RESUMEN
AIM:To investigate the influence of pinellia heart-draining Decoction, Licorice heart-draining Decoction, Fresh ginger heart-draining Decoction and its dismantlements on the amount of gastric mucus in rats. METHODS:20 different combination of Banxiaxiexin Decoction and its analogus according to the unform design layout, the amount of gastric mucus in rats was determinated. Stepwise regression analysis was adopted to estimate the relationship between the pharmacological data and compatibility. RESULTS:Rhizoma Coptidis could reduce the amount of gastric mucus remarkbably, the interaction of Rhizoma Pinelliae、Fructus Ziziphi Jujubae and Radix Glycyrrhizae could increase the amount of gastric mucus, and interaction was confirmed among different medicinal ingredients in prescription. CONCLUSION:Uniform design provides a referable exeperimental design for studying analogus decoction compatibility law.