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
The drug of choice for obsessive - compulsive disorder : 
Select and explain. 
A. Imipramine, B. Fluoxetine, C. Chlorpromazine, D. Benzodiazepine
B: Fluoxetine
Answer: B: Fluoxetine 
Explanation: Antidepressants are the drugs of choice for OCD. Amongst antidepressants SSRIs (fluoxetine, paroxetine, sertraline, citalopram) are the drug of choice for OCD.