Shortest acting muscle relaxant is
Succinylcholine
Vecuronium
Pancuronium
Atracurium
Ans) aSuccinylcholine is the only available depolarizing neuromuscular blocker. It is characterized by rapid onset of effect and ultrashort duration of ac-tion because of its rapid hydrolysis by butyryl cholinesterase.Classification of nondepolarizing neuromuscular blockers according to duration of action (time to T1 = 25% of control) after twice the ED95Class of BlockerLong-Acting (>50 min)Intermediate- Acting (20-50 min)Short-Acting (15-12 min)Ultrashort- acting (<10-12min)Steroidal compoundPancuronium pipecuroniumVecuronium Rocuronium Benzylisoquinolinium compoundsd-Tubocurarine Metocurine DoxacuriumAtracurium CisatrucuriumMivacurium Others Asymmetrical mixed-onium chlorofumarates GantacuriumPhenolic etherGallamine Diallyl derivative of toxiferineAlcuromum
Muscle Relaxant