Adanon; Algovetin; Althose; Amidon; Amidone; Biscuits; Dextromethadone; Diaminon; Dollies; Dolly; Dolophin; Dolophine; Heptadone; Heptanon; Ketalgin; Levometadona; Levomethadonum; Levothyl; Metadona; Metadone; Metasedin; Methadon; Methadona; Methadonum; Methaquaione; Phenadone; Polamidone; Polamivet; Westadone; Dolophine HCL; Levomethadone [INN]; Metadona [Spanish]; Metadone [DCIT]; Methadona [Spanish]; Methadone HCL Intensol; Methadone M; Methadonum [Latin]; Racemic methadone; A 4624; AN 148; Hoechst 10820; K 174; Amidone (TN); D-Methadone; Dl-Methadone; Dolophine (TN); Heptadon (TN); Heptanon (pharmaceutical); L-Methadone; L-Polamidon; L-Polamivet; Levometadona [INN-Spanish]; Levomethadonum [INN-Latin]; Metadona [INN-Spanish]; Methadone (BAN); Methadone [INN:BAN]; Methadonum [INN-Latin]; Methadose (TN); Physeptone (TN); Sedo-Rapide; Symoron (TN); Dolophine (*Hydrochloride*); Fenadone (*Hydrochloride*); Heptadone (*Hydrochloride*); Heptanon (*Hydrochloride*); Hoescht 10820 (*Hydrochloride*); Phenadone (*Hydrochloride*); AN-148 (*Hydrochloride*); L-(+)-Methadone; S-(+)-Methadone; D-6-(Dimethylamino)-4,4-diphenyl-3-heptanone; L-6-(Dimethylamino)-4,4-diphenyl-3-heptanone; (+)-Methadone; (+-)-Methadone; (+/-)-Methadone; (+/-)-Tussal; (-)-(R)-6-(Dimethylamino)-4,4-diphenyl-3-heptanone; (-)-Methadone; (6R)-Methadone; (R)-6-(Dimethylamino)-4,4-diphenyl-3-heptanone; (R)-6-(Dimethylamino)-4,4-diphenyl-3-hetpanone; (S)-6-(Dimethylamino)-4,4-diphenyl-3-heptanone; 3-Hetpanone, 6-(dimethylamino)-4,4-diphenyl-, (R)-(9CI); 6-(Dimethylamino)-4,4-diphenyl-3-heptanone dl-mixture; 6-(dimethylamino)-4,4-diphenylheptan-3-one; 6-Dimethylamino-4,4-diphenyl-3-heptanone; 6-dimethylamino-4,4-di(phenyl)heptan-3-one; 6S-Methadone