title: Methadone.
mesh_terms: D000284:Administration, Oral; D000553:Ambulatory Care; D003932:Heroin; D006801:Humans; D008691:Methadone / Q000008:administration & dosage / Q000627:therapeutic use*; D019966:Substance-Related Disorders / Q000188:drug therapy* / Q000453:epidemiology; D014481:United States
chemical_list: D003932:Heroin; D008691:Methadone