<prompt> Treatment of choice for Obsessive compulsive disorder isImipramineFluoxetineChlorpromazineBenzodiazepine  <response>: B Fluoxetine FLUOXETINE 20-80 mgday is a good alternative to clomipramine often preferred these days for its better side-effect profile in the treatment of Obsessive compulsive disorder. Clomipramine, fluoxetine, and fluvoxamine are approved for the treatment of OCD. Clomipramine is a TCA that is often tolerated poorly owing to anticholinergic and sedative side effects at the doses required to treat the illness 150 to 250 mgd. Its efficacy in OCD is unrelated to its antidepressant activity. Fluoxetine 40 to 60 mgd and fluvoxamine 100 to 300 mgd are as effective as clomipramine and have a more benign side-effect profile. 