Succinylcholine has quicker onset of action, reliable and excellent intubating conditions with shorter duration but has undesirable side effects as fasciculation, rise intraocular pressure, rise in intragastric pressure and subsequent vomiting and regurgitation hyperkalaemia, rise serum CPK levels, myalgia and myoglobinuria. It is contraindicated in anticipated difficult intubation, severe kidney and liver disease, trauma, pregnancy, etc. Many methods were tried to decrease these side effects of succinylcholine by many scientists. Pretreatment with non-depolarizing muscle relaxant is one of that which found to be successful. In the present study, Rocuronium and Vecuronium were tried to evaluate their efficacy in reducing post succinylcholine fasciculation, intubating conditions, serum potassium and CPK, myalgia and myoglobin; 150 patients were divided into three groups according to administration normal saline Rocuronium, Vecuronium as pretreatment before Succinylcholine where general anaesthesia administration was essential. It was observed that pretreatment with Rocuronium and Vecuronium significantly reduced incidence and severity of fasciculation, better intubating conditions, no change in serum potassium and CPK levels, reduction in Myalgia and no change in myoglobin postoperatively. Rocuronium was found to be better than Vecuronium in all respects to minimize side effects of Succinylcholine.