Which of the following muscle relaxant has the maximum duration of action -: (A) Atracurium, (B) Vecuronium, (C) Rocuronium, (D) Doxacurium
Answer is D. Ans. is 'd' i.e., Doxacurium o Amongst the given options doxacurium is longest acting (Duration of action 90-120 minutes). Rocuronium (duration of action 30-60 minutes), Atracurium (duration of action 30-60 minutes) and vecuronium (duration of action 60-90 minutes) have shoer duration of action than doxacurium.