This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
[{'content': 'Drug of choice for Trigeminal neuralgia is: \nSelect and explain. \nA. Carbamazepine, B. Phenobabitone, C. Phenytoin, D. Valproic acid', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Trigeminal and related neuralgias: Carbamazepine is the drug of choice. These neuralgia;. characterized by attacks of high intensity electric shock-like or stabbing pain set off by evening. REF: KD TRIPATHI 8TH ED.', 'role': 'assistant'}]