Psychiatric Bulletin (1994) 18: 335-337. doi: 10.1192/pb.18.6.335
© 1994 The Royal College of Psychiatrists
Perception of equivalent doses of neuroleptic drugs
R. Mullen, Clinical Research Worker,
A.W. Caan, Audit Research Co-Ordinator and
S. Smith, Registrar in Psychiatry
The Maudsley Hospital, London SE5 8AZ
An anonymous questionnaire was sent to 67 senior and junior psychiatrists enquiring about their perception of equivalent antipsychotic dosages of three commonly used neuroleptic drugs. Thirty-one questionnaires were returned and revealed a wide variation in perceived potencies for the specific drugs. Increased experience in psychiatry was not associated with a decreased variation. On average clinicians saw haloperidol and flupenthixol decanoate as substantially less potent, relative to chlorpromazine, than the available literature would suggest.
Copyright © 1994 The Royal College of Psychiatrists.