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
Drug of choice for Trigeminal neuralgia is: 
Select and explain. 
A. Carbamazepine, B. Phenobabitone, C. Phenytoin, D. Valproic acid
A: Carbamazepine
Answer: A: Carbamazepine 
Explanation: 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.