Metoclopramide

1 INDICATIONS AND USAGE Metoclopramide tablets are indicated for the: Treatment for 4 to 12 weeks of symptomatic, documented gastroesophageal reflux in adults who fail to respond to conventional therapy. Relief of symptoms in adults with acute and recurrent diabetic gastroparesis. Limitations of Use : Metoclopramide tablets have not been shown to be safe and effective for the treatment of symptomatic, documented gastroesophageal reflux for longer than 12 weeks [see Warnings and Precautions ( 5.1 )]. Metoclopramide tablets are not recommended for use in pediatric patients due to the risk of developing tardive dyskinesia (TD) and other extrapyramidal symptoms as well as the risk of methemoglobinemia in neonates [see Use in Specific Populations ( 8.4 )] . Metoclopramide tablets are indicated for the: Treatment for 4 to 12 weeks of symptomatic, documented gastroesophageal reflux in adults who fail to respond to conventional therapy. ( 1 ) Relief of symptoms in adults with acute and recurrent diabetic gastroparesis. ( 1 ) Limitations of Use : Metoclopramide tablets have not been shown to be safe and effective for the treatment of gastroesophageal reflux for longer than 12 weeks. ( 1 , 5.1 ) Metoclopramide tablets are not recommended for use in pediatric patients due to the risk of tardive dyskinesia (TD) and other extrapyramidal symptoms as well as the risk of methemoglobinemia in neonates. ( 1 , 8.4 )

2 DOSAGE AND ADMINISTRATION Symptomatic, Documented Gastroesophageal Reflux in Adults Who Fail Conventional Therapy ( 2.1 ) Administer metoclopramide continuously or intermittently: Continuous: The recommended dosage is 10 to 15 mg orally, 30 minutes before each meal and at bedtime (maximum of 60 mg per day) for 4 to 12 weeks, as determined by endoscopic response. Intermittent: Single doses up to 20 mg prior to provoking situation. Acute and Recurrent Diabetic Gastroparesis in Adults ( 2.2 ) The recommended dosage is 10 mg orally, 30 minutes before each meal and at bedtime (maximum of 40 mg per day). Dosage Adjustment in Specific Populations ( 2.1 , 2.2 ) For symptomatic, documented gastroesophageal reflux and acute and recurrent diabetic gastroparesis, see Full Prescribing Information for recommended dosage reductions for elderly patients, in patients with moderate or severe hepatic or renal impairment, and cytochrome P450 2D6 (CYP2D6) poor metabolizers. 2.1 Recommended Dosage for Symptomatic, Documented Gastroesophageal Reflux in Adults Who Fail Conventional Therapy Metoclopramide tablets may be administered continuously or intermittently in patients with symptomatic, documented gastroesophageal reflux who fail to respond to conventional therapy: Continuous Dosing The recommended dosage of metoclopramide tablets is 10 to 15 mg orally four times daily. The maximum recommended daily oral dosage is 60 mg. Administer each dose thirty minutes before a meal and at bedtime. The recommended treatment duration is 4 to 12 weeks, as determined by endoscopic response. Use metoclopramide tablets for the shortest duration of treatment and periodically reassess the need for continued treatment. The maximum recommended duration of treatment is 12 weeks [see Warnings and Precautions (5.1)] . Table 1 displays the recommended daily dosage and maximum daily dosage for adults and dosage adjustments for patients with moderate or severe hepatic impairment (Child-Pugh B or C), in patients with creatinine clearance less than 60 mL/minute, in cytochrome P450 2D6 (CYP2D6) poor metabolizers, and with concomitant use with strong CYP2D6 inhibitors. Intermittent Dosing If symptoms only occur intermittently or at specific times of the day, administer metoclopramide as a single dose up to 20 mg prior to the provoking situation. Consider dosage reductions for the populations and situations in Table 1. Table 1. Recommended Dosage of Metoclopramide Tablet for Symptomatic, Documented Gastroesophageal Reflux in Adults Who Fail Conventional Therapy Recommended Dosage Maximum Recommended Daily Dosage Adult patients 10 to 15 mg four times daily (thirty minutes before each meal and at bedtime) 60 mg Mild hepatic impairment (Child-Pugh A) Elderly patients [see Use in Specific Populations ( 8.5 )] 5 mg 1 four times daily (thirty minutes before each meal and at bedtime) Moderate or severe hepatic impairment (Child-Pugh B or C) [see Use in Specific Populations ( 8.7 )] 5 mg four times daily (thirty minutes before each meal and at bedtime), or 10 mg taken three times daily 30 mg CYP2D6 poor metabolizers [see Use in Specific Populations ( 8.9 )] Concomitant use with strong CYP2D6 inhibitors (e.g., quinidine, bupropion, fluoxetine, and paroxetine) [see Drug Interactions ( 7.1 )] Moderate or severe renal impairment (creatinine clearance less than or equal to 60 mL/minute) [see Use in Specific Populations ( 8.6 )] Patients with End-Stage Renal Disease (ESRD) including those treated with hemodialysis and continuous ambulatory peritoneal dialysis [see Use in Specific Populations ( 8.6 )] 5 mg four times daily (thirty minutes before each meal and at bedtime) or 10 mg twice daily 20 mg 1 Elderly patients may be more sensitive to the therapeutic or adverse effects of metoclopramide; therefore, consider a lower starting dosage of 5 mg four times daily with titration to the recommended adult dosage of 10 to 15 mg four times daily based upon response and tolerability. 2.2 Recommende…

