NEET PG / USMLE – MCQ 58

A 23-year-old man who is a graduate student comes to the physician because of a 3-month history of anxiety. He says that he has difficulty completing experiments in the laboratory and that he often worries about germs. He spends more than 2 hours daily cleaning his workbench with 50% hypochlorite solution to reduce his anxiety. He has persistent intrusive concerns that he will become infected while working with Serratia marcescens isolates. He becomes angry when others use his equipment or workbench. Physical examination shows no abnormalities. Which of the following is the most appropriate pharmacotherapy for this patient?
A. Amoxapine
B. Amoxicillin
C. Amphetamine
D. Carbamazepine
E. Chlorpromazine
F. Desipramine
G. Fluoxetine