Application of total extract composite of Luiwei Dijhuang decoction in preparing medicament for treating diabetic nephropathy

The invention provides application of a total extract composite of Luiwei Dihuang decoction in preparing a medicament for treating diabetic nephropathy. The total extract composite of Luiwei Dijhuang decoction consists of prepared rehmannia, prepared dogwood, yam, rhizoma alismatis, tree peony bark and poria in a weight ratio of 8:4:4:3:3:3, and is characterized by comprising the volatile oil beta-cyclodextrin inclusion complex components of the total extract of the Luiwei Dijhuang decoction, the polysaccharide components of the total extract of the Luiwei Dijhuang decoction, the glucoside components of the total extract of the Luiwei Dijhuang decoction and the fat-soluble components of the total extract of the Luiwei Dijhuang decoction. According to the application, the defect that the fat-soluble effective components of the total extract of the Luiwei Dijhuang decoction are ignored in the prior art can be overcome, and the more complete component composition of the total extract of the Luiwei Dijhuang decoc