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: Anaesthesia
[{'content': 'Which of the following drugs are believed to be effective in the treatment of post–operative shivering ? \nSelect and explain. \nA. Ondansetron, B. Diclofenac Sodium, C. Pethidine, D. Paracetamol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: "Unlike other opioid agonists, meperidine (pethidine) frequently terminates shivering regardless of the cause".\n____ Morgan', 'role': 'assistant'}]