于桂枝汤方内去芍药，加附子一枚，炮去皮，破八片，余根据前法。
太阳病下之，微喘者，表未解故也，桂枝加厚朴杏子汤主之。喘家作桂枝汤加厚朴杏
子佳。
【注】
太阳病，当汗而反下之，下利脉促，喘而汗出不恶寒者，乃邪陷于里，热在阳明，葛
根黄芩黄连汤证也。今太阳病当汗而反下之，不下利而微喘，是邪陷于胸，未入于胃
，表仍未解也。故仍用桂枝汤以解肌表，加厚朴、杏子以降逆定喘也。喘家，谓素有
喘病之人，遇中风而喘者，桂枝汤皆宜用之，加厚朴杏子为佳也。
【集注】
方有执曰：喘者，气逆于上，故呼吸不顺而声息不利也。微者，声息缓，不似大喘之
气急也。以表尚在，不解其表，则喘不可定，故用桂枝解表，加厚朴利气，杏仁下气
，所以为定喘之要药。
喻昌曰：此风邪误下作喘治法之大要。其寒邪误下作喘，当用麻黄、杏仁、石膏、甘
草，即此可推。又曰：微喘表未解，则是表邪因误下上逆，与虚证不同。
程应旌曰：喘之一证，有表有里，不可不辨。下后汗出而喘，其喘必盛，属里热壅逆
火炎故也。下后微喘，汗必不大出，属表邪闭遏气逆故也；仍用桂枝汤解表，内加朴
杏以下逆气。
魏荔彤曰：凡病人素有喘证，每感外邪，势必作喘，故谓之喘家。
在桂枝汤方剂中去掉芍药，加入一枚炮制过的附子（去皮，破成八片），其余按照前面的方法煎服。
太阳病（太阳经受邪所致的病证）经过误用泻下法治疗后，出现轻微气喘的，是因为表证尚未解除，应当用桂枝加厚朴杏子汤主治。素有喘病的人如果患中风而引发气喘，使用桂枝汤并加入厚朴、杏仁效果更佳。
【注解】
太阳病，本应当发汗解表却反而用了泻下法，如果出现腹泻、脉急促、气喘且出汗但不恶寒的情况，这是邪气内陷于里，热邪在阳明经，属于葛根黄芩黄连汤的证候。现在是太阳病本应发汗却反而用了泻下法，没有腹泻而是轻微气喘，这说明邪气内陷于胸中，未进入胃腑，表证仍然没有解除。因此仍使用桂枝汤来解除肌表之邪，加入厚朴和杏仁以降逆平喘。所谓“喘家”，是指素来患有喘病的人，遇到中风而诱发气喘的，都适宜使用桂枝汤，加入厚朴和杏仁更为恰当。
【集注】
方有执说：气喘，是气机逆乱于上，所以呼吸不顺且声音气息不畅。微喘，指声音气息缓慢，不像大喘那样气急。因为表证仍在，如果不解除表证，气喘就无法平息，所以用桂枝汤解表，加入厚朴以理气，杏仁以下气，这些都是定喘的重要药物。
喻昌说：这是风邪误用泻下法导致气喘的治疗大法。如果是寒邪误用泻下法导致气喘，应当使用麻黄、杏仁、石膏、甘草，即小青龙加石膏汤或麻杏石甘汤之类，由此可以类推。他又说：微喘且表证未解，说明是表邪因误下而上逆，这与虚证不同。
程应旌说：气喘这一症状，有表证和里证之分，不可不辨别。泻下后出汗且气喘，这种气喘必然严重，属于里热壅盛、气逆火炎所致。泻下后轻微气喘，出汗必然不多，属于表邪闭阻、气机逆乱所致；仍需用桂枝汤解表，内部加入厚朴和杏仁以降逆气。
Remove Shaoyao (Paeoniae Radix Alba) from Guizhi Tang (Cinnamon Twig Decoction), and follow the previous method for the remainder.
