Abstract:After acting on the cultured mouse ascitic reticulocytic sarcoma (ARS)cells for 24 hours, the panaxadiol-saponins from ginseng and leaves give rise to an inhibition in cell‘s DNA synthesis by incorporating 3H-TdR. The results from measuring the relative DNA contents of cells by micro-cytophotometry appear to be consistent with it. FCM analysis indicates that this inhibiting action is nonspecific cell cycle.