This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
[{'content': 'Which of the following is a drug of choice for treatment of Obsessive Compulsive Disorder (OCD) in adults? \nSelect and explain. \nA. Imipramine, B. Fluoxetine, C. Chlopromazine, D. Benzodiazepine', 'role': 'user'}, {'content': "Answer: B \nExplanation: The selective serotonin reuptake inhibitors (SSRIs) are now considered to be first-line drug treatments in the management of obsessive compulsive disorder. Fluoxetine is the drug of choice. The doses are usually higher than for anti-depressant action. Clomipramine is still considered as a good option when fluoxetine does not work. Clomipramine has the most specific seratoninergic effects among the Tricyclic Antidepressants (TCAs). Ref: Kaplan & Sadock's Synopsis of Psychiatry 9 Edition, Page 622-23, 209; Harrison's Principles of Internal Medicine 16th Edition, Page 2552; A Sho Textbook of Psychiatry by Neeraj Ahuja, 8th Edition, Page 100", 'role': 'assistant'}]