This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharmacotherapy in psychiatry, Subject name: Anatomy
steven johnsons syndrome is a side effect of 
Select and explain. 
A. carbamezepine, B. lithium, C. clozapine, D. clonazepam
A: carbamezepine
Answer: A: carbamezepine 
Explanation: - SIDE EFFECTS OF THE DRUG - APLASTIC ANEMIA - AGRANULOCYTOSIS - Hyponatremia - Steven Johnson's syndrome - Liver enzyme elevation - It has teratogenic potential Ref.kaplon and sadock, synopsis of psychiaty, 11 th edition, pg no.923