治伤寒烧针令其汗，针处被寒核起而赤者，必发奔豚，气从少腹上冲心者。灸其核上各
一壮，与此汤。桂枝汤原方桂加二两。
桂枝加桂（汤）治奔豚，气从少腹上冲心。（奔豚病象如此）太阳药（桂枝汤乃太阳经
药也。）治少阴病，（奔豚病，少阴肾邪上逆也。）病起烧针寒气侵。水邪实由外寒召，重散
外寒便泄阴。（用太阳经药治少阴病者，水邪上逆，实由烧针外召寒入，故仍从表治。惟加
桂二两，不特御寒，且制肾气。又药味重则能达下。凡奔豚病，此方可加减用之。）
治太阳病下之后，因而腹满时痛者，属太阴也。桂枝汤原方芍药加三两。
治太阳病下之后，腹中大实痛者，属阳明也。桂枝加芍药汤内更加大黄二两
桂枝加芍汤和里，（此用阴和阳法）升举阳邪出太阴。病本太阳医误下（误下引邪入于
太阴）因而腹痛此方斟。（虽见太阴证，而太阳之证尚未罢，故仍用桂枝汤，但加芍药三两，
监桂枝深入阴分，升举太阳陷入太阴之邪。）大实痛者阳道实，（腹满时痛，不过伤太阴之气，
大实痛，则邪气结于太阴，而转属阳明之燥实矣。）桂枝汤内大黄临。（名桂枝加大黄汤，此
双解表里法也。大黄入于桂枝汤中，欲破脾实而不伤阴也。大黄非治太阴之药，脾实腹痛，
是肠中燥屎不去，显然太阴转属阳明，故以姜、桂入太阴升阳，分杀太阴结滞，则大黄入脾，
反有理阴之功，俾燥屎去而阳明之内道通，则太阴之经气出注营运，而腹痛减。不因误下而
禁下，见症施治，无不尽然。凡妄下必伤胃气。胃气虚则阳邪袭阴，故转属太阴；胃气实则
两阳相搏，故转属阳明。太阴则满痛不实，阴道虚也；阳明则大实而痛，阳道实也。满而时
痛，下痢之兆；大实而痛，燥屎之征。桂枝加芍药，小试建中之剂；桂枝加大黄，微示调胃
之方。）
治疗伤寒，用烧针强迫发汗，针刺部位受寒出现红肿硬结的，必定会引发奔豚病，表现为气从少腹向上冲撞心脏。在红肿硬结上各灸一壮，并服用此汤（桂枝加桂汤）。即在桂枝汤原方基础上，增加桂枝二两。
桂枝加桂汤治疗奔豚病，症状为气从少腹向上冲撞心脏。（奔豚病的典型象如此）使用太阳经药物（因为桂枝汤是治疗太阳经疾病的方剂），来治疗少阴病。（奔豚病是由于少阴肾邪气上逆所致）疾病起因于烧针导致寒气入侵。水邪实际上是由外寒召唤而来，重用发散外寒的药物便能泄除阴邪。（之所以用太阳经药物治疗少阴病，是因为水邪上逆，确实是由烧针招致外寒侵入体内，所以仍然从表证论治。只是增加了二两桂枝，不仅抵御寒气，而且制约肾气。另外药味加重则能到达下部。凡是奔豚病，此方可以加减使用。）
治疗太阳病，经过攻下法治疗后，出现腹部胀满、时时疼痛的症状，这属于太阴病。在桂枝汤原方基础上，增加芍药三两。
治疗太阳病，经过攻下法治疗后，腹部剧烈实痛的症状，这属于阳明病。在桂枝加芍药汤的基础上，再增加大黄二两，即为桂枝加大黄汤。
桂枝加芍药汤调和里证（这是运用阴和阳的方法），升举陷入太阴的阳邪。疾病本属太阳，因医生误用攻下法（误下导致邪气陷入太阴），因而出现腹痛，此时斟酌使用此方。（虽然出现了太阴证的表象，但太阳表的证候尚未解除，所以仍然使用桂枝汤，只是增加芍药三两，以制约桂枝深入阴分，并将陷入太阴的太阳邪气升举外出。）如果是大实痛，则是阳道实证（腹部胀满时痛，不过是损伤了太阴之气；大实痛，则是邪气结聚在太阴，并转化为阳明的燥实之证）。在桂枝汤中加入大黄。（名为桂枝加大黄汤，这是表里双解的方法。大黄放入桂枝汤中，意在破除脾实的积滞而不伤害阴液。大黄并非治疗太阴病的药物，脾实腹痛，是因为肠中的燥屎不去，显然是太阴病转属阳明，所以用生姜、桂枝进入太阴以升发阳气，分散消除太阴的结滞，这样大黄进入脾经，反而起到调理阴分的作用，使得燥屎排出而阳明的内道通畅，太阴的经气就能出注营运，腹痛随之减轻。不因误下而禁止攻下，根据症状施治，没有不恰当的。凡是妄用攻下法必然损伤胃气。胃气虚则阳邪侵袭阴分，所以转属太阴；胃气实则两阳相搏结，所以转属阳明。太阴病表现为胀满且时痛但不坚硬，这是阴道虚的表现；阳明病表现为大实且痛，这是阳道实的表现。胀满且时痛，是下痢的先兆；大实且痛，是燥屎的特征。桂枝加芍药汤，是小试建中汤的方意；桂枝加大黄汤，是微示调胃承气汤的方义。）
Treats cold damage where burning needles are used to induce sweating, and the needle sites become cold, forming red nodules. This will inevitably trigger Ben Tun (Rushing Pig Disease), characterized by Qi rushing from the lower abdomen up to the heart. Moxibustion should be applied once (one moxa cone) on each nodule, followed by administration of this decoction: Guizhi Jia Gui Tang (Cinnamon Twig Plus Cinnamon Twig Decoction). Start with the original Guizhi Tang formula and add two liang of Guizhi (Ramulus Cinnamomi).
