The Efficacy and Safety of Clozapine Versus Chlorpromazine in Geriatric Schizophrenia
J Clin Psychiatry 1999;60(1):41-44
© Copyright 2014 Physicians Postgraduate Press, Inc.
Purchase This PDF for $40.00
If you are not a paid subscriber, you may purchase the PDF.
(You'll need the free Adobe Acrobat Reader.)
Receive immediate full-text access to JCP. You can subscribe to JCP online-only ($86) or print + online ($156 individual).
With your subscription, receive a free PDF collection of the NCDEU Festschrift articles. Hurry! This offer ends December 31, 2011.
If you are a paid subscriber to JCP and do not yet have a username and password, activate your subscription now.
As a paid subscriber who has activated your subscription, you have access to the HTML and PDF versions of this item.
Click here to login.
Did you forget your password?
Still can't log in? Contact the Circulation Department at 1-800-489-1001 x4 or send email
Background: There has been an absence of controlled studies focusing specifically on neuroleptic treatment in the elderly schizophrenic population. Therefore, we conducted a 12-week double-blind comparison study to assess the efficacy and tolerability of clozapine and chlorpromazine in a group of elderly inpatients with chronic schizophrenia.
Method: Forty-two elderly DSM-IV schizophrenic veterans were randomly assigned to clozapine or chlorpromazine and assessed for efficacy at baseline and at termination with the Positive and Negative Syndrome Scale (PANSS) and the Clinical Global Impressions scale (CGI). Side effects were also monitored. Medications were titrated, on the basis of clinical response and side effects, to a maximum dose of 300 mg/day of clozapine or 600 mg/day of chlorpromazine.
Results:The results suggest that both the chlorpromazine and clozapine groups improved their PANSS scores at termination compared with baseline, but the difference between the 2 groups was not statistically significant. The mean CGI scores reflecting severity of illness also demonstrated improvement in both groups over time. Both groups had similar incidences of side effects. One patient in each group had a life-threatening side effect. More patients taking clozapine had tachycardia and weight gain, while more chlorpromazine patients noted sedation.
Conclusion: We concluded that both clozapine and chlorpromazine are effective treatments for psychosis and behavioral disturbances in geriatric schizophrenia. Both agents had similar incidences of side effects. With careful monitoring and titration of dosage, both clozapine and chlorpromazine were fairly well tolerated in this population.