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': 'Which drug is contraindicated in patients allergic to sulphonamides ? \nSelect and explain. \nA. Brizolamide, B. Brimonidine, C. Zonisamide, D. Bimatoprost', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Zonisamide Zonisamide is a sulfonamide medication used for the treatment of seizures. It has been associated with severe skin reactions, those typically seen with sulfa reactions. This medication should not be used in sulfa-allergic patients.", 'role': 'assistant'}]