Sumatriptan, sold under the brand name Imitrex among others, is a medication used to treat migraine headaches and cluster headaches. It is taken by mouth, in the nose, or by injection under the skin. Effects generally occur within three hours.
Common side effects include chest pressure, fatigue, vomiting, tingling, and the feeling that the world is spinning. Serious side effects may include serotonin syndrome, heart a...
* May have multiple approval dates, manufacturers, or labelers.