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(Li Dongyuan)
Treats wind-cold pathogenic factors taking advantage of deficiency to lodge in the intestines and stomach, causing sundry diarrhea (xun xie) with undigested food; as well as intestinal wind bleeding. It also treats conditions where wind deficiency allows for increased appetite, accompanied by lockjaw, convulsions of the hands and feet, muscle twitching, and facial swelling. This condition is named "Stomach Wind" (When the Stomach is affected by wind, Wood pathogenic factors overcome Earth, resulting in undigested food in stool, termed sundry diarrhea; the Yangming meridian circulates around the face, hence facial swelling. Convulsions refer to the jerking of limbs, twitching refers to muscle tremors).
Ren Shen (Ginseng Radix), Bai Zhu (Atractylodis Rhizoma, stir-fried with soil), Fu Ling (Poria), Dang Gui (Angelicae Sinensis Radix, stir-fried with wine), Chuan Xiong (Ligustici Chuanxiong Rhizoma), Shao Yao (Paeoniae Radix Alba or Rubra, stir-fried with wine), Gui Zhi (Cinnamomi Ramulus, stir-fried) in equal parts.
Add one hundred grains of millet (decocted and taken).
This prescription consists of herbs belonging to the Foot-Yangming Stomach Meridian and Foot-Jueyin Liver Meridian. "Stomach Wind" refers to a state where Stomach Qi is deficient and wind pathogenic factors invade due to this weakness. Wind belongs to Liver Wood, which can overcome Spleen Earth; therefore, Ren Shen, Bai Zhu, and Fu Ling are used to tonify Spleen Qi and benefit Wei Qi (Defensive Qi); Dang Gui and Chuan Xiong nourish Liver Blood and harmonize Ying Qi (Nutritive Qi); Shao Yao drains Liver Qi thereby harmonizing the Spleen and Stomach; Rou Gui (Cinnamon Bark) disperses wind and pacifies Wood (Wood withers when encountering Cinnamon, akin to driving a nail into the root, killing the tree. Furthermore, pungent flavors disperse wind; thus, it can stop diarrhea and treat wind-dampness. It is also said: Bai Zhu and Fu Ling strengthen the Spleen and eliminate dampness, while Chuan Xiong and Rou Gui enter the blood level to drive out wind. *Yu Ji Wei Yi* states: Although this formula is named for treating wind, it does not directly treat wind, but rather treats wind by tonifying the healthy Qi).

Li Dongyuan's Stomach Wind Formula: Sheng Ma (Cimicifugae Rhizoma), Bai Zhi (Angelicae Dahuricae Radix, 1 qian 2 fen), Ma Huang (Ephedrae Herba, without removing joints), Ge Gen (Puerariae Lobatae Radix, 1 qian), Chai Hu (Bupleuri Radix), Qiang Huo (Notopterygii Rhizoma et Radix), Xi Xin (not explicitly listed but implied contextually or missing in source text segment, assuming standard composition if present, but strictly following text: Gao Ben (Ligustici Wallichii Rhizoma), Cang Zhu (Atractylodis Rhizoma), Man Jing Zi (Vittaginis Fructus), Cao Dou Kou (Cardamomi Fructus Rotundus), Huang Bo (Phellodendri Cortex), Dang Gui (Angelicae Sinensis Radix), Zhi Gan Cao (Glycyrrhizae Radix et Rhizoma Preparata with honey, each 5 fen). Add Sheng Jiang (Zingiberis Rhizoma Recens) and Da Zao (Jujubae Fructus) and decoct. It also treats Stomach Wind syndrome (Yu Jiayan says: Why does wind entering the Stomach result in the ability to eat? Generally, wind generates heat, consistent with the principle in *Nei Jing* that Bi syndrome transforms into Xiao Zhong (consumptive thirst). This formula only removes wind without clearing heat, because heat will inevitably resolve along with the wind. He further adds: One must add cold and sweet herbs such as Zhu Li (Bambusa Textilis Caulis Succus), Hua Fen (Trichosanthis Radix), Shi Gao (Gypsum Fibrosum), Wei Rui (Polygonati Odorati Rhizoma), Sheng Di Huang (Rehmanniae Radix), and Li Zhi (Pyrus Sinkiangensis Juice), combined with Sheng Ma, Ge Gen, and Gan Cao as the formulation. Someone asks: These two formulas differ in being tonifying versus dispersing, yet they treat the same syndrome. Why? Yu Jiayan replies: According to *Nei Jing*, "Wind becomes cold and heat," meaning wind enters the Stomach and酿 (ferments/creates) an imbalance between Ying and Wei Qi. This formula is one that drives Stomach wind to resolve from the exterior. However, if chronic wind leads to sundry diarrhea, the wind has entered the interior. In that case, Ren Shen should be the Sovereign herb, Gui Zhi and Bai Zhu the Ministers, and Fu Ling and Gan Cao the Assistants and Couriers, to dispel wind from within. This represents the balance between treating the exterior and interior. *Nei Jing*...)