The observation was performed by radial immunoanalysis for the determination of concentration of gastrokinetin in plasma and its dynamic changes. Results showed that

after therapy

the concentration increased markedly （p < 0. 01）. The gastrokinetin began to increase 55mir.utes after drug administration and continued to increase for at least 145 minutes after administering the drug

indicating that the Granule can strengthen the intestinal movement which was related to the increase of plasmal gastrokinetin through excitation of humoral adjustment. This also contributed a new basis to the mechanism of action of the Granules based on the humoral control on the intestinal motor function.