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': 'Pseudolymphoma can result from long-term use of: \nSelect and explain. \nA. Phenytoin, B. Carbamazepine, C. Sodium valproate, D. Phenobarbital', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is option 1, phenytoin Cutaneous pseudolymphomas are benign lymphoproliferative processes mimicking lymphomas clinically and histologically. One of the precipitating factors for pseudolymphoma is drugs like anticonvulsants, antidepressants and angiotensin-conveing enzyme inhibitors. According to existing literature phenytoin-induced cutaneous pseudolymphomas are usually T-cell predominant. Ref:', 'role': 'assistant'}]