methadon
- n synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction
- Thousands of heroin addicts have kicked the habit with the help of the synthetic drug methadone.
- To many of those involved in the fight against heroin addiction, methadone seems to be the most workable weapon yet devised.
- Methadone, which easily crosses the placental barrier, may impede the fetus's normal development.