Answer
Sep 01, 2026 - 11:36 AM
Imitrex (sumatriptan) typically starts to relieve migraine symptoms within 30 minutes to 2 hours after taking a dose. Most people experience significant improvement within this time frame, though the exact speed can vary depending on the individual and the form of Imitrex used (tablet, nasal spray, or injection). If symptoms persist after two hours, a second dose may be taken as directed by a doctor.
