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
spina bifida is a complication of 
Select and explain. 
A. carbamezepine, B. clozapine, C. lithium, D. olanzapine
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 - CLEFT PALATE, FINGER NAIL HYPOLASIA, - SPINA BIFIDA Ref.kaplon and sadock, synopsis of psychiatry, 11 th edition, pg no. 935