Two percent of HPMC appeared to be a satisfying suspending agent by evaluating the sedimentation rate and the redispersion of racecadotril.

• 通过对其沉降体积比、再分散性指标的考察,筛选了2%25HPMC助悬剂,并从流变学、混悬液黏度及显微形态等方面对其稳定性进行了研究。