Peripheral muscle relaxants classification

1) Neuromuscular blocking agents

i) Competitive antagonists (Non-depolarizing)

a) Long acting

d-Tubocurarine

Pancuronium

Doxacurium

Pipecuronium

b) Intermediate acting

Vecuronium

Atracurium

Cisatracurium

Rocuronium

Rapacuronium

c) Short acting

Mivacurium

d) Ultrashort acting

Gantacurium

ii) Depolarizing blockers

Succinylcholine 

Decamethonium

2) Agents acting directly on skeletal muscle

Dantrolene

Quinine