Imigran is an over-the-counter medication designed to treat migraine - a neurological condition that usually involves severe recurring headaches. The illness may be accompanied by other symptoms, such as light and noise sensitivity, nausea and vomiting. This type of migraine is known as migraine with aura. These symptoms can also be experienced without a headache which is known as a silent migraine.
Imigran contains the active ingredient sumatriptan, which belongs to a class of medications known as selective serotonin receptor agonists, and treats the condition at its root.