[Research on formulation process of yisheng capsule].

OBJECTIVE: To choose the best supplementary material and formulation process of Yisheng capsules. METHODS: The angle of repose, hygroscopicity and critical relative humidity were used as the indices to choose the formulation process of Yisheng capsules. RESULTS: The best technique conditions were as follows: the extract powder and microcrystalline cellulose were mixed in proportion of 2:1, the 95% alcohol was used as the wetting agent. CONCLUSION: The formulation process is rational and practicable.