Sumatriptan
Imitrex (sumatriptan) is a prescription medication classified as a triptan, used to treat acute migraine headaches with or without aura in adults. It helps relieve migraine symptoms such as pain, nausea, and sensitivity to light and sound.
Imitrex is a migraine medication that works by narrowing blood vessels in the brain to relieve headache pain and associated symptoms.
Key facts at a glance
- RxNorm
- 217713
- Generic
- Imitrex
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Imitrex is FDA-approved for the acute treatment of migraine with or without aura in adults. It is not used for migraine prevention or to treat other types of headaches.
Imitrex belongs to a class of drugs called triptans (5-HT receptor agonists). It works by binding to serotonin receptors, causing vasoconstriction of cranial blood vessels and reducing inflammation, which helps relieve migraine symptoms.
Imitrex is available by prescription only and should be taken at the onset of migraine symptoms for best results. It is contraindicated in patients with cardiovascular disease, uncontrolled hypertension, or history of stroke. Common side effects include injection site reactions, tingling, warmth, or flushing. Patients should not use Imitrex within 24 hours of taking another triptan or ergotamine medication.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy