimus capsules.

Call your healthcare provider right away if you have any symptoms of high blood sugar, including: frequent urination drowsiness increased thirst or hunger loss of appetite blurred vision fruity smell on your breath confusion nausea, vomiting, or stomach pain kidney problems.

Kidney problems are a serious and common side effect of tacrolimus capsules.

Your healthcare provider may do blood tests to check your kidney function while you take tacrolimus capsules.

nervous system problems.

Nervous system problems are a serious and common side effect of tacrolimus capsules.

Call your healthcare provider right away if you get any of these symptoms while taking tacrolimus capsules.

These could be signs of a serious nervous system problem: headache changes in behavior confusion coma seizures tremors changes in your vision numbness and tingling high levels of potassium in your blood.

Your healthcare provider may do blood tests to check your potassium level while you take tacrolimus capsules.

high blood pressure.

High blood pressure is a serious and common side effect of tacrolimus capsules.

Your healthcare provider will monitor your blood pressure while you take tacrolimus capsules and may prescribe blood pressure medicine for you, if needed.

Your healthcare provider may instruct you to check your blood pressure at home.

changes in the electrical activity of your heart (QT prolongation).

heart problems (myocardial hypertrophy).

Tell your healthcare provider right away if you get any of these symptoms of heart problems while taking tacrolimus capsules: shortness of breath feel lightheaded chest pain feel faint severe low red blood cell count (anemia).

The most common side effects of tacrolimus Capsules in people who have received a kidney, liver or heart transplant are: infections in general, including cytomegalovirus (CMV) infection swelling of the hands, legs, ankles, or feet weakness tremors(shaking of the body) pain constipation high levels of fat in your blood diarrhea high levels of potassium in your blood headache low red blood cell count (anemia) stomach pain low white blood cell count trouble sleeping fever nausea numbness or tingling in your hands and feet high blood sugar (diabetes) inflammation of your airway (bronchitis) low levels of magnesium in your blood fluid around your heart low levels of phosphate in your blood Tell your healthcare provider if you have any side effect that bothers you or that does not go away.

These are not all the possible side effects of tacrolimus capsules.

For more information, ask your healthcare provider or pharmacist.

Call your healthcare provider for medical advice about side effects.

You may report side effects to FDA at 1-800-FDA­1088.

How should I store tacrolimus capsules? tacrolimus capsules Store Tacrolimus Capsules, USP at room temperature between 68°F to 77°F (20°C to 25°C).

Keep tacrolimus capsules and all medicines out of the reach of children.

General information about the safe and effective use of tacrolimus capsules.

Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet.

Do not use tacrolimus capsules for a condition for which it was not prescribed.

Do not give tacrolimus capsules to other people, even if they have the same symptoms that you have.

It may harm them.

You can ask your pharmacist or healthcare provider for information about tacrolimus capsules that is written for health professionals.

This Patient Information leaflet summarizes the most important information about tacrolimus capsules.

If you would like more information, talk to your healthcare provider.

What are the ingredients in tacrolimus capsules? Active ingredient: Tacrolimus USP Inactive ingredients: Tacrolimus capsules: croscarmellose sodium, hypromellose, lactose anhydrous, and magnesium stearate.

The 0.5 mg capsule shell contains ferric oxide, gelatin, and titanium dioxide.

The 1 mg capsule shell contains gelatin and titanium dioxide.

The 5 mg capsule shell contains ferric oxide, gelatin, and titanium dioxide.

Manufactured by: Panacea Biotec Pharma Limited, Malpur, Baddi, Distt.

Solan (H.P.) – 173205, India All other trademarks and registered trademarks are the property of their respective owners.

Mfg.Lic.No: MB/05/203 Distributed by: Bionpharma Inc., 600 Alexander Road, Princeton, NJ 08540, USA.

Item Code: PPIT082B For more information, call Bionpharma, Inc.

at 1-888-235-BION or 1-888-235-2466.

This Patient Information has been approved by the U.S.

Food and Drug Administration.

