title: A clinical study of methysergide in Parkinsonism: evidence against a serotonergic mechanism.
mesh_terms: D000328:Adult; D000368:Aged; D001479:Basal Ganglia / Q000378:metabolism*; D003342:Corpus Striatum / Q000378:metabolism; D004295:Dihydroxyphenylalanine / Q000627:therapeutic use; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007031:Hypothalamus / Q000378:metabolism; D008297:Male; D008784:Methysergide / Q000008:administration & dosage / Q000627:therapeutic use*; D008875:Middle Aged; D010300:Parkinson Disease / Q000188:drug therapy* / Q000378:metabolism; D012701:Serotonin / Q000378:metabolism*; D012702:Serotonin Antagonists; D014202:Tremor / Q000188:drug therapy
chemical_list: D012702:Serotonin Antagonists; D012701:Serotonin; D004295:Dihydroxyphenylalanine; D008784:Methysergide