Development of tolerance to ergot alkaloids in a patient with unusually severe migraine.
D002317:Cardiovascular Agents; D004876:Ergot Alkaloids / Q000627:therapeutic use*; D006801:Humans; D007108:Immune Tolerance; D008881:Migraine Disorders
D002317:Cardiovascular Agents; D004876:Ergot Alkaloids
ERGOT AND ERGOT PREPARATIONS; MIGRAINE