Revised Date: October 2020

DOSAGE AND ADMINISTRATION

2 Patient Population Initial Oral Dosage (formulation) Whole Blood Trough Concentration range ADULT Kidney Transplant with azathioprine 0.2 mg/kg/day capsules divided in two doses, every 12 hours Month 1-3: 7-20 ng/mL Month 4-12: 5-15 ng/mL With MMF/IL-2 receptor antagonist 0.1 mg/kg/day capsules, divided in two doses, every 12 hours Month 1-12: 4-11 ng/mL Liver Transplant With corticosteroids only 0.1-0.15 mg/kg/day capsules, divided in two doses, every 12 hours Month 1-12: 5-20 ng/mL Heart Transplant With azathioprine or MMF 0.075 mg/kg/day capsules, divided in two doses, every 12 hours Month 1-3: 10-20 ng/mL Month ≥ 4: 5-15 ng/mL PEDIATRIC Kidney Transplant 0.3 mg/kg/day capsules, divided in two doses, every 12 hours Month 1-12: 5-20 ng/mL Liver Transplant 0.15-0.2 mg/kg/day capsules 0.2 mg/kg/day, divided in two doses, every 12 hours Month 1-12: 5-20 ng/mL Heart Transplant 0.3 mg/kg/day* capsules divided in two doses, every 12 hours Month 1-12: 5-20 ng/mL MMF= Mycophenolate mofetil *0.1 mg/kg/day if cell depleting induction treatment is administered Administer capsules consistently with or without food.

( 2.1 ) Therapeutic drug monitoring is recommended.

( 2.1 , 2.6 ) Avoid eating grapefruit or drinking grapefruit juice.

( 2.1 ) See dosing adjustments for African-American patients ( 2.2 ), hepatic and renal impaired.

( 2.4 , 2.5 ) For complete dosing information see the full prescribing information 2.1 Important Administration Instructions Tacrolimus Capsules should not be used without supervision by a physician with experience in immunosuppressive therapy.

Tacrolimus capsules and tacrolimus granules are not interchangeable or substitutable for other tacrolimus extended-release products.

This is because rate of absorption following the administration of an extended-release tacrolimus product is not equivalent to that of an immediate-release tacrolimus drug product.

Under-or overexposure to tacrolimus may result in graft rejection or other serious adverse reactions.

Changes between tacrolimus immediate-release and extended-release dosage forms must occur under physician supervision [see Warnings and Precautions ( 5.3 )].

Intravenous Formulation -Administration Precautions due to Risk of Anaphylaxis Intravenous use is recommended for patients who cannot tolerate oral formulations, and conversion from intravenous to oral tacrolimus capsules are recommended as soon as oral therapy can be tolerated to minimize the risk of anaphylactic reactions that occurred with injectables containing castor oil derivatives [see Warnings and Precautions ( 5.9 )].

Oral Formulations (Capsules) If patients are able to initiate oral therapy, the recommended starting doses should be initiated.

Tacrolimus capsules may be taken with or without food.

However, since the presence of food affects the bioavailability of tacrolimus capsules, if taken with food, it should be taken consistently the same way each time [see Clinical Pharmacology ( 12.3 )].

General Administration Instructions Patients should not eat grapefruit or drink grapefruit juice in combination with tacrolimus capsules [see Drug Interactions ( 7.2 )].

Tacrolimus capsules should not be used simultaneously with cyclosporine.

Tacrolimus capsules or cyclosporine should be discontinued at least 24 hours before initiating the other.

In the presence of elevated tacrolimus capsules or cyclosporine concentrations, dosing with the other drug usually should be further delayed.

Therapeutic drug monitoring (TDM) is recommended for all patients receiving tacrolimus capsules [see Dosage and Administration ( 2.6 )].

2.2 Dosing for Adult Kidney, Liver, or Heart Transplant Patients – Capsules Capsules If patients are able to tolerate oral therapy, the recommended oral starting doses should be initiated.

The initial dose of tacrolimus capsules should be administered no sooner than 6 hours after transplantation in the liver and heart transplant patients.

In kidney transplant patients, the initial dose of tacrolimus capsules may be administered within 24 hours of transplantation, but should be delayed until renal function has recovered.

The initial oral tacrolimus dosage recommendations for adult patients with kidney, liver, or heart transplants and whole blood trough concentration range are shown in Table 1 .

Perform therapeutic drug monitoring (TDM) to ensure that patients are within the ranges listed in Table 1 .

Table 1.

