A migraine is a powerful headache that often happens with nausea, vomiting, and sensitivity to light.

Imitrex (sumatriptan) is a headache medicine that is used to treat migraines. Around the brain, it narrows blood vessels. This medicine helps to get relief from different migraine symptoms such as vomiting, pain, and headache, sensitivity near the sound or light. Prompt treatment may help you return to your regular routine.