5 WARNINGS AND PRECAUTIONS Tardive Dyskinesia (TD), Other Extrapyramidal Symptoms (EPS), and Neuroleptic Malignant Syndrome (NMS) : Avoid concomitant use of other drugs known to cause TD/EPS/NMS and avoid use in patients with Parkinson’s Disease. If symptoms occur, discontinue metoclopramide and seek immediate medical attention. ( 5.1 , 5.2 , 5.3 , 7.1 , 7.2 ) Depression and suicidal ideation/suicide : Avoid use. ( 5.4 ) 5.1 Tardive Dyskinesia Metoclopramide, including metoclopramide tablets, can cause tardive dyskinesia (TD), a syndrome of potentially irreversible and disfiguring involuntary movements of the face or tongue, and sometimes of the trunk and/or extremities. Metoclopramide, including metoclopramide tablets, may also suppress, or partially suppress, the signs of TD, and may delay the diagnosis of TD because it may mask the underlying disease process. The effect of this symptomatic suppression upon the long-term course of TD is unknown. TD may remit, partially or completely, if metoclopramide treatment is discontinued. In patients treated with metoclopramide, including metoclopramide tablets, the risk of developing TD and the likelihood that TD will become irreversible increases with duration of treatment and total cumulative dosage. Additionally, the risk of developing TD is increased in elderly patients, especially in elderly women [ see Use in Specific Populations ( 8.5 )] , and in patients with diabetes mellitus. Prevention, Mitigation, and Monitoring for TD Metoclopramide is contraindicated in patients with a history of TD. Avoid use of metoclopramide in patients receiving concomitant antipsychotics due to the potential additive effects of TD [see Drug Interactions ( 7.1 )] . Reduce the metoclopramide dosage in the elderly [see Dosage and Administration ( 2.1 , 2.2 )] . Use metoclopramide for the shortest duration of treatment and periodically reassess the need for continued treatment. Immediately discontinue metoclopramide in patients who develop signs and symptoms of TD. In patients with symptomatic, documented gastroesophageal reflux, the maximum duration of treatment is 12 weeks [see Dosage and Administration ( 2.2 )] . In patients with diabetic gastroparesis, avoid a total duration of treatment with metoclopramide products, including metoclopramide tablets, for longer than 12 weeks. If longer-term use is unavoidable, routinely monitor for signs and symptoms of TD. If patients have continued TD symptoms, consider TD treatment. 5.2 Other Extrapyramidal Symptoms In addition to TD, metoclopramide may cause other extrapyramidal symptoms (EPS), parkinsonian symptoms, and motor restlessness. Advise patients to seek immediate medical attention if such symptoms occur and to discontinue metoclopramide. Extrapyramidal symptoms (EPS), such as acute dystonic reactions, occurred in patients treated with metoclopramide dosages of 30 mg to 40 mg daily. Such reactions occurred more frequently in adults less than 30 years of age and at higher than recommended dosages. EPS occurred more frequently in pediatric patients compared to adults (metoclopramide is not approved for use in pediatric patients). Symptoms can occur in the first 24 to 48 hours after starting metoclopramide. Symptoms included involuntary movements of limbs and facial grimacing, torticollis, oculogyric crisis, rhythmic protrusion of tongue, bulbar type of speech, trismus, or dystonic reactions resembling tetanus. Rarely, dystonic reactions were present as stridor and dyspnea, possibly due to laryngospasm. Diphenhydramine hydrochloride or benztropine mesylate may be used to treat these adverse reactions. Avoid metoclopramide in patients receiving other drugs that can cause EPS (e.g., antipsychotics). Parkinsonian symptoms (bradykinesia, tremor, cogwheel rigidity, mask-like facies) have occurred after starting metoclopramide, more commonly within the first 6 months, but also after longer periods. Symptoms generally have subsided within 2 to 3 months after dis…

