AIM: To choose the proper excipient for molding process of Tongluo Mini-Pill (Radix Astragali,Radix Augelicae sinensis,Flos longicerae Japonicae,etc) and couplet its production. METHODS: A variety of excipients properties such as fluidity,solubility and dissolution were compared to select and determine the processing parameters of rotary perlletizer. RESULTS: Recommendation was made applying processing parameters that 10% PEG_ 2000 ,10% PEG_ 2000 or 10% gum arabic used for excipient,pelletizer had a rotational velosity of 100 rpm.pressure of 0.04 Mpa and feeding rate of 1200 g?min -1 . CONCLUSION:Selection of excipients is a key to make Tonglu Mini-Pill.
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