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Treats the retention of cold pathogenic factors and cold food in the stomach. Leading to fullness and pain in the heart and abdomen, and unrelieved bowel movements.

Jiangdou Dahuang Beiji Wan (Prepared Emergency Pill with Ginger, Bean, and Rhubarb). (Composed of Ganjiang [Dried Ginger], Dahuang [Rhubarb] each 2 liang, Badou [Croton Seed] 1 liang. Remove the skin of Badou, grind into a paste-like consistency, mix with honey to form pills the size of beans. Store tightly sealed to prevent moisture leakage. For use: take 3-4 pills per dose, swallow with boiling water or wine.) Specifically attacks obstruction-pain and retained cold. Also treats sudden collapse due to Zhong'e (Sudden attack by foul pathogens causing coma). When Yin Jie (Yin Constipation caused by cold stagnation) is critical, taking this brings peace.

Ke Yunbo said: Unrelieved bowel movements should be differentiated into Yang Jie (Yang Constipation) and Yin Jie (Yin Constipation). Yang Jie has Chengqi Tang (Cinnamon Twig and Rhubarb Decoction) formulas for purging. Yin Jie prepares Beiji Wan and Baisan (White Powder) formulas. The *Jingui Yaolue* uses this formula to treat Zhong'e; one must know it is suitable for cases where cold pathogens strike suddenly. If used for warm diseases or summerheat heat pathogens, it would hasten death. This formula is indeed established for Yin Jie. Ganjiang disperses cold pathogens in the Middle Jiao (Middle Burner); Badou expels cold accumulations in the intestines and stomach; Dahuang unblocks the "Earthly Path" (intestines) and can also detoxify Badou. It is an army with restraint. However, Baisan treats cold accumulation in the chest, so it uses Jiegeng (Platycodon Root) to assist Badou, employing both vomiting and purging methods to resolve the condition. Here, however, it treats cold accumulation in the intestines and stomach, so it uses Dahuang to assist Ganjiang and Badou to directly attack the cold. People only know of warming and tonifying methods, but do not know of warming and purging methods. Therefore, they only discuss deficiency-cold, but do not discuss cold-excess (Cold Excess Syndrome).

It is Dachengqi Tang (Formula seen in *Zhenfang Geku*, Upper Volume, Yangming Section) plus Gancao [Licorice Root] 2 qian.

Chen Xiuyuan said: Zhang Zhongjing's three Chengqi Tangs are perfect and flawless, with nothing to add or subtract. Liu Hejian added one herb, Gancao, to this formula, thereby exceeding Zhang Zhongjing's rules. However, its intent is to harmonize the Stomach, which is quite suitable for surgical miscellaneous diseases etc. It ranks higher than Tao Jian'an's Liuyi Shunqi Tang (Six-One Smooth Qi Decoction).

Furthermore, according to Zhang Xiangong: "Cheng" means receiving from the humble to the noble without independent achievement. Heaven is noble, Earth is humble; they share one shape and Qi. Shape is governed by Qi, thus Earth governs Heaven. Shape receives Qi, thus Earth receives Heaven. The Stomach belongs to Earth, a category of Kun (Earth Trigram). Qi belongs to Yang, a category of Qian (Heaven Trigram). The Stomach is the head of the twelve meridians, transforming waste, transporting essence, circulating flavors in and out, becoming the Fu organs of transmission and transformation. Is it merely relying on its solid form? It also receives this unceasing, vigorous Qi. The decoction is named Chengqi (Receiving Qi), truly having its meaning, not meaning "smooth Qi". Zhang Xiangong's interpretation surpasses predecessors. Therefore, I have recorded it after *Zhenfang Geku*, and re-recorded it here. The more I read, the more flavor I find. Regrettably, his work *Shanghan Leishu* (Classified Commentary on Cold Damage) was not published. Zhang Xiangong, courtesy name Xiaopei, was a person from Guwu.