title: Oral methylnaltrexone for opioid-induced constipation.
authors.forename: C S
authors.initials: CS
authors.lastname: Yuan
authors.forename: J F
authors.initials: JF
authors.lastname: Foss
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000701:Analgesics, Opioid / Q000009:adverse effects; D003248:Constipation / Q000139:chemically induced / Q000188:drug therapy*; D006801:Humans; D008691:Methadone / Q000009:adverse effects; D009271:Naltrexone / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000627:therapeutic use*; D009292:Narcotic Antagonists / Q000008:administration & dosage / Q000627:therapeutic use*; D009294:Narcotics / Q000009:adverse effects; D000644:Quaternary Ammonium Compounds; D016037:Single-Blind Method
chemical_list: D000701:Analgesics, Opioid; D009292:Narcotic Antagonists; D009294:Narcotics; D000644:Quaternary Ammonium Compounds; C032257:methylnaltrexone; D009271:Naltrexone; D008691:Methadone