Sumatriptan is used to treat migraines, which are severe headaches often accompanied by nausea and sensitivity to light and sound. It provides relief during acute migraine attacks but is not meant for preventing future migraines.
Sumatriptan works by narrowing blood vessels in the brain, which helps reduce headache pain. It also blocks pain signals, providing relief from nausea and sensitivity to light and sound during a migraine.
The usual starting dose for adults is 50 mg, taken as soon as migraine symptoms appear. Some may need 100 mg. A second dose can be taken after two hours if symptoms return, but not more than 200 mg in 24 hours. It is taken orally.
Common side effects include dizziness, drowsiness, and a warm sensation. These effects are usually mild and temporary, occurring in a small percentage of users.
Sumatriptan can cause serious cardiovascular side effects, like heart attack or stroke, especially in people with heart disease. It's not recommended for those with uncontrolled high blood pressure. It can also cause serotonin syndrome, a serious condition with symptoms like confusion and rapid heart rate.