Treatment of migraine headache.
D004878:Ergotamine / Q000627:therapeutic use*; D006801:Humans; D008784:Methysergide / Q000009:adverse effects / Q000627:therapeutic use*; D008881:Migraine Disorders / Q000188:drug therapy*; D012185:Retroperitoneal Fibrosis / Q000139:chemically induced
D004878:Ergotamine; D008784:Methysergide