Methadone detoxification is a course of action which must be overseen by substance abuse professionals within a drug rehab facility who realize how difficult and challenging methadone detox can be. Methadone detox is regarded to be far more severe in terms of symptoms and duration than even heroin detox, and users typically revert back to methadone to relieve withdrawal symptoms or, worse yet, turn to heroin or prescription opioids to relieve symptoms. This is why methadone detox must only be done under close supervision at a drug rehab facility which has experience in handling this type of detox, and where the person can receive further rehabilitation services to address all addiction issues.