Rizatriptan Benzoate (5 brand names, 3 dosage forms, 1 route)
Available dosage forms: TABLET, TABLET, ORALLY DISINTEGRATING, FILM.
Routes of administration: ORAL.
Brand Names
- MAXALT
- MAXALT-MLT
- RIZAFILM
- RIZATRIPTAN BENZOATE
- SYMBRAVO
Indications and Usage
RizaFilm™ is indicated for the acute treatment of migraine with or without aura in adults and in pediatric patients 6 to 17 years of age. Limitations of Use RizaFilm should only be used where a clear diagnosis of migraine has been established. If a patient has no response for the first migraine attack treated with RizaFilm, the diagnosis of migraine should be reconsidered before RizaFilm is administered to treat any subsequent attacks. RizaFilm is not indicated for the preventive treatment of migraine. Safety and effectiveness of RizaFilm have not been established for cluster headache.
Contraindications
RizaFilm is contraindicated in patients with: Ischemic coronary artery disease (angina pectoris, history of myocardial infarction, or documented silent ischemia), or other significant underlying cardiovascular disease [ see Warnings and Precautions (5.1) ]. Coronary artery vasospasm including Prinzmetal’s angina[ see Warnings and Precautions (5.1) ]. Wolff-Parkinson-White Syndrome or arrhythmias associated with other cardiac accessory conduction pathway disorders [see Warnings and Precautions (5.2) ] History of stroke or transient ischemic attack (TIA) [ see Warnings and Precautions (5.4) ]. Peripheral vascular disease (PVD) [ see Warnings and Precautions (5.5) ]. Ischemic bowel disease [ see Warnings and Precautions (5.5) ]. Uncontrolled hypertension [ see Warnings and Precautions (5.9) ]. Recent use (i.e., within 24 hours) of another 5-HT 1 agonist, ergotamine-containing medication, or ergot-type medication (such as dihydroergotamine or methysergide) [ see Drug Interactions (7.2 and 7.3) ]. Hemiplegic or basilar migraine. Concurrent administration or recent discontinuation (i.e., within 2 weeks) of a MAO-A inhibitor [see Drug Interactions (7.5) and Clinical Pharmacology (12.3)] Concurrent administration of propranolol [see Drug Interactions (7.1) and Clinical Pharmacology (12.3) ] Hypersensitivity to rizatriptan or any ingredients in RizaFilm (angioedema and anaphylaxis seen) [see Warnings and Precautions (5.6) ]
Adverse Reactions
The following serious adverse reactions are discussed in more detail in other sections of the labeling: Myocardial Ischemia, Myocardial Infarction, and Prinzmetal’s Angina [see Warnings and Precautions (5.1)]. Arrhythmias [see Warnings and Precautions (5.2)]. Chest and or Throat, Neck and/or Jaw Pain/Tightness/Pressure [see Warnings and Precautions (5.3)]. Cerebrovascular Events [see Warnings and Precautions (5.4)]. Other Vasospasm Reactions [see Warnings and Precautions (5.5)]. Hypersensitivity Reactions [see Warnings and Precautions (5.6)] Medication Overuse Headache [see Warnings and Precautions (5.7)]. Serotonin Syndrome [see Warnings and Precautions (5.8)]. Increase in Blood Pressure [see Warnings and Precautions (5.9)].
Drug Interactions
Drug Interactions Monoamine Oxidase Inhibitors: In a drug interaction study, when rizatriptan benzoate 10 mg tablets were administered to subjects (n=12) receiving concomitant therapy with the selective, reversible MAO-A inhibitor, moclobemide 150 mg three times a day, there were mean increases in rizatriptan AUC and C max of 119% and 41%, respectively; and the AUC of the active N-monodesmethyl metabolite of rizatriptan was increased more than 400%. The interaction would be expected to be greater with irreversible MAO inhibitors [see Contraindications (4) and Drug Interactions (7.5)]. No pharmacokinetic interaction is anticipated in patients receiving selective MAO-B inhibitors. Propranolol: In a study of concurrent administration of propranolol 240 mg/day and a single dose of rizatriptan 10 mg in healthy adult subjects (n=11), mean plasma AUC for rizatriptan was increased by 70%, and a four-fold increase was observed in one subject [see Contraindications (4) and Drug Interactions (7.1) ]. The AUC of the active N-monodesmethyl metabolite of rizatriptan was not affected by propranolol. Nadolol/Metoprolol: In a drug interactions study, effects of multiple doses of nadolol 80 mg or metoprolol 100 mg every 12 hours on the pharmacokinetics of a single dose of 10 mg rizatriptan were evaluated in healthy subjects (n=12). No pharmacokinetic interactions were observed. Paroxetine: In a study of the interaction between the selective serotonin reuptake inhibitor (SSRI) paroxetine 20 mg/day for two weeks and a single dose of rizatriptan benzoate tablet 10 mg in healthy subjects (n=12), neither the plasma concentrations of rizatriptan nor its safety profile were affected by paroxetine [see Warnings and Precautions (5.7) , Drug Interactions (7.4) , and Patient Counseling Information (17) ]. Oral Contraceptives: In a study of concurrent administration of an oral contraceptive during 6 days of administration of rizatriptan (10-30 mg/day) in healthy female volunteers (n=18), rizatri
Overdosage
No overdoses of rizatriptan benzoate were reported during clinical trials in adults. Some adult patients who received 40 mg of rizatriptan benzoate either in a single dose or as two doses with a 2-hour interdose interval had dizziness and somnolence. In a clinical pharmacology study in which 12 adult subjects received rizatriptan benzoate, at total cumulative doses of 80 mg (given within four hours), two of the subjects experienced syncope, dizziness, bradycardia including third degree AV block, vomiting, and/or incontinence. In the long-term, open label study, involving 606 treated pediatric migraineurs 12 to 17 years of age (of which 432 were treated for at least 12 months), 151 patients (25%) took two 10-mg doses of Rizatriptan Benzoate Orally Disintegrating Tablets within a 24-hour period. Adverse reactions for 3 of these patients included abdominal discomfort, fatigue, and dyspnea. In addition, based on the pharmacology of rizatriptan benzoate, hypertension or myocardial ischemia could occur after overdosage. Gastrointestinal decontamination, (i.e., gastric lavage followed by activated charcoal) should be considered in patients suspected of an overdose with RizaFilm. Clinical and electrocardiographic monitoring should be continued for at least 12 hours, even if clinical symptoms are not observed. The effects of hemo- or peritoneal dialysis on serum concentrations of rizatriptan are unknown.