This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia, Subject name: Pharmacology
[{'content': 'Shoest acting non depolarising muscle relaxant \nSelect and explain. \nA. Succinylcholine, B. Rapacuronium, C. Atracurium, D. Pancuronium', 'role': 'user'}, {'content': "Answer: B \nExplanation: Refer Miller's anesthesia 5/e p 892 Among the given options Rapacuronium IA the shoest acting drug Rapacuronium has been withdrawn from the market because it produces intense bronchospasm in a significant number of patients Mivacurium is shoest acting NDMR", 'role': 'assistant'}]