肉毒碱(carnitine,简称cart)有明显的正性肌力作用,能对抗某些原因引起的心律失常,与毒K合用尚能使毒K引起心律失常的剂量明显增加。因而提示了cart治疗心衰的可能性。乙酰肉毒碱(acetylcarnitine,简称acart)是cart的乙酰化物,文献报道其正性肌力作用比cart强。为了比较acart和cart的强心作用及了解acart和毒K间的相互作用, Carnitine (carnitine, cartilage) has obvious positive inotropic effect, can fight some of the causes of arrhythmia, combined with the poison K can make poison K cause a significant increase in the dose of arrhythmia. Thus prompted cart the possibility of treatment of heart failure. Acetylcarnitine (acetylcarnitine, referred to as acart) is acetylated cartesian, reported positive inotropic effect than cart strong. In order to compare the cardiotonic effects of acart and cart and to understand the interaction between acart and toxin K,