<p> We compared the postoperative epidural analgesia provided by the continuous epidural infusion of Bupivacaine </p> <div>hydrochloride with that provided By a continuous infusion of bupivacaine hydrochloride plus fentanyl citrate.100 </div> <div>patients were randomly allocated in 2 groups of n=50 each to receive drugs .Group 1: inj. Bupivacaine hydrochloride </div> <div>0.125% Group 2: inj. Bupivacaine hydrochloride 0.125% and inj. Fentanyl citrate 2mcg/ml. Vitals,Visual analogue score, Sedation score and any </div> <div>side effects were observed. Adding fentanyl citrate 2 mcg/ml to bupivacaine hydrochloride 0.125% significantly reduced pain and increased </div> <div>quality of analgesia.Observation of side effects reflects that o.125% bupivacaine hydrochloride in group 1 has significant propensity to cause </div> <div>nausea and vomiting.Addition of inj. Fentanyl citrate 2mcg/ml to inj. Bupivacaine hydrochloride 0.125%for continuous epidural infusion </div> <div>significantly improved quality of analgesia, provided uniform stable analgesia without an attendant increase in side effects.</div>