title: New molecular complexes of methadone, its congeners and some other opiates with copper and iron.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002712:Chlorides; D003061:Codeine; D003300:Copper; D003460:Crystallization; D011431:Dextropropoxyphene; D004355:Drug Stability; D006556:Heroin Dependence; D006801:Humans; D007501:Iron; D008614:Meperidine; D008691:Methadone; D012996:Solutions; D013237:Stereoisomerism
chemical_list: D002712:Chlorides; D012996:Solutions; D003300:Copper; D008614:Meperidine; D007501:Iron; D011431:Dextropropoxyphene; D008691:Methadone; D003061:Codeine