The aqueous extract of Sargentodocca, Guneata causes significant inhibition of platelet aggregation induced by ADP in vitro and vivo, it also has a disaggroga-toay activity. Using Langendorff's preparation and the Umetsu method, we observed that the aqueous extract of Sargentodoxa Owneata significantly increased the coronary flow of the isolated perfused guinea-pig heart, but caused no change in the heart rate, and it reduced thrambus weight in rats. In this investigation, the aqueous extract of Sargentodox...