An aberrant pharmacodynamics responses to neuromuscular blocking drugs(NMBD)in burn patients increases the potential for lethal hyperkalemia with the administration of depolarizing muscle relaxant eg:succinylcholine and 2.5–5 folds increase in the dose of plasma concentration requirement for non–depolarizing muscle relaxants like :D–tubocurarine,metacurine,pancuronium,atracurium,vecuronium.Therefore Rocuronium may be the drug of choice in burn patients.This study was planned to assess the onset time and intubating conditions with two different doses of rocuronium in patients with thermal injury.It was concluded that in non–burn patient onset time(loss of response to TOF) was 85.5±4.8 sec with a dose of 0.9 mg/kg as compared to 1.2 mg/kg it was 60.55±70.4,while in burn patients (more than 30% burn area) these values were 120.83±6.81 sec and 86.16±5.2 respectively.