Objective To assess the efficacy and safety of lornoxicam

one non-steroidal anti-inflammatory drug （NSAID） in patient-controlled analgesia （PCA） in patients undergoing abdominal surgeries. Methods Thirty-nine patients scheduled for abdominal surgeries were randomly assigned to different PCA treatment groups using either lornoxicam or fentanyl postoperatively. Pain intensity difference （PID） and sum of pain intensity difference （SPID） were used to assess the analgesic efficacy of both drugs during a 24-hour period. Results The analgesic efficacy of lornoxicam is 1/66 of fentanyl

which was shown by SPID value of 3.250 and 3.058

respectively （P > 0.05）. Lornoxicam caused fewer adverse events than fentanyl （33% vs. 68%

P < 0.05）. Conclusion In clinic

we can use lornoxicam to treat postoperative pain effectively and with less adverse reactions com-pared with fentanyl.