“…32 Prostaglandin synthesis inhibitors, such as diclofenac and cyclo-oxygenase-2selective nonsteroidal anti-inflammatory drugs, reduce postoperative pain following laparoscopic cholecystectomy, but do not sufficiently control pain. 25 Oxycodone is an opioid agonist, and is superior to other opioids for treating visceral pain. 33 Oxycodone has affinity for k, , and Á receptors within the central, peripheral and autonomous nervous systems, inhibits adenylylcyclase, hyperpolarizes nerve cells, and reduces excitability.…”