Problems of migraine.
D004878:Ergotamine / Q000627:therapeutic use; D006801:Humans; D008784:Methysergide / Q000009:adverse effects / Q000627:therapeutic use; D008881:Migraine Disorders / Q000188:drug therapy*; D010919:Placebos; D012702:Serotonin Antagonists
D010919:Placebos; D012702:Serotonin Antagonists; D004878:Ergotamine; D008784:Methysergide