Comparison of Thoracic Epidural Bupivacaine with Buprenorphine and Parenteral Ketorolac for Post- Thoracotomy Pain Relief

7,8,9 disorder. Further it requires skill and training, strict asepsis and careful observation of the patient. With parenteral opioids alone, the side effects like respiratory depression are intolerable. Thus, there is a need for choosing drug classes that will overlap for analgesia but not for side effects. Drug class that fits these requirements is that of NSAIDs . The advent of NSAIDs that selectively inhibit COX-2 may reduce COX-1-dependent side effects, opioid requirements and the incidence of chronic pain after surgery. The effectiveness of NSAIDs in alleviating pain and reducing requirements for opioids in the postoperative period