Naratriptan hydrochloride is a medication commonly used for the treatment of migraine headaches. It belongs to the class of drugs known as selective serotonin receptor agonists, or triptans. Naratriptan hydrochloride works by constricting the blood vessels in the brain and reducing the release of certain chemicals that can trigger migraines. It helps to alleviate migraine symptoms such as headache, nausea, and sensitivity to light and sound. Naratriptan hydrochloride is available in tablet form and should be taken as soon as possible after the onset of a migraine attack. It is important to follow the dosage instructions provided by a healthcare professional and discuss any potential side effects or interactions with other medications.