Surgical procedures are associated with tissue injury and postoperative pain after surgical interventions. Aim: To evaluate the efficacy of intravenous magnesium sulphate on post operative analgesia following surgeries done under general anaesthesia. Objectives: 1. To evaluate post operative pain at different intervals following the use of preoperative and intraoperative intravenous magnesium sulphate 2. To assess the level of sedation in the immediate post operative period. 3. To monitor

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... namic parameters perioperatively. Material and Methods: This study was done on 60 patients posted for surgery under general anaesthesia, after fulfilling required formalities. 30 mins before induction of anaesthesia, in Group 1, MgSO4 infusion was administered at the rate of 40mg/kg in 100 ml NS IV over 15 mins and same volume of normal saline was administered in group 2. Results: The mean VAS score postoperatively in magnesium group are at 0