methadone

A potent synthetic narcotic drug, C₂₁H₂₇NO, that is less addictive than morphine or heroin and is used as a substitute for these drugs in addiction treatment programs. It may also be used for chronic pain management.

A synthetic opioid analgesic, used to wean addicts off of heroin or other opiate based narcotics, and in chronic pain management.

synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction