Morphine impairs acetylcholine release but facilitates acetylcholine action at a skeletal neuromuscular junction.
D000109:Acetylcholine / Q000037:antagonists & inhibitors / Q000378:metabolism* / Q000502:physiology; D000818:Animals; D001001:Anura; D003864:Depression, Chemical; D006801:Humans; D066298:In Vitro Techniques; D008954:Models, Biological; D009020:Morphine / Q000494:pharmacology*; D009119:Muscle Contraction; D009469:Neuromuscular Junction / Q000187:drug effects / Q000502:physiology*; D013268:Stimulation, Chemical; D013375:Substance Withdrawal Syndrome / Q000209:etiology
D009020:Morphine; D000109:Acetylcholine