This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'A drug used to prevent niacin-induced flushing is \nSelect and explain. \nA. Paracetamol, B. Cetrizine, C. Aspirin, D. Dexamathasone', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Niacin-induced flushing:Prostaglandin-mediatedAlways stas in the face and may be accompanied by skin dryness, itching, paraesthesia and headachePremedication with aspirin may allete these symptomsFlushing is subject to tachyphylaxis and often improves with time(Ref: Harrison&;s 18/e p598)', 'role': 'assistant'}]