How long does Imitrex (sumatriptan) take to work?
Imitex (sumatriptan) can start to work within 30 minutes of taking a dose. However, it may take a few hours for you to notice the full effects.
In clinical studies, more people had a response 4 hours after taking a dose of Imitrex compared to 2 hours.
If a single dose does not completely relieve migraine symptoms, you can take a second dose as long as you have had a response to the first dose and it has been at least 2 hours since taking it. Follow your doctor’s instructions carefully.
The maximum recommended daily dose of Imitrex tablets is 200 mg in a 24 hour period.
References
Sumatriptan. Revised 12/2023. Bionpharma Inc. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=e90b0eea-c424-4f00-98da-6ed6e80de1f6
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