This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
[{'content': 'Drug of choice in mixed mania is \nSelect and explain. \nA. Lithium, B. Lamotrigine, C. Sodium Valproate, D. Carbamezepine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (A) Lithium # Lithium has traditionally been the drug of choice for the tratment of manic episode (acute phase) as well as for prevention of bipolar mood disorder.> Lamotigine is particularly effective for bipolar depression.> Sodium Valproate is useful for acute treatment of mania & prevention of bipolar mood disorder and particularly useful in those patients who are refractory to lithium.> Carbamazepine & Oxcarbazepine are useful for acute treatment of mania & prevention of bipolar mood disorder and particularly useful in those patients who are refractory to lithium & valproate.', 'role': 'assistant'}]