Methadone detoxification is a process which must be supervised by substance abuse professionals within a drug rehab facility who realize how challenging and difficult methadone detoxification can be. Methadone detox is known to be far more severe in terms of symptoms and duration than even heroin detox, and users often revert back to methadone to relieve withdrawal symptoms or, worse yet, turn to heroin or prescription opioids to alleviate symptoms. This is why methadone detox should only be done under strict supervision at a drug rehabilitation facility which has practical experience in handling this type of detoxification, and where the individual can receive additional rehabilitation services to handle all addiction issues.