title: Effects of epoxidation on the actions of normorphine, norcodeine, N-allylnormorphine(nalorphine) and N-allylnorcodeine on the electrically stimulated guinea pig ileum.
mesh_terms: D000818:Animals; D003061:Codeine / Q000031:analogs & derivatives / Q000494:pharmacology; D004558:Electric Stimulation; D004852:Epoxy Compounds / Q000138:chemical synthesis; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects; D066298:In Vitro Techniques; D008297:Male; D009022:Morphine Derivatives / Q000138:chemical synthesis* / Q000494:pharmacology; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects*; D009269:Nalorphine / Q000494:pharmacology
chemical_list: D004852:Epoxy Compounds; D009022:Morphine Derivatives; C010414:norcodeine; C013146:nalodeine; D009269:Nalorphine; D003061:Codeine; C010616:normorphine