Metoprolol is a selective β1 receptor blocker medication. It is used to treat high blood pressure, chest pain due to poor blood flow to the heart, and a number of conditions involving an abnormally fast heart rate. It is also used to prevent further heart problems after myocardial infarction and to prevent headaches in those with migraines.
Methysergide is used for prophylaxis of migraine headaches/cluster headaches but is no longer recommended due to retropulmonary/retroperitoneal fibrosis. It may also be used in the treatment of serotonin syndrome. It is also used in carcinoid syndrome to
Avitriptan, also known as BMS-180048, is a selective 5-HT1-like receptor agonist. Avitriptan is an effective compound for the treatment of migraine headaches with a prolonged duration of response. Avitriptan Is a Ligand and Agonist of Human Aryl Hydrocarbon Receptor That Induces CYP1A1 in Hepatic and Intestinal Cells.