Zero, piece, multiple, compile, think

Pathogenesis refers to the essential principles governing the causes, locations, and changes of a disease throughout its course. Only when the pathogenesis is clearly understood can effective syndrome-based treatment be

**Composition** Ma Huang 9 grams (three liang) Gui Zhi 6 grams (two liang) Xing Ren 9 grams (seventy pieces) Zhi Gan Cao 6 grams (one liang)

Cold purgative formulas have the effect of clearing heat and attacking excess, suitable for syndromes of internal accumulation of real heat. Symptoms include severe constipation, fullness and pain in the epigastric regio

### 1. Da Huang Fu Zi Tang from "Jin Gui Yao Lue"

**Composition** Dried ginger 6 grams (two liang), Aconitum slices 9 grams (one large piece), Licorice 3 grams (two liang), Rheum palmatum 6 grams (four liang), Ginseng 6 grams (two liang).

**Composition** Rheum palmatum, Croton tiglium (oil removed), and dried ginger in equal amounts.

**Composition** Mazhu ren 15 grams (two sheng), Xing ren 9 grams (one sheng), Citrus aurantium immaturus 9 grams (half jin), Rheum palmatum 9 grams (one jin, peeled), Magnolia officinalis 9 grams (one chi, roasted and pe

**Composition** Dang Gui 12 grams, Niu Xi 6 grams, Cistanche deserticola (washed with alcohol to remove salt) 6 grams, Alisma orientalis 4.5 grams, Cimicifuga foetida 2 grams, Citrus aurantium 3 grams.

### 1. Huang Long Tang from "Six Books of Shang Han"

**Composition** Banxia 10 grams (half a sheng), Huanglian 3 grams (one liang), Huangqin, Ganjiang, and Renshen each 10 grams (three liang), Dazao 7 pieces (twelve pieces), Zhigancao 10 grams (three liang)