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Treats Shanghan (Cold Damage) accompanied by fever. There is fullness in the lower abdomen. Normally, urination should be difficult. Now that urination is actually free, it indicates the presence of blood stasis (accumulation of blood). It should be treated with purgation.

*Sheng Mei* (20 pieces, wings and feet removed, stir-fried), *Shui Zhi* (20 pieces, stir-fried), *Tao Ren* (35 pieces), *Da Huang* (3 liang).

The above four ingredients are pounded into powder, divided into four pills. Boil one pill in one sheng of water until reduced to seven he. Take the decoction. Do not leave any residue. At this time, blood stasis should be discharged. If it is not discharged,

Song says: Thirty-five Tao Ren and three liang Da Huang. Sheng Mei and Shui Zhi, twenty each, pay attention to detail. Pounded into four pills, boil with one sheng of water. Fever, long urine stream, and abdominal fullness are typical indications.

Chen Xiuyuan said: The pulse for Di Dang Tang/Wan syndrome is slightly fine on superficial palpation and knotted on deep palpation. "Slightly and deep" does not mean deep and faint; hence, "deep and knotted" is used to clarify. The spontaneous urination in Di Dang syndrome is not due to failure of Bladder Qi transformation, but because of stagnant blood in the Lower Jiao (Lower Burner) failing to circulate. Because this formula is difficult to use yet indispensable, its meaning must be reiterated. However, this is the common diagnostic method for both Di Dang Tang and Di Dang Wan syndromes. The Master established the method for Di Dang Wan, focusing on the two characters "you re" (having heat). Heat is stagnant internally yet steaming externally, causing lower abdominal fullness. Urination should be obstructed but is instead free. The condition is severe, so treatment cannot be too abrupt. Thus, the decoction is changed into a pill to harmonize the medicinal properties and allow them to reach the disease site slowly. "Do not leave residue" means taking the medicine including the dregs, without leaving any behind, so that a small amount can overcome a large amount, waiting for the discharge of blood stasis, eliminating the disease without injuring the healthy Qi.

Treats Jie Xiong (Chest Binding) syndrome. The neck is also stiff, resembling Rou Ji (Soft Spasm). Purging will bring harmony; this formula is indicated.

*Da Huang* (8 liang), *Ting Li Zi* (0.5 sheng, stir-fried), *Xing Ren* (0.5 sheng, skin and tips removed, stir-fried until black), *Mang Xiao* (0.5 sheng).

The above four ingredients: Pound and sieve two ingredients first. Then add Xing Ren and Mang Xiao, grind together until paste-like, and mix with the powder. Take one piece the size of a bullet. Separately pound Gan Sui powder to one qian bi.

Administer according to standard methods.

Song says: The method of Da Xian Xiong Wan is superior. Ting Li Zi, Xing Ren, and Mang Xiao, half a sheng each, are well-matched. Remember the neck stiffness resembling soft spasm. Eight liang of Da Huang is taken to rapidly eliminate the pathogen.

Wei noted: The Taiyang (Greater Yang) meridian ascends along the head and neck. Taiyang Qi emerges internally from the chest and diaphragm and reaches externally to the skin and hair. Its treatment method should ideally resolve through sweating. Now [the condition has] formed... [Text fragment]. Why is honey added to the pill? To prevent the harsh medicines from descending too quickly, and also to protect the stomach and intestines from toxic drugs.