Naratriptan hydrochloride is used to treat migraine headaches.
Take this medicine by mouth. Take this medicine when you begin to feel the earliest symptoms of a migraine headache. Take this medicine with a full glass of water. You may take another naratriptan hydrochloride tablet 4 hours after the first tablet if the headache did not go away completely or the headache starts again. If this medicine does not help your headaches to feel better, then call your doctor and do NOT take any more of this medicine.