title: Proceedings: Brain levels of the potent analgesic etorphine in rats and their functional significance.
mesh_terms: D000701:Analgesics, Opioid / Q000378:metabolism / Q000494:pharmacology*; D000818:Animals; D001923:Brain Chemistry / Q000187:drug effects*; D003521:Cyclopropanes / Q000494:pharmacology; D005048:Etorphine / Q000494:pharmacology*; D008297:Male; D009019:Morphinans / Q000494:pharmacology*; D009292:Narcotic Antagonists / Q000494:pharmacology; D051381:Rats
chemical_list: D000701:Analgesics, Opioid; D003521:Cyclopropanes; D009019:Morphinans; D009292:Narcotic Antagonists; D005048:Etorphine