Am J Psychiatry 1991; 148:790-792
Copyright © 1991 by American Psychiatric Association
Elevation of plasma concentrations of haloperidol after the addition of fluoxetine
DC Goff, KK Midha, AW Brotman, M Waites and RJ Baldessarini
Erich Lindemann Mental Health Center, Boston, Mass.
Fluoxetine (20 mg/day) was added for 7-10 days to stable doses of
haloperidol given to eight psychotic patients. Mean plasma concentrations
of haloperidol were elevated by 20% (p less than 0.05), but extrapyramidal
side effects did not increase appreciably, indicating a relatively minor
interaction between these agents.