The role of Glycyrrhizae Radix et Rhizoma in ZHANG Zhongjing's prescription system
Glycyrrhizae Radix et Rhizoma is the most commonly used herb in ZHANG Zhongjing's Treatise on Cold Pathogenic Diseases and Synopsis of Golden Chamber.It serves as a crucial entry point for understanding ZHANG Zhongjing's prescription system.The role of Glycyrrhizae Radix et Rhizoma in ZHANG Zhongjing's prescription system differs from its current recognized efficacy.By analyzing the typhoid prescriptions and referring to ancient materia medica texts from various dynasties,this study categorizes the formulas containing Glycyrrhizae Radix et Rhizoma and identifies four fundamental efficacies associated with it:fluid retention,preservation of gastric qi,support of yang qi,and protection of the triple energizer.These basic efficacy principles align with the core treatment principles implied in ZHANG Zhongjing's prescription system,suggesting that Glycyrrhizae Radix et Rhizoma is one of the key herbs in constructing ZHANG Zhongjing's prescription system.To elucidate the logical expansion of prescriptions,formulas containing Glycyrrhizae Radix et Rhizoma are deconstructed and classified into first-order,second-order,tertiary-order,quaternary-order,and other formulas based on the affinity of the paired herbs.Similarly,the corresponding herbs are classified accordingly.Using Cinnamomi Ramulus,Zingiberis Rhizoma,Paeonia lactiflora Pall.,and Ephedrae Herba as examples,the study analyzes the principles behind formulas containing Glycyrrhizae Radix et Rhizoma.ZHANG Zhongjing's prescription system strategically added or subtracted other herbs to fully utilize or extend the four fundamental effects of Glycyrrhizae Radix et Rhizoma,resulting in the majority of existing formulas through continuous expansion.This provides new insights and approaches for further in-depth study of ZHANG Zhongjing's prescription system.
Glycyrrizae Radix et Rhizomaclassical formulaZHANG Zhongjingtextual research
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