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
[{'content': 'Drug specifically used for depressive phase of bipolar disorder is - \nSelect and explain. \nA. Carbamazepine, B. Valproate, C. Lithium, D. Lamotrigine', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Lamotrigine o Lamotrigine is the first anticonvulsant to be of benefit in bipolar depression", 'role': 'assistant'}]