Imitrex, or Sumatriptan, is used to treat severe migraine headaches. Many people find that their headaches go away completely, while others find that their headaches are much less painful, and that they are able to go back to normal activities. Imitrex often relieves other symptoms that occur with a migraine, such as: nausea, vomiting, sensitivity to light, and sensitivity to sound.
Be sure to tell your doctor of any allergies you have whether it is to medication or food, preservatives, or dyes. Tell your doctor immediately if you are, or become pregnant, or are breastfeeding, as it is unknown exactly how Imitrex may affect your baby. Also, tell your doctor of any other medications you are taking, including vitamins and supplements, and any medical conditions you may have.
Avoid alcohol when taking this medicine.
It is very important that you take this medicine exactly as your doctor tells you to. Do not take more or less medicine than directed.
Stop taking Imitrex and check with your doctor immediately if any of the following side effects occur: chest pain; changes in skin color on face; convulsions; fast or irregular breathing; puffiness or swelling of eyelids, area around the eyes, face, or lips; shortness of breath, troubled breathing, or wheezing.
Imitrex is a selective 5-hydroxytryptamine1 receptor subtype agonist. Sumatriptan succinate is chemically designated as 3-[2-(dimethylamino)ethyl]-N-methyl-indole¾5-methanesulfonamide succinate (1:1). The empirical formula is C14H21N3O2S·C4H6O4, representing a molecular weight of 413.5. Sumatriptan succinate is a white to off-white powder that is readily soluble in water and in saline. Each Imitrex tablet for oral administration contains 35 or 70 mg of sumatriptan succinate equivalent to 25 or 50 mg of sumatriptan, respectively. Each tablet also contains the inactive ingredients croscarmellose sodium, lactose, magnesium stearate, microcrystalline cellulose, and titanium dioxide dye.
Imitrex has the following structural formula: