Elevation of plasma concentrations of haloperidol after the addition of fluoxetine.

Goff, D C; Midha, K K; Brotman, A W; Waites, M; Baldessarini, R J · Am J Psychiatry · 1991

case_series · Level IV

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Abstract

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.

Medical subject headings