4 CONTRAINDICATIONS Metoclopramide is contraindicated: In patients with a history of tardive dyskinesia (TD) or a dystonic reaction to metoclopramide [see Warnings and Precautions ( 5.1 , 5.2 )] . When stimulation of gastrointestinal motility might be dangerous (e.g., in the presence of gastrointestinal hemorrhage, mechanical obstruction, or perforation). In patients with pheochromocytoma or other catecholamine-releasing paragangliomas. Metoclopramide may cause a hypertensive/pheochromocytoma crisis, probably due to release of catecholamines from the tumor [see Warnings and Precautions ( 5.5 )] . In patients with epilepsy. Metoclopramide may increase the frequency and severity of seizures [see Adverse Reactions ( 6 )] . In patients with hypersensitivity to metoclopramide. Reactions have included laryngeal and glossal angioedema and bronchospasm [see Adverse Reactions ( 6 )] . History of TD or dystonic reaction to metoclopramide ( 4 ) When stimulation of gastrointestinal motility might be dangerous ( 4 ) Pheochromocytoma, catecholamine-releasing paragangliomas ( 4 ) Epilepsy ( 4 ) Hypersensitivity to metoclopramide ( 4 )

7 DRUG INTERACTIONS Antipsychotics : Potential for additive effects, including TD, EPS, and NMS; avoid concomitant use. ( 7.1 ) Central Nervous System (CNS) depressants : Increased risk of CNS depression. Avoid concomitant use and monitor for adverse reactions. ( 7.1 ) Strong CYP2D6 inhibitors (e.g., quinidine, bupropion, fluoxetine, and paroxetine) : See Full Prescribing Information for recommended dosage reductions. ( 2.1 , 2.3 , 7.1 ) Monoamine oxidase (MAO) inhibitors : Increased risk of hypertension; avoid concomitant use. ( 5.5 , 7.1 ) Additional drug interactions : See Full Prescribing Information. ( 7.1 , 7.2 ) 7.1 Effects of Other Drugs on Metoclopramide Table 3 displays the effects of other drugs on metoclopramide. Table 3. Effects of Other Drugs on Metoclopramide Antipsychotics Clinical Impact Potential for additive effects, including increased frequency and severity of tardive dyskinesia (TD), other extrapyramidal symptoms (EPS), and neuroleptic malignant syndrome (NMS). Intervention Avoid concomitant use [see Warnings and Precautions ( 5.1 , 5.2 , 5.3 )] . Strong CYP2D6 Inhibitors, not Included in Antipsychotic Category Above Clinical Impact Increased plasma concentrations of metoclopramide; risk of exacerbation of extrapyramidal symptoms [see Clinical Pharmacology ( 12.3 )] . Intervention Reduce the metoclopramide dosage [ see Dosage and Administration ( 2.1 , 2.2 ) ]. Examples quinidine, bupropion, fluoxetine, and paroxetine Monoamine Oxidase Inhibitors Clinical Impact Increased risk of hypertension [see Warnings and Precautions ( 5.5 )] . Intervention Avoid concomitant use. Central Nervous System (CNS) Depressants Clinical Impact Increased risk of CNS depression [see Warnings and Precautions ( 5.8 )] . Intervention Avoid metoclopramide or the interacting drug, depending on the importance of the drug to the patient. Examples alcohol, sedatives, hypnotics, opiates and anxiolytics Drugs that Impair Gastrointestinal Motility Clinical Impact Decreased systemic absorption of metoclopramide. Intervention Monitor for reduced therapeutic effect. Examples antiperistaltic antidiarrheal drugs, anticholinergic drugs, and opiates Dopaminergic Agonists and Other Drugs that Increase Dopamine Concentrations Clinical Impact Decreased therapeutic effect of metoclopramide due to opposing effects on dopamine. Intervention Monitor for reduced therapeutic effect. Examples apomorphine, bromocriptine, cabergoline, levodopa, pramipexole, ropinirole, and rotigotine 7.2 Effects of Metoclopramide on Other Drugs Table 4 displays the effects of metoclopramide on other drugs. Table 4. Effects of Metoclopramide on Other Drugs Dopaminergic Agonists and Drugs Increasing Dopamine Concentrations Clinical Impact Opposing effects of metoclopramide and the interacting drug on dopamine. Potential exacerbation of symptoms (e.g., parkinsonian symptoms). Intervention Avoid concomitant use [see Warnings and Precautions ( 5.2 )] . Examples Apomorphine, bromocriptine, cabergoline, levodopa, pramipexole, ropinirole, rotigotine Succinylcholine, Mivacurium Clinical Impact Metoclopramide inhibits plasma cholinesterase leading to enhanced neuromuscular blockade. Intervention Monitor for signs and symptoms of prolonged neuromuscular blockade Drugs with Absorption Altered due to Increased Gastrointestinal Motility Clinical Impact The effect of metoclopramide on other drugs is variable. Increased gastrointestinal (GI) motility by metoclopramide may impact absorption of other drugs leading to decreased or increased drug exposure. Intervention Drugs with Decreased Absorption (e.g., digoxin, atovaquone, posaconazole oral suspension Interaction does not apply to posaconazole delayed-release tablets , fosfomycin) : Monitor for reduced therapeutic effect of the interacting drug. For digoxin monitor therapeutic drug concentrations and increase the digoxin dose as needed (see prescribing information for digoxin). Drugs with Increased Absorption (e.g., sirolimus, tacrolimus…