Summary of Initial Oral Tacrolimus capsules Dosing Recommendations and Whole Blood Trough Concentration Range in Adults Patient Population Tacrolimus Capsules* Initial Oral Dosage Whole Blood Trough Concentration Range kidney Transplant With azathioprine 0.2 mg/kg/day, divided in two doses, administered every 12 hours Month 1-3: 7-20 ng/mL Month 4-12: 5-15 ng/mL With MMF/IL-2 receptor antagonist† 0.1 mg/kg/day, divided in two doses, administered every 12 hours Month 1-12: 4-11 ng/mL Liver Transplant With corticosteroids only 0.10-0.15 mg/kg/day, divided in two doses, administered every 12 hours Month 1-12: 5-20 ng/mL Heart Transplant With azathioprine or MMF 0.075 mg/kg/day, divided in two doses, administered every 12 hours Month 1-3: 10-20 ng/mL Month ≥ 4: 5-15 ng/mL *African-American patients may require higher doses compared to Caucasians (see Table 2) † In a second smaller trial, the initial dose of tacrolimus was 0.15-0.2 mg/kg/day and observed tacrolimus concentrations were 6-16 ng/mL during month 1-3 and 5-12 ng/mL during month 4-12 [see Clinical Studies ( 14.1 )].

Dosing should be titrated based on clinical assessments of rejection and tolerability.

Lower tacrolimus capsules dosages than the recommended initial dosage may be sufficient as maintenance therapy.

Adjunct therapy with adrenal corticosteroids is recommended early post-transplant.

The data in kidney transplant patients indicate that the African-American patients required a higher dose to attain comparable trough concentrations compared to Caucasian patients ( Table 2 ) [see Use in Specific Populations ( 8.8 ) and Clinical Pharmacology ( 12.3 )].

Table 2.

Comparative Dose and Trough Concentrations Based on Race Time After Transplant Caucasian n=114 Black n=56 Dose (mg/kg) Trough Concentrations (ng/mL) Dose (mg/kg) Trough Concentrations (ng/mL) Day 7 0.18 12.0 0.23 10.9 Month 1 0.17 12.8 0.26 12.9 Month 6 0.14 11.8 0.24 11.5 Month 12 0.13 10.1 0.19 11.0 Intravenous Injection Tacrolimus injection should be used only as a continuous intravenous infusion and should be discontinued as soon as the patient can tolerate oral administration.

The first dose of tacrolimus capsules should be given 8-12 hours after discontinuing the intravenous infusion.

The recommended starting dose of tacrolimus injection is 0.03-0.05 mg/kg/day in kidney and liver transplant and 0.01 mg/kg/day in heart transplant given as a continuous intravenous infusion.

Adult patients should receive doses at the lower end of the dosing range.

Concomitant adrenal corticosteroid therapy is recommended early post-transplantation.

The whole blood trough concentration range described in Table 1 pertain to oral administration of tacrolimus capsules only; while monitoring tacrolimus concentrations in patients receiving tacrolimus injection as a continuous intravenous infusion may have some utility, the observed concentrations will not represent comparable exposures to those estimated by the trough concentrations observed in patients on oral therapy.

Anaphylactic reactions have occurred with injectables containing castor oil derivatives, such as Tacrolimus injection.

Therefore, monitoring for signs and symptoms of anaphylaxis is recommended [see Warnings and Precautions ( 5.9 )].

2.3 Dosing for Pediatric Kidney, Liver, and Heart Transplant Patients Oral formulation (capsules) Pediatric patients in general need higher tacrolimus doses compared to adults: the higher dose requirements may decrease as the child grows older.

Recommendations for the initial oral dosing for pediatric transplant patients and whole blood trough concentration range are shown in Table 3 .

Perform TDM to ensure that patients are within the ranges listed in Table 3 .

Table 3.

