title: Opiate receptors and their definition by antagonists.
mesh_terms: D000777:Anesthetics / Q000037:antagonists & inhibitors / Q000494:pharmacology; D000818:Animals; D001667:Binding, Competitive; D018756:GABA Antagonists; D006801:Humans; D009292:Narcotic Antagonists / Q000494:pharmacology*; D011957:Receptors, Opioid / Q000187:drug effects*
chemical_list: D000777:Anesthetics; D018756:GABA Antagonists; D009292:Narcotic Antagonists; D011957:Receptors, Opioid