This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anaesthesia, Subject name: Pharmacology
[{'content': 'Which of the following drug is commonly used for post-anesthetic shivering ? \nSelect and explain. \nA. Meperidine, B. Methylmorphine, C. Methadone, D. Morphine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: 1. Meperidine (also called pethidine)is used for postoperative shivering. 2. Meperidine combination drugs are also used for other drugs infusion related rigor and chills like Amphotericin B, Aldesleukin, Transtuzumab.', 'role': 'assistant'}]