Abstract:Extracts of different concentrations from Codimopsls pdosula were administered to the myocardial cells of rats,and the results indicated that the activity of PDE was inhibited in different wavs,and that cAMP was less hvdrolyredand increased in contents. When the extract was administered to the PRP of rabbits,the inhibiting rate of CaM activi-tv rose with the increase of concentration in the extract.