8.1 Pregnancy Risk Summary Published studies, including retrospective cohort studies, national registry studies, and meta-analyses, do not report an increased risk of adverse pregnancy-related outcomes with use of metoclopramide during pregnancy. There are potential risks to the neonate following exposure in utero to metoclopramide during delivery ( see Clinical Considerations) . In animal reproduction studies, no adverse developmental effects were observed with oral administration of metoclopramide to pregnant rats and rabbits at exposures about 6 and 12 times the maximum recommended human dose (MRHD) ( see Data) . The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defects, loss or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in the clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Clinical Considerations Fetal/Neonatal Adverse Reactions Metoclopramide crosses the placental barrier and may cause extrapyramidal signs and methemoglobinemia in neonates with maternal administration during delivery. Monitor neonates for extrapyramidal signs [see Warnings and Precautions ( 5.1 , 5.2 ), Use in Specific Populations ( 8.4 )] . Data Animal Data Reproduction studies have been performed following administration of oral metoclopramide during organogenesis in pregnant rats at about 6 times the MRHD calculated on body surface area and in pregnant rabbits at about 12 times the MRHD calculated on body surface area. No evidence of adverse developmental effects due to metoclopramide were observed.

6 ADVERSE REACTIONS The following adverse reactions are described, or described in greater detail, in other sections of the labeling: Tardive dyskinesia [see Boxed Warning and Warnings and Precautions ( 5.1 )] Other extrapyramidal symptoms [see Warnings and Precautions ( 5.2 )] Neuroleptic malignant syndrome [see Warnings and Precautions ( 5.3 )] Depression [see Warnings and Precautions ( 5.4 )] Hypertension [see Warnings and Precautions ( 5.5 )] Fluid retention [see Warnings and Precautions ( 5.6 )] Hyperprolactinemia [see Warnings and Precautions ( 5.7 )] Effects on the ability to drive and operate machinery [see Warnings and Precautions ( 5.8 )] The following adverse reactions have been identified from clinical studies or postmarketing reports of metoclopramide. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. The most common adverse reactions (in approximately 10% of patients receiving 10 mg of metoclopramide four times daily) were restlessness, drowsiness, fatigue, and lassitude. In general, the incidence of adverse reactions correlated with the dosage and duration of metoclopramide administration. Adverse reactions, especially those involving the nervous system, occurred after stopping metoclopramide including dizziness, nervousness, and headaches. Central Nervous System Disorders Tardive dyskinesia, acute dystonic reactions, drug-induced parkinsonism, akathisia, and other extrapyramidal symptoms Convulsive seizures Hallucinations Restlessness, drowsiness, fatigue, and lassitude occurred in approximately 10% of patients who received 10 mg four times daily. Insomnia, headache, confusion, dizziness, or depression with suicidal ideation occurred less frequently. Neuroleptic malignant syndrome, serotonin syndrome (in combination with serotonergic agents). Endocrine Disorders : Fluid retention secondary to transient elevation of aldosterone. Galactorrhea, amenorrhea, gynecomastia, impotence secondary to hyperprolactinemia Cardiovascular Disorders : Acute congestive heart failure, possible atrioventricular block, hypotension, hypertension, supraventricular tachycardia, bradycardia, fluid retention Gastrointestinal Disorders : Nausea, bowel disturbances (primarily diarrhea) Hepatic Disorders : Hepatotoxicity, characterized by, e.g., jaundice and altered liver function tests, when metoclopramide was administered with other drugs with known hepatotoxic potential Renal and Urinary Disorders : Urinary frequency, urinary incontinence Hematologic Disorders : Agranulocytosis, neutropenia, leukopenia, methemoglobinemia, sulfhemoglobinemia Hypersensitivity Reactions : Bronchospasm (especially in patients with a history of asthma), urticaria; rash; angioedema, including glossal or laryngeal edema Eye Disorders : Visual disturbances Metabolism Disorders : Porphyria Most common adverse reactions (> 10%) are restlessness, drowsiness, fatigue, and lassitude. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Teva at 1-888-838-2872 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.