Pharmacotherapy of obsessive compulsive disorder.

The authors briefly review studies of the efficacy of potent serotonin reuptake inhibitors (SRIs) (e.g., clomipramine, fluvoxamine) in obsessive compulsive disorder (OCD) and compare the use of antidepressants in the treatment of depression and OCD. They propose an algorithm for those patients with OCD who fail to respond to an adequate trial with a potent SRI and discuss the promise and limitations of adding tryptophan, fenfluramine, lithium, buspirone, or a neuroleptic to ongoing SRI therapy. Other biological approaches (e.g., ECT, psychosurgery) are considered in terms of their narrowly defined roles in the treatment of patients with SRI-resistant OCD.