Methods:TLC was used to detect the four essential ingredients Radix et Rhizoma Rhei,Cortex Phellodendri,Radix Scutellariae and Fructus Gardeniae in the pill.

• 方法:利用薄层色谱对其中大黄、黄柏、黄芩和栀子4种主药进行检出研究。