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: Social & Preventive Medicine
[{'content': 'Vitamin used in the treatment of hyperlipoproteinemia: September 2012 \nSelect and explain. \nA. Vitamin B1, B. Vitamin B6, C. Niacin/ Nicotinic acid, D. Vitamin B12', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans: C i.e. Niacin/ Nicotinic acid Immediate release niacin is effective at lowering cholesterol levels, and has minimal hepatotoxic side effects due to its rapid elimination from the body.', 'role': 'assistant'}]