title: Histaminergic responses of biliary sphincter in opossum.
mesh_terms: D000818:Animals; D002927:Cimetidine / Q000008:administration & dosage / Q000494:pharmacology*; D003135:Common Bile Duct / Q000187:drug effects*; D005260:Female; D006146:Guanidines / Q000494:pharmacology*; D006632:Histamine / Q000008:administration & dosage / Q000494:pharmacology*; D008297:Male; D008701:Methapyrilene / Q000494:pharmacology; D009130:Muscle, Smooth / Q000187:drug effects; D009893:Opossums / Q000502:physiology*; D011968:Receptors, Histamine / Q000032:analysis* / Q000187:drug effects; D011969:Receptors, Histamine H1 / Q000187:drug effects
chemical_list: D006146:Guanidines; D011968:Receptors, Histamine; D011969:Receptors, Histamine H1; D002927:Cimetidine; D006632:Histamine; D008701:Methapyrilene