Imitrex SumatriptanImitrex (Sumatriptan). This is a medicine for headache that carries out the narrowing of blood vessels around the brain. This medicine also reduces the body substances that can prompt headache pain, sensitivity to sound and light, nausea, and other symptoms of migraine.

Imitrex is used for treating  migraine headaches. Imitrex will not prevent headaches or reduce the number of headache attacks, it treats only a headache that has already started. Imitrex should not be used for common tension headache treatment, any headache that seems to be different from the usual migraine headaches, or a headache that results to immobility of one side of the body.

Things to note

Imitrex should never be used if you are sumatriptan allergic, if you posses any heart disease history, or if you posses coronary heart disease, blood circulation problems, angina, lack of blood supply to the heart, a severe disease of the liver, uncontrolled high blood pressure, ischemic bowel disease, history of stroke or heart attack, or if the headache appears to be different from the usual migraine headaches.


migraine imitrexImitrex should be administered exactly as prescribed by your doctor. Ensure it is not taken longer than recommended, or in larger or smaller amounts. Directions on your prescription label should be strictly adhered to. Overusing migraine headache medicines can lead to a worse case of headache. Use Imitrex only when you notice symptoms of headache or after an attack has already started.

The first dose of this medicine might be administered to you by your doctor in a clinic or hospital to see if you will experience any severe side effects.

If your headache doesn't suppress completely after using a tablet, or it suppresses and comes back, take a second tablet after two (2) hours of taking the first one. Ensure you do not take over 200 mg of Sumatriptan oral tablets within 24 hours. If symptoms persist, contact your doctor before administering any more tablets.

Side effects

If you experience any of these allergic reaction symptoms to Imitrex, seek emergency medical aid: breathing difficulty, hives, swelling of the lips, tongue, throat, or face.

Stop using Imitrex and immediately call your doctor if any of the serious side effects occur such as:

  • seizure;
  • abrupt and severe stomach pain and bloody diarrhea;
  • sudden numbness or weakness;
  • severe unexpected headache, problem with vision, balance, or speech;
  • numbness or tingling and a blue or pale-colored appearance in the toes and fingers;
  • or pain in the chest or heavy feeling, sweating, nausea, spreading pain to the arm or shoulder, general ill feeling.