Remove Shaoyao (Paeoniae Radix Alba) from the Guizhi Tang (Cinnamon Twig Decoction) formula, add one Pao Fuzi (Prepared Aconite Root, peeled and broken into eight pieces), and follow the previous method for the remainder.
In Taiyang disease (disease of the Taiyang channel characterized by exterior syndrome), if purgation is mistakenly applied and slight wheezing ensues, it indicates that the exterior pathogen has not yet been resolved; Guizhi Jia Houpo Xingren Tang (Guizhi Decoction with Magnolia Bark and Apricot Kernel) should be administered. For patients with a chronic history of wheezing who develop wheezing upon contracting wind-cold, administering Guizhi Tang (Cinnamon Twig Decoction) supplemented with Houpo (Magnolia Bark) and Xingren (Apricot Kernel) is optimal.
[Annotation]
Taiyang disease (disease of the Taiyang channel) should be treated with sweating methods, but if purgation is mistakenly used, resulting in diarrhea, rapid pulse, wheezing, sweating, and absence of aversion to cold, this indicates the pathogen has sunk inward with heat in the Yangming stage, constituting a Ge Gen Huang Qin Huang Lian Tang (Kudzu, Scutellaria, Coptis, and Phellodendron Decoction) pattern. In the current case, Taiyang disease (disease of the Taiyang channel) was mistakenly purged without causing diarrhea but resulting in slight wheezing; this signifies the pathogen has sunk into the chest without entering the stomach, and the exterior remains unresolved. Therefore, Guizhi Tang (Cinnamon Twig Decoction) is still used to release the muscle layer and exterior, while adding Houpo (Magnolia Bark) and Xingren (Apricot Kernel) to direct rebellious Qi downward and calm wheezing. "Chuanjia" (Wheezing-prone person) refers to individuals with a pre-existing condition of wheezing; when they contract wind-pathogen and wheezing recurs, Guizhi Tang (Cinnamon Twig Decoction) is appropriate, and adding Houpo (Magnolia Bark) and Xingren (Apricot Kernel) is preferable.
[Collected Annotations]
Fang Youzhi stated: Wheezing is caused by rebellious Qi moving upward, leading to difficult breathing and impaired respiration. "Slight" implies slow respiration, unlike the urgency of severe wheezing. Since the exterior pathogen persists, failing to resolve the exterior will not stop the wheezing; thus, Guizhi Tang (Cinnamon Twig Decoction) is used to release the exterior, while Houpo (Magnolia Bark) regulates Qi and Xingren (Apricot Kernel) descends Qi, making them essential herbs for calming wheezing.
Yu Chang stated: This outlines the major principle for treating wheezing caused by mistaken purgation of wind-pathogen. If cold-pathogen is mistakenly purged leading to wheezing, Ephedrae Herba (Mahuang, 麻黄), Xingren (Apricot Kernel), Shigao (Gypsum Fibrosum), and Gancao (Licorice Root) should be used; this can be extrapolated. He further noted that slight wheezing with an unresolved exterior indicates that the exterior pathogen has reversed upward due to mistaken purgation, which differs from deficiency patterns.
Cheng Yingjing stated: The symptom of wheezing involves both exterior and interior aspects that must be distinguished. After purgation, if sweating and wheezing occur, the wheezing is likely severe, belonging to interior heat obstruction and rebellious Qi driven by fire. After purgation, if only slight wheezing occurs with minimal sweating, it belongs to exterior pathogen constriction causing Qi rebellion; Guizhi Tang (Cinnamon Twig Decoction) should still be used to release the exterior, supplemented internally with Houpo (Magnolia Bark) and Xingren (Apricot Kernel) to direct Qi downward.
Wei Litong stated: Whenever a patient with a pre-existing wheezing condition contracts an external pathogen, wheezing is inevitably triggered; hence such individuals are termed "Chuanjia" (Wheezing-prone persons).