title: Methadone: opioid, N-methyl-D-aspartate antagonist or both?
authors.forename: D
authors.initials: D
authors.lastname: Oxenham
authors.forename: K
authors.initials: K
authors.lastname: Farrer
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D006801:Humans; D008691:Methadone / Q000627:therapeutic use*; D016202:N-Methylaspartate / Q000627:therapeutic use*; D009294:Narcotics / Q000627:therapeutic use*; D010146:Pain / Q000188:drug therapy*; D016194:Receptors, N-Methyl-D-Aspartate
chemical_list: D000701:Analgesics, Opioid; D009294:Narcotics; D016194:Receptors, N-Methyl-D-Aspartate; D016202:N-Methylaspartate; D008691:Methadone