title: Levodopa ineffective in migraine.
mesh_terms: D000328:Adult; D004295:Dihydroxyphenylalanine / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000188:drug therapy*
chemical_list: D004295:Dihydroxyphenylalanine