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Treats coldness of the hands and feet, with a fine pulse that is nearly imperceptible. This formula is indicated for such cases.
Danggui (Radix Angelicae Sinensis) (3 liang), Guizhi (Ramulus Cinnamomi) (3 liang), Shaoyao (Radix Paeoniae Alba) (3 liang), Xixin (Herba Asari) (3 liang), Dazao (Fructus Jujubae) (25 pieces), Gancao (Radix Glycyrrhizae Preparata) (2 liang).

Take the above seven ingredients, add eight sheng of water, decoct to obtain three sheng of liquid, remove the dregs, and take one sheng warm each time, three times a day.

Danggui Sini Tang plus Wuzhuyu and Shengjiang Decoction: Treats coldness of the hands and feet, with a fine pulse that is nearly imperceptible, in patients who have chronic cold within the interior. Add Shengjiang (Fresh Rhizoma Zingiberis) (0.5 jin) and Wuzhuyu (Fructus Evodiae) (2 sheng) to the previous formula. Take the above ingredients, add six sheng of water and six sheng of clear wine, decoct to obtain five sheng of liquid, and divide into five warm doses.

Song says: Three liang each of Xixin, Danggui, Guizhi, and Shaoyang circulate; twenty-five Dazao are needed to revive the pulse. Two liang each of Gancao and Tongcao can reverse coldness; if cold penetrates deeply, add Wuzhuyu (2 sheng) and Shengjiang (0.5 jin), cooked with wine (6 sheng).

Luo Dongyi stated: Jueyin is the end of the three Yin meridians. When Yin reaches its extreme, Yang begins to generate. If invaded by cold pathogenic factors, the Qi of Yin and Yang fails to connect smoothly, resulting in a faint pulse and cold extremities. However, within the Jueyin organ (Liver), Ministerial Fire (Xianghuo) circulates. Although the meridians are affected by cold, the organs do not immediately become cold. Therefore, those who initially experience cold extremities will subsequently develop fever. Thus, at the onset of Cold Damage (Shanghan), when cold extremities and a fine, nearly imperceptible pulse are observed, one should not hastily diagnose it as pure cold and use hot herbs like Ganjiang (Dried Rhizoma Zingiberis) and Fuzi (Radix Aconiti Lateralis Preparata). This formula takes Guizhi Tang as the base, with Danggui as the sovereign herb, because Jueyin governs the Liver, and the Liver is the repository of blood. Assisted by Xixin, which has an extremely pungent flavor, it can penetrate the three Yin meridians, warming the exterior meridians and interior organs. Tongcao (Medulla Tetrapanacis) has an extremely unblocking nature, good at opening joints, connecting internal orifices and external Ying (Nutritive) Qi. Ginger is omitted to prevent excessive dispersal of the exterior. The amount of Dazao is doubled, following the principle of Jianzhong (Establishing the Middle) with Yitang (Maltose). Twenty-five pieces are used to symbolize the number "five times five." The will of the Liver fears tension, and the spirit of the Liver desires dispersion. Combining pungent and sweet flavors allows the will to be satisfied and the spirit to be joyful. There is no case where the spirit and will of Jueyin are satisfied and joyful, yet cold extremities persist; the treatment differs from that of Taiyang and Shaoyang. If the patient has chronic cold within, only pungent-warm substances can treat it concurrently. Therefore, add the pungent-hot Wuzhuyu and Shengjiang, and decoct with wine to assist Xixin in directly penetrating the Jueyin organ, rapidly scattering cold from both interior and exterior. This is another method for rescuing Jueyin from simultaneous cold invasion of the interior and exterior.