title: Propranolol and cluster headache.
mesh_terms: D000328:Adult; D006261:Headache / Q000188:drug therapy*; D006632:Histamine; D006801:Humans; D008297:Male; D011433:Propranolol / Q000627:therapeutic use*; D012008:Recurrence
chemical_list: D006632:Histamine; D011433:Propranolol