Transdermal Buprenorphine versus Intramuscular Diclofenac for Postoperative Analgesia following Upper Abdominal Surgery under General Anesthesia: A Randomized Controlled Trial

Aim: To compare the post-operative analgesic effect of of buprenorphine 20 μg/h patch with diclofenac 75 mg intramuscular injection following upper abdominal surgery under general anesthesia (GA). Materials and Methods: An open-label, randomized, controlled trial (CTRI/2018/03/012694) was conducted with adult subjects of either sex, undergoing planned major upper abdominal surgery under GA. Preoperative medication regimen and anesthesia protocol...