Methadone is a synthetic opioid used primarily to treat opioid addiction and manage chronic pain. It works by binding to the same receptors in the brain as other opioids, but it does so in a way that helps reduce withdrawal symptoms and cravings without producing the same intense high. Methadone is typically administered in a controlled setting, such as a clinic, to ensure proper dosage and monitoring. It is part of a comprehensive treatment plan that may include counseling and support services, helping individuals transition away from more harmful substances like heroin or prescription painkillers.