This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non-depolarising Neuromuscular Blocking Agents, Subject name: Anaesthesia
Shortest acting non depolarising muscle relaxant: 
Select and explain. 
A. Vecuronium, B. Atracurium, C. Succinylcholine, D. Mivacurium
D: Mivacurium
Answer: D: Mivacurium 
Explanation: Ans. is 'd' i.e. Mivacurium Shortest acting non depolarizing muscle relaxant is - Mivacurium*Longest acting non depolarizing muscle relaxant is - Pipecuronium*Most potent N.D muscle relaxant - Doxacurium*Least potent N.D muscle relaxant - Gallamine*Shortest acting depolarizing M.R. - Succinylcholine*Overall shortest acting M.R. - Succinylcholine*