Methadone detoxification is a process which should be supervised by substance abuse professionals within a drug rehabilitation facility who understand how difficult and challenging methadone detox can be. Methadone detox is known to be far more serious in terms of symptoms and duration than even heroin detox, and users frequently 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 rehabilitation facility which has practical experience in handling this type of detoxification, and where the person can receive further treatment services to deal with all addiction issues.