Xiaoyao Powder: A Classical Formula for Regulating Liver and Spleen - A Review

Abstract

Xiaoyao Powder, a classic formula in Traditional Chinese Medicine (TCM), demonstrates significant efficacy in soothing the liver and strengthening the spleen. This article systematically elaborates on the formula’s composition principles, the functions of its constituent herbs, and their synergistic relationships. By analyzing the pathological characteristics of liver depression and spleen deficiency syndrome, it explores the formula’s therapeutic strategy that concurrently addresses dispersion, tonification, clearing, warming, and strengthening. The focus lies on the mechanism through which Xiaoyao Powder restores the functional balance of the liver and spleen via soothing the liver to relieve depression and fortifying the spleen to nourish blood. Furthermore, common clinical modifications and application examples are analyzed, providing a theoretical basis and practical guidance for the modern clinical application of Xiaoyao Powder.