PAROXETINE VERSUS CLOMIPRAMINE IN THE TREATMENT OF OBSESSIVE-COMPULSIVE DISORDER

Background. The aim was to assess the effect of a flexible dose of par oxetine, compared with clomipramine and placebo in obsessive-compulsiv e disorder (OCD). Method. In a multinational randomised study, 406 sub jects with OCD of at least. six months duration received double-blind medication for up to 12 weeks. Doses were adjusted according to therap eutic effect and side-effects. Primary efficacy measures were the Yale -Brown Obsessive-Compulsive Scale and the National Institute of Mental Health Obsessive-Compulsive Scale. Secondary efficacy measures were t he Montgomery-Asberg Depression Rating Scale, Symptom Check-List (90), Clinical Global impression, and Patients' Global Evaluation. Results. Paroxetine was significantly more effective than placebo and of compa rable efficacy to clomipramine. Paroxetine had significantly superior tolerability to clomipramine on three measures: CGI efficacy index, an ticholinergic adverse events, and adverse events leading to withdrawal . Conclusion. Paroxetine is as effective as clomipramine in the treatm ent of OCD. The comparable efficacy and better tolerability of paroxet ine suggest that it would be an appropriate treatment for OCD.