The invention discloses a nano microcapsule for six ingredients with
rehmannia and a preparation process thereof. The preparation process comprises the following steps of: taking the traditional pills for six ingredients with the
rehmannia as a basis, adopting a multilevel dynamic hot
reflux method for extraction and concentration of
radix rehmanniae preparata, Poria cocos and rhizoma alismatis; carrying out nano-level crushing on dogwood, tree peony
bark and yam; and uniformly mixing the nano
fine powder and concentrated liquor according to certain proportion, carrying out freezing or spray-
drying treatment, preparing the nano microcapsule, and finally adopting a corresponding preparation technology to prepare into a
dosage form applicable on clinic. The process has the advantages of simple operation, short process flow, easy control of parameters, low cost, no toxic and side effects caused by organic reagents and the like. The nano microcapsule for six ingredients with the
rehmannia can be directly used, and also can be used as a
drug intermediate. In the nano microcapsule, the
drug effect can be obviously delayed, the administration times and amount can be reduced, and the toxic and
side effect caused by the traditional
drug is reduced or eliminated. The nano microcapsule is concentrated by more than three times compared with the existing nano microcapsule product for six ingredients with the rehmannia on the market, and the total daily dosage can be reduced by 3-6 times compared with the traditional products such as the concentrated six ingredients with the rehmannia and the like.