This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epilepsy, Subject name: Pharmacology
[{'content': 'Pseudolymphoma occurs because of long term use of : \nSelect and explain. \nA. Carbamazepine, B. Phenobarbital, C. Phenytoin, D. Primidone', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Side effects of phenytoin Gingival hyperplasia Lymphadenopathy Hirsutism Osteomalacia Facial coarsening Skin rash', 'role': 'assistant'}]