title: Prevention of narcotic-induced constipation.
mesh_terms: D000880:Anthraquinones / Q000627:therapeutic use*; D002400:Cathartics / Q000627:therapeutic use*; D003248:Constipation / Q000517:prevention & control*; D006801:Humans; D009294:Narcotics / Q000009:adverse effects*
chemical_list: D000880:Anthraquinones; D002400:Cathartics; D009294:Narcotics