Opioid research focuses on studying the effects, mechanisms of action, and potential therapeutic uses of opioid drugs. Opioids are a class of drugs that include both prescription medications, such as oxycodone and fentanyl, and illegal substances, such as heroin. Research in this area aims to better understand how opioids interact with the brain and body, how they can be used safely and effectively for pain management, and how to prevent and treat opioid misuse and addiction. Opioid research also explores the development of alternative pain management strategies and medications that can reduce the need for opioid drugs.