Methadone waa daawada opioid ee shaqaynaysa muddo dheer taas oo loo isticmaalo in lagu yareeyo calaamadaha ka-noqoshada dadka qabatimay heroin-ka ama daroogooyinka kale ee maandooriyaha. Waxa kale oo loo isticmaali karaa xanuun baabiiye ahaan. Marka methadone loo isticmaalo Dhibaatada Isticmaalka Opioid (OUD), waxay yaraynaysaa calaamadaha ka-noqoshada iyo rabitaanka daroogada laakiin ma keento "sare" ee la xidhiidha qabatinka daroogada. Methadone waa daawo si heer sare ah loo habeeyey oo marka loo isticmaalo OUD waxa kaliya oo lagu heli karaa barnaamijyada daawaynta opioid la ansixiyey (OTP). Tani waxay ku lug leedahay la socodka joogtada ah, la-talinta, iyo baarista daroogada si loo hubiyo in bukaanada ay horumar ka sameynayaan soo kabsashadooda.