The invention provides a method for preparing Shenshuaining preparations with a polymeric
flocculation and
precipitation technology. The method specifically comprises the following steps of: preparing the following bulk drugs: Radix Pseudostellariae,
Coptis, prepared
pinellia tuber,
tangerine peel, Poria cocos, rhubarb, etc.; preparing
rhubarb powder; preparing a rhubarb thick paste, adding a flocculating agent into a
percolation solution; preparing a medicinal thick paste, and adding a flocculating agent into an extracting solution; preparing a mixed thick paste; mixing the mixed thick paste and the
rhubarb powder uniformly; conducting
drying and crushing so as to obtain Shenshuaining medicinal
powder; preparing the Shenshuaining
powder into capsules, tablets, granules, pulvis, and oral liquid preparations; conducting inspection on the preparations with high-performance liquid
chromatography, taking a mobile phase composed of
methanol and water (45:55), controlling the detection
wavelength at 254nm and the
theoretical plate number greater than or equal to 5000, with the total
alkaloid content, in terms of
berberine hydrochloride, greater than 3.2mg in per 0.35g of the preparations. The Shenshuaining preparations of the invention have enhanced
chemical stability, stable product quality, better content homogeneity, very low content deviation, and greatly increased effective components. When the preparations are absorbed, the contents can be rapidly released, and the
in vivo utilization rate and
absorption rate are high.