“Glycyrrhizae Radix, … Rhizoma, Scutellariae Radix , Poria, Zizyphi Fructus, Zingiberis Rhizoma (dry), Coptidis Rhizoma, Ephedrae Herba … Asiasari Radix significantly enhanced the sensitivity to a MDR1 substrate paclitaxel , whereas none of the herbal extracts used had any effect on the sensitivity to 5-fluorouracil, which is not a substrate for MDR1.”