title: Naltrexone effects on food-and codeine-maintained responding in rhesus monkeys.
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D003061:Codeine / Q000008:administration & dosage*; D003216:Conditioning, Operant / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D005502:Food; D008253:Macaca mulatta; D009270:Naloxone / Q000031:analogs & derivatives*; D009271:Naltrexone / Q000494:pharmacology*; D012054:Reinforcement, Psychology; D012646:Self Administration / Q000523:psychology
chemical_list: D009270:Naloxone; D009271:Naltrexone; D003061:Codeine