Method for preventing and/or treating the cardiovascular and hepatic diseases induced by hyperlipidemia which comprises administered an effective amount of bioflavonoids extract derived from fructus crataegus (lipid metabolism and fructus crataegus)

The present invention relates to a method for inhibiting cholesterol synthesis through inhibiting the activity of 3-hydroxy-3-methyl-glutaryl-Co-enzyme A (3-HMG-CoA) reductase in a mammal, which comprises administering thereto an effective amount of bioflavonoids derived from fructus crataegus (Crataegus Oxyacantha) such as rutin, quercetin, kaempferol, vitexin or a mixture thereof.