Objective: To establish the quality standards for fuyanke(FYK) granule.
Methods: The phellodendron Chinese schneid, polygonum cuspidatum, sieb. et Zucc and glycyrrihza uralensis fisch in FYK granule were identified by thin-layer chromatography(TLC). The contents of berberine were determined by thin-layer chromatographic scanning(TLCs).
Results: The average recovery rate was 97.86%, and the relative standard deviation 1.96%.
Conclusion: The method is simple, accurate and reliable.