Oxycodone is a potent opioid analgesic (pain reliever) used to treat moderate to severe pain. It is similar to other opioids such as morphine, hydrocodone, and fentanyl, but it is unique in its strength and effectiveness in managing pain. Oxycodone is typically prescribed for patients with chronic pain, severe injury, post-surgical pain, or cancer-related pain. It is also a key ingredient in several brand-name medications, including OxyContin, Percocet, and Roxicodone.