title: Effects of naltrexone dose and history of naltrexone exposure on food- and codeine-maintained responding in rhesus monkeys.
mesh_terms: D000818:Animals; D003061:Codeine / Q000494:pharmacology; 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*; D011930:Reaction Time / Q000187:drug effects
chemical_list: D009270:Naloxone; D009271:Naltrexone; D003061:Codeine