What side effects may I notice from receiving Imitrex?

Side effects that you should report to your doctor or health care professional as soon as possible:

-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
-changes in vision
-chest pain or chest tightness
-signs and symptoms of a dangerous change in heartbeat or heart rhythm like chest pain; dizziness; fast, irregular heartbeat; palpitations; feeling faint or lightheaded; falls; breathing problems
-signs and symptoms of a stroke like changes in vision; confusion; trouble speaking or understanding; severe headaches; sudden numbness or weakness of the face, arm or leg; trouble walking; dizziness; loss of balance or coordination
-signs and symptoms of serotonin syndrome like irritable; confusion; diarrhea; fast or irregular heartbeat; muscle twitching; stiff muscles; trouble walking; sweating; high fever; seizures; chills; vomiting

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

-diarrhea
-dizziness
-drowsiness
-dry mouth
-headache
-nausea, vomiting
-pain, tingling, numbness in the hands or feet
-stomach pain

This list may not describe all possible side effects for Imitrex. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.