Summary of Initial Tacrolimus capsules Dosing Recommendations and Whole Blood Trough Concentration Range in Children Patient Population Initial Tacrolimus Capsules USP Whole Blood Trough Concentration Range Pediatric kidney transplant patients † 0.3 mg/kg/day capsules, divided in two doses, administered every 12 hours Month 1-12: 5-20 ng/mL Pediatric liver transplant patients ‡ 0.15- 0.2 mg/kg/day, divided in two doses, administered every 12 hours Month 1-12: 5-20 ng/ mL Pediatric heart transplant patients † 0.3 mg/kg/day* capsules, divided in two doses, administered every 12 hours Month 1-12: 5-20 ng/mL *0.1 mg/kg/day if cell depleting induction treatment is administered † See Clinical Pharmacology ( 12.3 ) , Tacrolimus Granules Pharmacokinetics in Pediatric Patients ‡ See Clinical Studies ( 14.2 ) , Liver Transplantation For conversion of pediatric patients from tacrolimus granules to tacrolimus capsules or from tacrolimus capsules to tacrolimus granules, the total daily dose should remain the same.

Following conversion from one formulation to another formulation of tacrolimus, therapeutic drug monitoring is recommended [see Dosage and Administration ( 2.6 )] .

If a patient is unable to receive an oral formulation, the patient may be started on tacrolimus injection.

For pediatric liver transplant patients, the intravenous dose is 0.03-0.05 mg/kg/day.

2.4 Dosage Adjustment in Patients with Renal Impairment Due to its potential for nephrotoxicity, consideration should be given to dosing tacrolimus capsules at the lower end of the therapeutic dosing range in patients who have received a liver or heart transplant and have pre-existing renal impairment.

Further reductions in dose below the targeted range may be required.

In kidney transplant patients with post-operative oliguria, the initial dose of tacrolimus capsules should be administered no sooner than 6 hours and within 24 hours of transplantation, but may be delayed until renal function shows evidence of recovery [see Dosage and Administration ( 2.2 ) , Warnings and Precautions ( 5.5 ) , Use in Specific Populations ( 8.6 ) , and Clinical Pharmacology ( 12.3 )] .

2.5 Dosage Adjustments in Patients with Hepatic Impairment Due to the reduced clearance and prolonged half-life, patients with severe hepatic impairment (Child Pugh ≥ 10) may require lower doses of tacrolimus.

Close monitoring of blood concentrations is warranted.

The use of tacrolimus capsules in liver transplant recipients experiencing post-transplant hepatic impairment may be associated with increased risk of developing renal insufficiency related to high whole blood concentrations of tacrolimus.

These patients should be monitored closely and dosage adjustments should be considered.

Some evidence suggests that lower doses should be used in these patients [see Dosage and Administration ( 2.2 ), Warnings and Precautions ( 5.5 ), Use in Specific Populations ( 8.7 ), and Clinical Pharmacology ( 12.3 )].

2.6 Therapeutic Drug Monitoring Monitoring of tacrolimus blood concentrations in conjunction with other laboratory and clinical parameters is considered an essential aid to patient management for the evaluation of rejection, toxicity, dose adjustments, and compliance.

Whole blood trough concentration range can be found in Table 1 .

Factors influencing frequency of monitoring include but are not limited to hepatic or renal dysfunction, the addition or discontinuation of potentially interacting drugs and the post-transplant time.

Blood concentration monitoring is not a replacement for renal and liver function monitoring and tissue biopsies.

Data from clinical trials show that tacrolimus whole blood concentrations were most variable during the first week post-transplantation.

The relative risks of toxicity and efficacy failure are related to tacrolimus whole blood trough concentrations.

Therefore, monitoring of whole blood trough concentrations is recommended to assist in the clinical evaluation of toxicity and efficacy failure.

Methods commonly used for the assay of tacrolimus include high-performance liquid chromatography with tandem mass spectrometric detection (HPLC/MS/MS) and immunoassays.

Immunoassays may react with metabolites as well as parent compound.

Therefore, assay results obtained with immunoassays may have a positive bias relative to results of HPLC/MS.

The bias may depend upon the specific assay and laboratory.

Comparison of the concentrations in published literature to patient concentrations using the current assays must be made with detailed knowledge of the assay methods and biological matrices employed.

Whole blood is the matrix of choice and specimens should be collected into tubes containing ethylene diamine tetraacetic acid (EDTA) anti-coagulant.

Heparin anti-coagulation is not recommended because of the tendency to form clots on storage.

Samples which are not analyzed immediately should be stored at room temperature or in a refrigerator and assayed within 7 days; see assay instructions for specifics.

If samples are to be kept longer they should be deep frozen at -20°C.

One study showed drug recovery > 90% for samples stored at -20°C for 6 months, with reduced recovery observed after 6 months.