Triptans are a class of medications used to treat migraines that are categorized as acute. Acute medications are designed to stop a migraine attack or cluster headache after the attack begins. By stopping the migraine, acute medications help alleviate the symptoms of migraines such as pain, nausea, and sensitivity to light and sound. Unlike other acute medications, triptans are considered selective serotonin receptor agonists, meaning that triptans work by stimulating serotonin, a neurotransmitter found in the brain, to reduce inflammation and constrict blood vessels, thereby stopping the headache or migraine.