Almotriptan Tablets Almotriptan is used in the treatment of Acute migraine headache. It relieves the symptoms of migraine and prevents the attack from becoming worse. How Almotriptan works Migraine headaches are thought to result from the dilatation of blood vessels in the brain and release of vasoactive and pro-inflammatory peptides (chemical messenger) from sensory nerve endings. Almotriptan is a selective serotonin receptor agonist. It works by constricting (narrowing) these blood vessels and prevents the release of the chemical messenger in the nerve endings, thereby relieving the migraine headaches.
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