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Important Note

The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. Consult your healthcare professional before using this drug.





This medication is used to treat acute migraine attacks. This drug does not prevent future migraine attacks.

How To Use

This drug is taken by mouth as directed for migraine attacks. Dosage is based on your medical condition and response. If no relief occurs after the first dose, consult your MD or pharmacist. Doses are generally separated by at least 2 hours. In the U.S.: do not exceed 30 mg in a 24 hour period. In Canada: according to the drug manufacturer, do not exceed 20 mg in a 24 hour period.

Side Effects

Drowsiness, dizziness, dry mouth, nausea, or headache may occur. If these effects persist or worsen, notify your doctor promptly. Unlikely but report promptly: mental/mood changes, chest pain, neck/jaw discomfort. Very unlikely but report promptly: irregular or fast heartbeat, unusual weakness, vision changes, cold/tingling/numb hands or feet, stomach pain, bloody diarrhea, fainting or unsteadiness. An allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of an allergic reaction include: rash, itching, swelling, severe dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.


Tell your doctor your medical history, including: any allergies, heart or blood vessel disease/stroke, kidney disease, liver disease, intestinal disease, high blood pressure, high cholesterol, diabetes, family history of heart problems, smoking history. Limit alcohol intake, as it may aggravate drug side effects. Caution is advised when performing tasks requiring alertness (e.g., driving), as this drug may cause drowsiness or dizziness. This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor. It is not known whether this drug is excreted into breast milk. Consult your doctor before breast-feeding.

Drug Interactions

Tell your doctor of all nonprescription and prescription medication you may use, especially: propranolol, other "serotonin-type" drugs such as SSRI antidepressants (e.g., fluoxetine, sertraline, paroxetine, fluvoxamine), nefazodone, venlafaxine, other "triptan" drugs (e.g., sumatriptan), MAO inhibitors (e.g., selegiline, furazolidone, moclobemide, tranylcypromine, phenelzine, linezolid, procarbazine), sibutramine, tramadol, "ergot-type" drugs (e.g., ergotamine, dihydroergotamine, methysergide). Tell your doctor if you take drugs that cause drowsiness such as sedatives, tranquilizers, narcotic pain relievers (e.g., codeine), psychiatric medicines (e.g., phenothiazines or tricyclics), muscle relaxants, anti-anxiety drugs (e.g., diazepam), anti-seizure drugs (e.g., carbamazepine), antihistamines that cause drowsiness (e.g., diphenhydramine). Check the labels on all your medicines (e.g., cough-and-cold products) because they may contain drowsiness-causing ingredients. Ask your pharmacist about the safe use of these products. Do not use this drug within 24 hours of any "ergot-type" or "serotonin-type" drugs. Do not use this drug together with an MAO inhibitor or within two weeks of stopping an MAO inhibitor. Do not start or stop any medicine without doctor or pharmacist approval.


If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include unusual dizziness or drowsiness; slow, fast or irregular heartbeat; and vomiting.


Do not share this medication with others. Medical tests will be done to monitor for drug side effects.

Missed Dose

Not applicable.


Store at room temperature between 59 and 86 degrees F (15-30 degrees C) away from light and moisture.