title: Comparison of subcutaneous and spinal subarachnoid injections of morphine and naloxone on analgesic tests in the rat.
mesh_terms: D000698:Analgesia; D000818:Animals; D001921:Brain / Q000378:metabolism; D007267:Injections; D007279:Injections, Subcutaneous; D008297:Male; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D009270:Naloxone / Q000008:administration & dosage / Q000378:metabolism / Q000494:pharmacology*; D051381:Rats; D011930:Reaction Time / Q000187:drug effects; D013346:Subarachnoid Space; D014828:Vocalization, Animal / Q000187:drug effects
chemical_list: D009270:Naloxone; D009020:Morphine