This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuromuscular Blocker, Subject name: Anaesthesia
[{'content': 'Which of the following non depolarizing neuromuscular blocker does not release histamine:- \nSelect and explain. \nA. Vecuronium, B. d-tubocurarine, C. Atracurium, D. Mivacurium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Aminosteroid group of non-depolarizing neuromuscular blocker does not release histamine Benzylisoquinoline release histamine in following sequence d-tubocurare >>> atracurium = mivacurium > doxacurium Erythema, flushing, and hypotension are manifestations of histamine release.', 'role': 'assistant'}]