The objective of this study was to investigate the protective effect of tannins from Sanguisorba officinalis on myelosuppression in mice. The myelosuppression model was induced by peritoneal injection of cyclophosphamide( CTX). Then the myelosuppression mice were randomly divided into: model group,colony-stimulating factor group,three ziyuglycoside-I treatment groups( 5,2. 5,0. 5 mg / kg),three ziyuglycoside-Ⅱ treatment groups( 5,2. 5,0. 5 mg / kg),three Burnet prosapogenins treatment groups( 5,2. 5,0. 5 mg...