Methadone, a new look at an old drug.
D000284:Administration, Oral; D000700:Analgesics / Q000627:therapeutic use; D004335:Drug and Narcotic Control; D003932:Heroin; D006801:Humans; D007275:Injections, Intravenous; D007279:Injections, Subcutaneous; D008691:Methadone / Q000008:administration & dosage / Q000009:adverse effects / Q000506:poisoning; D009021:Morphine Dependence / Q000188:drug therapy; D019966:Substance-Related Disorders / Q000188:drug therapy
D000700:Analgesics; D003932:Heroin; D008691:Methadone