title: On the criteria for classifying opiate agonists in rats.
mesh_terms: D000700:Analgesics; D000818:Animals; D002606:Charcoal; D003496:Cyclazocine / Q000031:analogs & derivatives / Q000494:pharmacology; D016314:Ethylketocyclazocine; D005769:Gastrointestinal Motility / Q000187:drug effects; D008297:Male; D009020:Morphine / Q000494:pharmacology; D009270:Naloxone / Q000494:pharmacology; D009294:Narcotics / Q000145:classification* / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D000700:Analgesics; D009294:Narcotics; D002606:Charcoal; D009270:Naloxone; D016314:Ethylketocyclazocine; D009020:Morphine; D003496:Cyclazocine