The document provides guidelines for pain control in surgical patients. It defines pain and classifies it as acute or chronic, nociceptive or neuropathic. It recommends using a combination of long-acting and short-acting opioids like morphine or hydromorphone for postoperative pain control. Non-opioid options like acetaminophen and NSAIDs are also discussed. Proper assessment and treatment of side effects are emphasized to balance safety and efficacy of pain management.