Are you looking for information on Cetirizine HCL tablets? Click here to learn more about its uses and side effects. Imitrex Injection is indicated in adults for (1) the acute treatment of migraine, with or without aura, and (2) the acute treatment of cluster headache. Imitrex is the brand name for sumatriptan, a prescription medicine used to treat migraine headaches in adults. Imitrex is best taken as soon as the headache pain begins - not before, even if there. Imitrex (sumatriptan) is a headache medicine that narrows blood vessels around the brain. Sumatriptan also reduces substances in the body that can trigger headache pain, nausea, sensitivity to light and sound, and other migraine symptoms. Initially, 6 mg subcutaneously. If headache symptoms return, a second 6 mg dose may be given with a minimum 1-hour interval between doses. Consider giving a second dose only if some response to the first dose was observed. Find patient medical information for Imitrex Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Imitrex Injection (sumatriptan succinate) is a selective serotonin receptor agonist used to treat migraine headaches. Imitrex is available as a generic drug. Narcotic migraine medicines, also referred to as opioid analgesics, are naturally occurring or synthetically made derivatives of compounds in opium poppies. Imitrex (sumatriptan) is a selective serotonin receptor agonist used in oral, intranasal or injectable dosage form to treat migraine headaches. Imitrex is available as a generic drug. Unfortunately our full catalog may not be displayed in your state. If you contact our Customer Support by one of the methods below, we will be able to assist you in locating the product you are looking for.