title: Proceedings: Assessment of the agonist and antagonist activities of narcotic analgesic drugs by means of the mouse vas deferens.
mesh_terms: D000701:Analgesics, Opioid / Q000494:pharmacology*; D000818:Animals; D003061:Codeine / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D004558:Electric Stimulation; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects; D066298:In Vitro Techniques; D007981:Levorphanol / Q000494:pharmacology; D008297:Male; D008614:Meperidine / Q000494:pharmacology; D051379:Mice; D009022:Morphine Derivatives / Q000494:pharmacology; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects*; D011955:Receptors, Drug / Q000187:drug effects; D014649:Vas Deferens / Q000187:drug effects*
chemical_list: D000701:Analgesics, Opioid; D009022:Morphine Derivatives; D011955:Receptors, Drug; D007981:Levorphanol; D008614:Meperidine; D003061:Codeine