Rizatriptan is a medication used to treat acute migraine attacks. It belongs to a class of drugs known as triptans, which work by narrowing blood vessels in the brain and reducing inflammation. Rizatriptan is typically taken as a tablet or orally disintegrating tablet at the onset of a migraine. This medication can help relieve symptoms such as headache, nausea, and sensitivity to light and sound. It is important to use rizatriptan only as prescribed and not for the prevention of migraines. Common side effects may include dizziness, fatigue, and dry mouth.