title: Etorphine induction of analgesia and catatonia in the rat: systemic or intracranial injection.
mesh_terms: D000698:Analgesia; D000818:Animals; D001921:Brain / Q000033:anatomy & histology; D002389:Catatonia / Q000139:chemically induced*; D002531:Cerebellum; D005048:Etorphine / Q000008:administration & dosage / Q000494:pharmacology*; D005260:Female; D006801:Humans; D007274:Injections, Intraperitoneal; D008297:Male; D008845:Microinjections; D009019:Morphinans / Q000494:pharmacology*; D051381:Rats; D011930:Reaction Time / Q000187:drug effects
chemical_list: D009019:Morphinans; D005048:Etorphine