synthetic heroin(n = noun.artifact) dolophine hydrochloride, fixer, methadon, methadone, methadone hydrochloride - synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction;
is a kind of narcotic

heroin, heroin addict, heroin addiction, synthetic, synthetic cubism, synthetic fiber, synthetic resin, synthetic rubber, synthetic substance, synthetic thinking