Abstract:The complete Sini Decoction can significantly reduce the content of MDA in isehemic myocardium. Single ingredients of the deceetion,such as Radix Aconoti Praeparata or Radix Glycyrrhizae,except Rhizoma Zingiberis,also havesimilar effect but inferior to that of the complete decoction. Under the present conditions of experiment, anti-lipid peroxidation of Sini Decoction is significant at doses ranging from 0.05 to 0.2ml/20g. administrated for 2~7days at0.1ml/(20g·d).