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Gansui, Yuanhua, Daji (each 1 liang, all stir-fried with vinegar), Dahuang (2 liang), Hei Qianniu (head powder 4 liang), Qingpi, Chenpi, Muxiang, Binglang (each 0.5 liang), Qingfen (1 qian). To extract gu poison, add Wuyi (0.5 liang).
Grind the above herbs into fine powder, make pills with water. Take on an empty stomach.

Hejian formulated this prescription based on the example of Shizao Tang from Zhongjing's *Shanghan Lun*, primarily treating all diseases caused by water and dampness. Dairen said: Shizao Tang is the superior medicine for draining various waters in the body; this is what is meant by "using warm medicines to purge." For conditions such as abdominal fullness and distension, wheezing and coughing, stranguria and retention, ascites and edema, retained fluid and mass accumulation, qi and blood stagnation with obstruction, wind-heat dryness and depression, limb numbness, migratory pain, chronic or acute malaria and dysentery, as well as women's menstrual disorders and leukorrhea, one may treat according to this method, removing the disease as if sweeping it away. Therefore, Jia Tongzhi called it a miraculous drug like a deity. This prescription was established by Hejian; initially take five pills, three times a day, increasing the dose until there is rapid and effective bowel movement, then continue taking it regularly until the disease is cured. If after recovery, healthy people take it regularly, it can nourish the body, promote the circulation of qi and blood, and aid digestion. If suffering from extreme stuffiness and oppression, taking more may cause irritability and fullness without relief, worsening pain and discomfort. It is advisable to start with two pills, increasing by two pills per dose until rapid bowel movement occurs, adjusting according to circumstances. For children, make pills the size of hemp seeds, increasing or decreasing according to strength; those aged three or four years take three to five pills, adjusting according to the aforementioned methods. Later, Dairen transformed it into Shenxiong Wan, keeping it secret. However, he often instructed patients to take over a hundred pills before sleep, followed by Chuanxiong and other medicines, expecting defecation at dawn (wugeng time), with various pathogens expelled. After slight purging, administer medicines to harmonize the diaphragm, ensuring efficacy through bowel movement. Some have one bowel movement every five days, some every three days; mild cases may stop after one or two times, while severe cases require five or six times to heal. This is the subtlety of controlling and releasing, adapting to clinical situations, which cannot be fully explained by words. Although these medicines are harsh and urgent, if the diagnosis is accurate, only experienced physicians with great responsibility would dare to use them. I have personally prepared and used them, finding the effect consistent with expectations, but adjusted according to individual constitution. One should gradually increase the dose following Hejian's method; for robust individuals, follow Dairen's treatment method, yielding miraculous effects.

Dasheng Xunchuan San
Dahuang (roasted), Qianniu (head powder), Yuliren (each 1 liang), Muxiang (3 qian), Mangxiao (3 qian), Gansui (0.5 qian)

Commentary: This is the supreme medicine for eliminating various accumulations. All dampness belongs to Earth; fire and heat can generate damp Earth. Thus, in summer heat, all things are moist; in autumn coolness, dampness returns to dryness. Dampness does not arise spontaneously but results from fire-heat stagnation, preventing the free flow of fluids, leading to stagnation and the generation of water-dampness. Diseases involving dampness mostly originate from heat, and heat often accompanies other pathologies. The *Neijing* states: Knowing the root and branch, acting without interruption is correct. When dampness is above, there is yellow eyes and facial edema; when below, swelling and coldness of thighs and knees; when in the middle, limb fullness, epigastric blockage, flaccidity, and reversal; when remaining in Yang channels, it transforms into qi pathology over time; when remaining in Yin channels, it forms structural changes. Laypeople ignore the *Neijing*'s instruction "attack what remains," sticking instead to tonifying and drying agents, causing increased stagnation and worsened disease. Treatment should target the location of the disease, purging excess and tonifying deficiency, expelling evil and nurturing righteousness, aiming for balance. Furthermore, examining Dairen's treatment methods: for example, if Liver Wood overacts on Spleen Earth, this Earth cannot overcome Wood. The overcoming energy seeks rescue from its offspring; Ji Earth generates Geng Metal, where Geng corresponds to the Large Intestine, and pungent flavors belong to Metal. Therefore, adding large amounts of Shengjiang helps subdue Liver Wood. However, without opening Spleen Earth, it cannot function. Thus, using Zhouche Wan first to clear blocked pathways purges the unconquered element first, followed by mixing Jiangzhi with Chuan San for massive purging, which attacks the conquering element. Dairen always stated that Daoshui Wan must be followed by Yugong San, and Zhouche Wan must be followed by Chuan San. For cold hernia attacks causing acute pain in waist, legs, and hips, purging is also indicated to drain cold water. Laypeople ignorant of treatment principles act rashly, using inappropriate purgatives, ultimately leading to exhaustion. How could they know that Badou can purge cold, Gansui and Yuanhua can purge dampness, and Dahuang and Mangxiao can purge dryness? Such differentiation by channel for medication, combined with dietary therapy, avoids relying on a single formula seeking completeness. Thus, Dairen said: Nourishing life and attacking pathogens are fundamentally different. Today, people use tonics to treat diseases, which naturally fails; this is difficult to explain.