This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Adverse effect of phenytoin include the following except- \nSelect and explain. \nA. Lymphadenopathy, B. Ataxia, C. Hypercalcemia, D. Hirsutism', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Hypercalcemia Phenytoin interferes with calcium metabolism by desensitizing target tissue to vit. D, this causes hypocalcemia (not hypercalcemia).", 'role': 'assistant'}]