Methadone is a medication classified as a synthetic opioid. It is primarily used in the treatment of opioid addiction, particularly for individuals undergoing medication-assisted treatment (MAT) programs.

Methadone works by binding to the same receptors in the brain that are affected by opioids such as heroin or prescription painkillers. By occupying these receptors, methadone helps to reduce cravings and withdrawal symptoms, allowing individuals with opioid addiction to stabilize and focus on their recovery.