The maximum daily dose is 40 mg in a 24-hour period. The safety of treating an average of more than 4 headaches in a 30‑day period has not been established. 3. Dosage Forms and Strengths Unit dose nasal spray devices containing 5 mg or 20 mg sumatriptan. 4. Contraindications IMI...
if side effects are dose limiting, the lower dose of 4 mg may be used [seeClinical Studies]. For the treatment of cluster headache, the efficacy of lower doses has not been established.
If the headache returns or the patient has a partial response to the initial dose, the dose may be repeated after 2 hours, not to exceed a total daily dose of 200 mg. STORAGE Store Imitrex at room temperature away from moisture, heat, and light. ...
Other members of this class include naratriptan (Amerge), zolmitriptan (Zomig), rizatriptan (Maxalt), frovatriptan (Frova), eletriptan (Relpax), and almotriptan (Axert). Migraine headaches are believed to result from dilatation of blood vessels in the brain. Sumatriptan relieves migraines by...