Zomig Nasal nasal spray treats migraines and cluster headaches by narrowing blood vessels in the head and easing other symptoms.
The usual dose is one spray (2.5 mg, 5 mg, or 10 mg) into one nostril.
Use the nasal spray as soon as a headache starts. You may take a second dose if the headache returns within two hours or later in the day.
Do not use more than 10 mg or 2 doses (depending on dose strength) within a 24-hour period. Ask your doctor if you are unsure.