Effect of Gukang oral liquid (GOL) on the bone biomechanics of ovariectomized rats was observed in this study. Ninety rats were randomly allocated to six groups :model group, three Gukang groups (with high, moderate and low dosages respectively) and nilestriol group. The results showed that torsion moment arm was higher in GOL groups with moderate and low dosages than that in model group (P< 0.05 ) while torsion rigidity stayed normal (P> 0.05 ).It is suggested that GOL at moderate and low dosages can p...