Epidural anesthesia is performed to provide anesthesia for surgical procedures carried on lower abdomen, pelvis, and lower limbs. It offers superior pain relief and early mobilisation especially when local anaesthetic is combined with an adjuvant.We compared the effects of adding magnesium sulphate to epidural Bupivacaine and buprenorphine to epidural bupivacainein patients undergoing lower abdominal and lower limb surgeries using combined spinal-epidural anaesthesia.