title: Sleeplessness in acute and chronic schizophrenia--response to haloperidol and anti-parkinsonism agents.
mesh_terms: D000208:Acute Disease; D000328:Adult; D000978:Antiparkinson Agents / Q000627:therapeutic use*; D001143:Arousal; D001590:Benztropine / Q000627:therapeutic use; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D005260:Female; D006212:Hallucinations; D006220:Haloperidol / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D010919:Placebos; D011599:Psychopathology; D012559:Schizophrenia / Q000150:complications / Q000188:drug therapy*; D007319:Sleep Initiation and Maintenance Disorders / Q000188:drug therapy* / Q000209:etiology; D014282:Trihexyphenidyl / Q000627:therapeutic use*; D014326:Tropanes / Q000627:therapeutic use*
chemical_list: D000978:Antiparkinson Agents; D010919:Placebos; D014326:Tropanes; D001590:Benztropine; D014282:Trihexyphenidyl; D006220:Haloperidol