Migraine headaches are thought to result from the dilatation of blood vessels in the head. Rizatriptan works by constricting (narrowing) these blood vessels, thereby relieving the migraine headaches.
Flushing (sense of warmth in the face, ears, neck and trunk), Diarrhea, Insomnia (difficulty in sleeping), Vomiting.
Rizatriptan Benzoate is used in Acute migraine headache. It relieves the symptoms of migraine and prevents the attack from becoming worse.