How to use Sumatriptan

This medication may also be used as a backup for sumatriptan injection. If your symptoms are only partly relieved or your headache comes back, you may take a dose of sumatriptan by mouth at least two hours after the injection, up to a maximum of 100 milligrams in a 24-hour period.
Sumatriptan is used to treat migraines. It helps to relieve headache, pain, and othermigraine symptoms . 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 migraineattacks.