Naltrexone is a medication primarily used to help individuals overcome addiction to opioids and reduce cravings for alcohol. It works by blocking the effects of these substances in the brain, which can help prevent relapse in people recovering from addiction. Naltrexone is available in both pill and injectable forms, making it a flexible option for treatment. In addition to its use in addiction treatment, naltrexone is sometimes prescribed for chronic pain management and certain autoimmune conditions. It is important for patients to work closely with their healthcare providers to determine the best treatment plan, as naltrexone may not be suitable for everyone.