The action of morphine and related substances on contraction and on acetylcholine output of coaxially stimulated guinea-pig ileum.
D000109:Acetylcholine / Q000502:physiology*; D003061:Codeine; D004361:Drug Tolerance; D006168:Guinea Pigs; D003932:Heroin; D007082:Ileum; D007422:Intestines / Q000502:physiology*; D008614:Meperidine; D008691:Methadone; D009020:Morphine / Q000494:pharmacology*; D009269:Nalorphine
D003932:Heroin; D009020:Morphine; D008614:Meperidine; D000109:Acetylcholine; D009269:Nalorphine; D008691:Methadone; D003061:Codeine
ACETYLCHOLINE/physiology; INTESTINES/physiology; MORPHINE/effects