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(Yan Shi's) Juanbi Decoction: Treats body restlessness and pain caused by wind-stroke, stiffness and tightness of the neck and back, cold numbness of the hands and feet, heaviness of the waist and knees, and difficulty in movement. (Note: Stiffness and tightness of the neck and back is due to Wind pathogen; heaviness of the waist and knees. Other classifications include: 1. Pianku [Hemiplegia], i.e., paralysis of half the body; 2. Fengfei [Wind Paraplegia], no body pain, inability to control the four limbs; 3. Fengyin [Wind Aphonia], sudden loss of consciousness; 4. Fengbi [Wind Bi], various Bi syndromes resembling Wind diseases.)

Ingredients: Huangqi (Astragali Radix, honey-fried), Danggui (Angelicae Sinensis Radix, wine-washed), Chishao (Paeoniae Radix Rubra, wine-fried), Qianghuo (Notopterygii Rhizoma et Radix), Fangfeng (Saposhnikoviae Radix), Pian Jianghuang (Curcumae Longae Rhizoma, wine-fried), Gancao (Glycyrrhizae Radix et Rhizoma, roasted). Add Shengjiang (Zingiberis Rhizoma Recens) and Dazao (Jujubae Fructus) when decocting.

This formula consists of herbs belonging to the Foot-Taiyang Bladder Meridian and Foot-Jueyin Liver Meridian. Pungent flavor can disperse Cold; Wind can overcome Dampness. Fangfeng and Qianghuo eliminate Dampness and dispel Wind; when Qi flows freely, Blood moves actively, and when Blood moves actively, Wind dissipates. Huangqi and Zhi Gancao tonify Qi to solidify Wei-Qi (Huangqi is inhibited by Fangfeng, but their combined effect is greater); Danggui and Chishao invigorate Blood to harmonize Ying-Blood, while Jianghuang regulates Qi within the Blood, entering the meridians of the hands and feet to expel Cold-Dampness. (*Zhunsheng* states: In cases of Wind-Bi or hemiplegia, there is none that does not arise from the failure of True Qi to circulate freely. Treatment should not rely on mixing Wutou (Aconiti Lateralis Radix Preparata), Fuzi (Aconiti Radix Preparata), Qianghuo, and Duhuo indiscriminately, which depletes Ying and damages Wei, leading to death; such deaths are effectively murders committed by physicians. Instead, one should use Huangqi as the Sovereign herb, Renshen (Ginseng Radix), Danggui, and Baishao (Paeoniae Radix Alba) as Ministers, and Fangfeng, Guizhi (Cinnamomi Ramulus), Gouteng (Uncariae Ramulus cum Uncis), Jingli (Arundinis Spuma), Zhuli (Bambusae Caulis in Taenia Succus), Jiangzhi (Zingiberis Succus), Jiuji (Allii Tuberosi Succus), Gezhi (Puerariae Radix Succus), Lizhi (Pyrri Fructus Succus), and Nairu (Lactis Bovilis) as Assistants and Guides.)

Sanbi Decoction: Treats stagnation of Qi and Blood, spasms and contracture of the hands and feet, and the three types of Bi syndrome caused by Wind, Cold, and Dampness. (*Neijing* states: When Wind, Cold, and Dampness combine to form a Bi syndrome, predominance of Wind results in Xingbi [Wandering Bi]; predominance of Cold results in Tongbi [Painful Bi]; predominance of Dampness results in Zhuobi [Fixed Bi]. Contracting these pathogens in Winter results in Guyi [Bone Bi]; in Spring, Jinbi [Sinew Bi]; in Summer, Maibi [Vessel Bi]; during the late summer/to-yin period, Jiabi [Flesh Bi]; in Autumn, Piabi [Skin Bi]. If Bi affects the bones, the body feels heavy; if it affects vessels, blood coagulates and fails to flow; if it affects sinews, flexion and extension are impaired; if it affects flesh, sensation is lost. If it affects the skin, there is aversion to cold. Abundant pain indicates excess Cold. The "Cold" type arises from deficient Yang and abundant Yin; the "Heat" type arises from abundant Yang and deficient Yin, resulting in Bi-Heat. Profuse sweating and moisture indicate Dampness, arising from deficient Yang and abundant Yin, causing sweat and dampness.)

Ingredients: Renshen (Ginseng Radix), Huangqi (Astragali Radix), Fuling (Poria), Gancao (Glycyrrhizae Radix et Rhizoma), Danggui (Angelicae Sinensis Radix), Chuanxiong (Ligustici Chuanxiong Rhizoma), Baishao (Paeoniae Radix Alba), Shengdihuang (Rehmanniae Radix), Duzhong (Eucommiae Cortex, stir-fried with ginger juice until fibers break), Chuan Niuxi (Achyranthis Bidentatae Radix), Chuan Xuduan (Dipsaci Radix), Guixin (Cinnamomi Cortex), Xixin (Asari Radix et Rhizoma), Qinjiao (Gentianae Macrophyllae Radix), Chuan Duhuo (Angelicae Pubescentis Radix), Fangfeng (Saposhnikoviae Radix). Equal parts. Decoct with Shengjiang (Zingiberis Rhizoma Recens) and Dazao (Jujubae Fructus).

This formula acts on the Foot-Sanyin (Three Yin) meridians. Yu Jiayan stated: This formula uses a group of tonifying herbs including Renshen, Huangqi, and Siwu Tang (Four Substances Decoction), internally adding Fangfeng and Qinjiao to overcome Wind-Dampness, Guixin to overcome Cold, and Xixin and Duhuo to unblock Kidney Qi. For patients suffering from Bi syndrome caused by the invasion of Wind, Cold, and Dampness into a deficient constitution, this formula serves as an appropriate standard. (Wang Ang notes: Various formulas for treating Wind-Bi generally... [text cuts off] herbs.)