Table 1: Herbal prescriptions used in this study.

PrescriptionContents (g)

Huang lian jie du decoctionCoptis root (9), baical skullcap root (6), amur corktree bark (6), cape jasmine fruit (9)

Si jun zi decoctionGinseng (9), largehead atractylodes rhizome (9), poria (9), liquorice root (6)

Tao hong si wu decoctionPeach seed (9), safflower (6), Chinese angelica root (9), rehmannia root (12), rhizome of szechwan lovage (6), radix paeoniae rubra (9)

Qingyihuaji formulaHerba scutellariae barbatae (15), hedyotidis herba (15), amorphophallus konjac (15), coix seed (15), fiveleaf gynostemma herb (15), java amomum fruit (10)