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
In obsessive - compulsive disorder, which is not given : 
Select and explain. 
A. Clomipramine, B. Haloperidol, C. Sertraline, D. Carbamazepine
B: Haloperidol
Answer: B: Haloperidol 
Explanation: Drugs used for OCD :

Antidepressants : SSRIs (fluoxetine, paroxetine, sertraline, citalopram), clomipramine.
Other drugs : If treatment with SSRIs or clomipramine fails, addition of valproate or carbamazepine or lithium may augment the effect of SSRIs or clomipramine. Other drugs that can be tried in the treatment of OCD are venlafaxine, pindolol, MAOIs (phenelzine), clonazepam, buspirone.