Which of the following neuromuscular blocker is most cardiostable-: (A) Vecuronium, (B) d-tubocurare, (C) Atracurium, (D) Pancuronium
Answer is A. Benzylisoquinoline group causes histamine release so associated with hypotension and tachycardia. Aminosteroid group - no histamine release in aminosteroid group only pancuronium causes vagal blockade - Hypeension and Tachycardia.