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: Pharmacology
True about lamotrigene - 
Select and explain. 
A. Decreased efficacy in depression, B. First choice in absence seizure, C. t1/2 is 24 hrs, D. Not metabolised in liver
C: t1/2 is 24 hrs
Answer: C: t1/2 is 24 hrs 
Explanation: Ans. is 'c' i.e., t1/2 is 24 hrs o Lamotrigine is well absorbed orally, metabolized in liver. TY2 is 24 hours. o It is indicated in depressive phase of MDP.