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
mood stablizer used in the management of drug induced neutropenia 
Select and explain. 
A. lithium, B. valproate, C. carbamezepine, D. lamotrigine
A: lithium
Answer: A: lithium 
Explanation: - Lithium has a narrow therapeutic index - GIT == diarrhea, vomiting - NEUROLOGICAL=== tremor, co ordination - Therapeutic level is 0.8-1.2meq/l - HEMODIALYSIS is the TOC for lithium toxicity - OTHER USES - Anti- suicidal propey, used to prevent suicide. - Correct drug induced neutropenia. ref, kaplon and sadock, synopsis of psychiatry, 11 thh edition, pg no. 935