Objective:To observe the effect on the flavoniod of Huanglian Jiedu decoction,and discuss its material base in reversing multiple-drug resistance(MDR) of cancer so as to provide the theory basis for Huanglian Jiedu decoction in clinical practices.Method: MTT assay was adopted to test the sensitivity of baicalin and geniposide to adriamycin(ADM) of K562/ADM,the inhibitory rate was calculated,the value of 50% inhibition concentration(IC50) and the multiple of the reversal of drug resistance as well as the cha...