治太阳病。若形如疟。日再发。汗出必解。
桂枝（一两十七铢） 芍药（一两六铢） 麻黄（十六铢） 生姜（一两六铢） 杏仁
（十
上七味。以水五升。先煮麻黄一二沸。去上沫。内诸药。煮取二升。去渣。温服一升。
日再
歌曰 一两六铢芍与姜。麻铢十六杏同行。桂枝一两铢十七。草两二铢五枣匡。
蔚按。服桂枝汤宜令微似汗。若大汗出脉洪大。为汗之太骤。表解而肌未解也。仍宜与
桂枝
以解表邪。
治发汗后热不退。大烦渴饮水者。
知母（六两） 石膏（一斤 碎。绵裹。） 甘草（二两 炙） 粳米（六合） 人参
（三两）
上五味。以水一斗。煮米熟汤成。去滓。温服一升。日三服。
歌曰 服桂渴烦大汗倾。液亡肌腠涸阳明。膏斤知六参三两。二草六粳米熟成。
蔚按。上节言服桂枝大汗出而邪反不能净。宜仍服桂枝以发汗之。或桂枝二麻黄一汤合
肌表
于心。故大烦。阳明为燥土。故大渴。阳气盛。故脉洪大。主以石膏之寒以清肺。知母之苦
以滋水。甘草粳米之甘。人参之补。取气寒补水以制火。味甘补土而生金。金者水之源也。
治太阳病发热恶寒。热多寒少。脉微弱者。此无阳也。不可发汗。此汤主
桂枝（十八铢） 芍药（十八铢） 麻黄（十八铢） 甘草（十八铢） 大枣（四枚） 生
上七味。 咀。以水五升煮麻黄一二沸。去上沫。纳诸药。煎取二升。去滓。温服一升。
本
歌曰 桂芍麻甘十八铢。生姜一两二铢俱。膏铢廿四四枚枣。要识无阳旨各殊。
论中无阳二字。言阳气陷于阴中。既无表阳之证。不可发其表汗。故用越婢汤。方中石
膏质
蔚按。本方分两甚轻。大抵为邪气轻浅者设也。太阳以阳为主。所云热多寒少。是阳气
欲胜
太盛。不可用麻
血而言。有指元阴元阳而言。有指腑脏而言。有指表里而言。有指寒热而言。有指邪正而言。
非细心如发者
难也。
Treats Taiyang disease (disease of the Taiyang channel). If the symptoms resemble malaria, occurring twice a day, and relief follows sweating.
Guizhi Tang (Cinnamon Twig Decoction) [Note: The text lists ingredients for Guizhi Er Mahuang Yi Tang but names Guizhi in context of previous/next, here strictly translating ingredients listed]: Guizhi (Cinnamon Twig, 1 liang 17 zhu), Shaoyao (Peony Root, 1 liang 6 zhu), Mahuang (Ephedra Herb, 16 zhu), Shengjiang (Fresh Ginger, 1 liang 6 zhu), Xingren (Apricot Seed, 10 pieces), Dazao (Jujube, 12 pieces, split), Gancao (Licorice Root, 2 liang, honey-fried).
Take the above seven herbs. Add five sheng of water. First boil Mahuang for one or two boils. Remove the foam on the surface. Add the remaining herbs. Boil to obtain two sheng. Remove the dregs. Take one sheng warm. Twice a day.
The song says: Shaoyao and Shengjiang at 1 liang 6 zhu; Mahuang 16 zhu with Xingren go together. Guizhi is 1 liang 17 zhu; Gancao is 2 liang 2 zhu; Dazao assists.
Wei's commentary: When taking Guizhi Tang, slight perspiration should be desired. If profuse sweating occurs with a surging pulse, it is because sweating was too abrupt; the exterior is resolved but the muscle layer remains unresolved. It is still appropriate to administer
Guizhi Tang
to resolve the exterior pathogen.
Treats cases where heat persists after sweating, accompanied by severe irritability and thirst for drinking water.
Zhimu (Anemarrhena Rhizome, 6 liang), Shigao (Gypsum Fibrosum, 1 jin, crushed, wrapped in cotton), Gancao (Licorice Root, 2 liang, honey-fried), Jingmi (Rice, 6 he), Renshen (Ginseng Root, 3 liang).
Take the above five herbs. Add ten dou of water. Boil until the rice is cooked and the decoction is ready. Remove the dregs. Take one sheng warm. Three times a day.
The song says: After taking Guizhi Tang, irritability, thirst, and profuse sweating occur. Fluids are lost, muscle and pores dry up, involving the Yangming channel. Gypsum 1 jin, Zhimu 6 liang, Renshen 3 liang, Gancao 2 liang, Jingmi 6 he, boiled until rice is cooked.
Wei's commentary: The previous section discussed that after profuse sweating from Guizhi Tang, pathogens were not completely cleared, so it was appropriate to continue taking Guizhi Tang to induce sweating, or combine with Guizhi Er Mahuang Yi Tang to address the
muscle and exterior
pathogens. Because pathogens constrain the heart, there is severe irritability. Yangming belongs to dry earth, hence severe thirst. Yang qi is abundant, hence a surging pulse. The main treatment uses the cold nature of Shigao to clear Lung heat, and the bitter taste of Zhimu
to nourish Kidney water. The sweet taste of Gancao and Jingmi, combined with the tonifying effect of Renshen, utilizes cold qi to supplement water to control fire, and sweet taste to tonify Spleen earth to generate Lung metal. Metal is the source of water.
Treats Taiyang disease with fever and aversion to cold, where heat predominates over cold, and the pulse is faint. This indicates "No Yang." Sweating is contraindicated. This decoction is indicated.
Guizhi (Cinnamon Twig, 18 zhu), Shaoyao (Peony Root, 18 zhu), Mahuang (Ephedra Herb, 18 zhu), Gancao (Licorice Root, 18 zhu), Dazao (Jujube, 4 pieces), Shengjiang (Fresh Ginger, 1 liang 2 zhu), Shigao (Gypsum Fibrosum, 24 zhu).
Take the above seven herbs. Chop them. Add five sheng of water. Boil Mahuang for one or two boils. Remove the foam on the surface. Add the other herbs. Decoct to obtain two sheng. Remove the dregs. Take one sheng warm.
This formula
The song says: Guizhi, Shaoyao, Mahuang, and Gancao are each 18 zhu; Shengjiang is 1 liang 2 zhu. Shigao is 24 zhu, Dazao is four pieces. Understand that the meaning of "No Yang" varies.
In the Treatise on Cold Damage, the term "No Yang" refers to Yang qi sinking into Yin. Since there are no signs of Exterior Yang, exterior-releasing sweating is contraindicated. Therefore, Yebip Tang is used. In this formula, Shigao has a texture
Wei's commentary: The dosages in this formula are very light, generally intended for patients with mild pathogens. The Taiyang channel is governed by Yang. The description "heat predominates over cold" implies Yang qi desires to overcome the pathogen but is not yet excessively strong; thus, Mahuang should not be used to induce
profuse sweating. Regarding the term "No Yang," some refer to Yuan Yin and Yuan Yang (Primordial Yin and Primordial Yang), some to Zang-Fu organs, some to Interior-Exterior, some to Cold-Heat, and some to Pathogenic-Righteous factors.
Only those with meticulous attention to detail
can comprehend it.