Further evidence of a dose-response threshold for haloperidol in psychosis

Am J Psychiatry. 1995 Aug;152(8):1210-2. doi: 10.1176/ajp.152.8.1210.

Abstract

Objective: The authors' goal was to determine whether higher doses of haloperidol improve antipsychotic response.

Method: During a 2-week, double-blind, randomized fixed-dose study, 24 psychotic patients were given 4, 10, or 40 mg/day of haloperidol.

Results: No clinically relevant difference between groups in favor of the higher antipsychotic doses could be detected.

Conclusions: Doses of 4 mg/day of haloperidol appear to be as effective as higher doses in the treatment of psychosis.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adult
  • Dose-Response Relationship, Drug
  • Double-Blind Method
  • Drug Administration Schedule
  • Female
  • Haloperidol / administration & dosage
  • Haloperidol / therapeutic use*
  • Humans
  • Male
  • Psychiatric Status Rating Scales
  • Psychotic Disorders / diagnosis
  • Psychotic Disorders / drug therapy*
  • Psychotic Disorders / psychology
  • Schizophrenia / diagnosis
  • Schizophrenia / drug therapy
  • Treatment Outcome

Substances

  • Haloperidol