title: Risperidone versus clozapine in the treatment of schizophrenic patients with acute symptoms: a double blind, randomized trial.
abstract: 1. In order to verify the hypothesis that risperidone is a useful therapeutic alternative to clozapine the authors carried out a randomized double blind trial in 59 patients with paranoid hallucinatory psychoses. 2. In a treatment lasting 28 days three groups of patients received either 4 mg risperidone (N = 20), 8 mg risperidone (N = 19), or 400 mg clozapine (N = 20) daily. 3. The tolerance of 4 mg risperidone was globally assessed as being better than that of 400 mg clozapine. Drop-outs under clozapine were mostly caused by side effects, whereas under risperidone they tended to occur for therapeutic inefficacy. 4. The antipsychotic effect was highly significant and clinically relevant under both risperidone and clozapine.
authors.affiliation: Psychiatric Hospital, Heinrich-Heine-University Düsseldorf/Rheinische Landes- und Hochschulklinik, Germany.
authors.forename: K
authors.initials: K
authors.lastname: Heinrich
authors.forename: E
authors.initials: E
authors.lastname: Klieser
authors.forename: E
authors.initials: E
authors.lastname: Lehmann
authors.forename: E
authors.initials: E
authors.lastname: Kinzler
authors.forename: H
authors.initials: H
authors.lastname: Hruschka
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D014150:Antipsychotic Agents / Q000009:adverse effects / Q000627:therapeutic use*; D001480:Basal Ganglia Diseases / Q000139:chemically induced; D003024:Clozapine / Q000009:adverse effects / Q000627:therapeutic use*; D004311:Double-Blind Method; D004562:Electrocardiography; D004569:Electroencephalography; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007555:Isoxazoles / Q000009:adverse effects / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D010880:Piperidines / Q000009:adverse effects / Q000627:therapeutic use*; D011569:Psychiatric Status Rating Scales; D018967:Risperidone; D012563:Schizophrenia, Paranoid / Q000188:drug therapy*
chemical_list: D014150:Antipsychotic Agents; D007555:Isoxazoles; D010880:Piperidines; D003024:Clozapine; D018967:Risperidone