Imitrex is a prescription medication used to treat migraines and cluster headaches, and it works by narrowing the blood vessels in the brain and reducing inflammation. It helps to relieve pain and other symptoms of migraines/headaches including sensitivity to light or sound, nausea, and vomiting. It does not prevent future migraines/headaches or reduce how often you may get a headache.
Imitrex contains the active ingredient sumatriptan, which belongs to a class of drugs known as triptans. As a triptan medication, Imitrex stimulates serotonin receptors (5-HT1B/1D receptors) found on blood vessels in the brain. It causes the blood vessels to narrow, reducing inflammation and stopping pain signals from being sent to the brain.
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