title: Dissociation of analgesic and respiratory depressant properties in N-substituted analogues of etorphine.
mesh_terms: D000698:Analgesia; D000818:Animals; D004285:Dogs; D051379:Mice; D009019:Morphinans / Q000494:pharmacology*; D011817:Rabbits; D051381:Rats; D012119:Respiration / Q000187:drug effects
chemical_list: D009019:Morphinans