作者选择６０例择期腰麻下剖宫产产妇，按随机双盲法分为两组：分别鞘内注吗啡０. １ｍｇ或０. ２５ ｍg，同时用 ０． ７５％布比卡因和２０ ｕｇ芬太尼腰麻下进行手术。术后感到疼痛时则直肠给予吲哚美辛１００ ｍg，继之口服萘普生 ５００ ｍｇ，每天两次至出院。术后按需每 The authors choose 60 cases of cesarean section under selective spinal anesthesia, randomized double-blind method is divided into two groups: intrathecal injection of morphine 0. 1mg or 0. 25 mg, 75% bupivacaine and 20 ug fentanyl spinal anesthesia. Postoperative pain was given indomethacin 100 mg rectally, followed by oral naproxen 500 mg twice daily until discharge. Postoperative as needed