Although the cause of migraine attacks is not fully understood, it is thought that widening of blood vessels in the brain causes the throbbing pain of migraine headaches. Sumatriptan relieves this pain by causing the blood vessels in the brain to narrow. Sumatriptan works by stimulating receptors called serotonin (or 5HT) receptors that are found in the brain. A natural substance called serotonin normally acts on these receptors, causing blood vessels in the brain to narrow. Sumatriptan mimics this action of serotonin by directly stimulating the serotonin receptors in the brain. This narrows the blood vessels and so relieves the pain of migraine headaches.
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Side Effects: Side effects are generally transient. Some common side effects include pain or tightness in the chest or throat, tingling, flushing, weakness, dizziness, abdominal discomfort, sweating, nasal irritation, and injection site reactions. Rarely, allergic reactions have been reported, usually in individuals who are highly allergic to multiple allergens. Sumatriptan may elevate blood pressure in individuals with or without a history of high blood pressure. Individuals with uncontrolled high blood pressure should not use sumatriptan. Sumatriptan rarely has been associated with coronary artery spasm, heart attacks, stroke, abnormal heart beats, and seizures.
Indication: Sumatriptan is used to treat migraines. It helps to relieve headache, pain, and other migraine symptoms (including nausea, vomiting, sensitivity to light/sound). Prompt treatment helps you return to your normal routine and may decrease your need for other pain medications. Sumatriptan belongs to a class of drugs known as triptans. It affects a certain natural substance (serotonin) that causes narrowing of blood vessels in the brain. It may also relieve pain by affecting certain nerves in the brain.Sumatriptan does not prevent future migraines or lessen how often you get migraine attacks.
