The action of sumatriptan (which means sumatriptan succinate) may be to relieve migraine headaches by constricting blood vessels. Sumatriptan succinate is a selective agonist at the 5-hydroxytryptamine 1D receptor, which constricts blood vessels and is indicated for the treatment of acute attacks of migraine with or without aura in adults. Contraindications to use include hypersensitivity to the product, severe hepatic impairment, uncontrolled hypertension, use of any ergotamine or ergotamine-containing drug within 24 hours, presence of ischemic vascular disease, and current use or use of monoamine oxidase inhibitors within 2 weeks. Adverse reactions such as increased blood pressure, allergic reactions, acute myocardial infarction, fatal arrhythmia, cerebral hemorrhage, and subarachnoid hemorrhage may occur after administration. Specific use of the drug should be carried out under the guidance of a specialist, not unauthorized use of the drug.