Guizhi Jia Gui Tang treats Ben Tun, where Qi rushes from the lower abdomen up to the heart. (The manifestation of Ben Tun is as described above.) It utilizes Taiyang channel medications (as Guizhi Tang is a formula for Taiyang channel diseases) to treat Shaoyin disease. (Ben Tun arises from the counterflow of Shaoyin Kidney pathogenic factors.) The illness originates from cold invasion induced by burning needles. Water pathogens are actually summoned by external cold; heavily dispersing external cold allows for the drainage of Yin pathogens. (The rationale for using Taiyang channel medications to treat Shaoyin disease is that the counterflow of water pathogens is indeed caused by external cold drawn in via burning needles; thus, treatment still focuses on the exterior. By adding two liang of Guizhi, it not only wards off cold but also restrains Kidney Qi. Furthermore, heavier dosages can reach the lower body. For all cases of Ben Tun, this formula may be modified and used.)
Treats Taiyang disease where, after purgation, abdominal fullness and intermittent pain occur, indicating involvement of the Taiyin channel. Start with the original Guizhi Tang formula and add three liang of Shaoyao (Radix Paeoniae Alba/Rubra).
Treats Taiyang disease where, after purgation, severe abdominal excess pain occurs, indicating involvement of the Yangming channel. In Guizhi Jia Shaoyao Tang (Cinnamon Twig Plus White/Red Peony Root Decoction), add two liang of Dahuang (Radix et Rhizoma Rhei).
Guizhi Jia Shaoyao Tang harmonizes the interior (this employs the method of harmonizing Yin and Yang) and raises the Yang pathogen trapped in the Taiyin channel. The disease originally belonged to Taiyang, but was mistakenly treated with purgation (mistaken purgation draws pathogens into Taiyin), resulting in abdominal pain; this formula is then considered. (Although Taiyin symptoms appear, the Taiyang exterior syndrome has not yet resolved, so Guizhi Tang is still used, but with an addition of three liang of Shaoyao to restrain Guizhi from penetrating too deeply into the Yin aspect and to raise the Taiyang pathogens trapped in Taiyin.) If there is severe excess pain, it indicates an Excess pattern of the Yang channels (abdominal fullness with intermittent pain merely injures Taiyin Qi; severe excess pain implies pathogenic factors knotting in Taiyin and transforming into Yangming dryness-excess). Dahuang is added to Guizhi Tang. (Named Guizhi Jia Dahuang Tang, this is a method of simultaneously resolving the exterior and interior. Placing Dahuang within Guizhi Tang aims to break spleen excess stagnation without injuring Yin. Dahuang is not typically a medicine for treating Taiyin disease; spleen excess abdominal pain is due to undispelled dry feces in the intestines, clearly indicating Taiyin transforming into Yangming. Therefore, Shengjiang (Rhizoma Zingiberis Recens) and Guizhi enter Taiyin to raise Yang and disperse Taiyin knotting. Consequently, when Dahuang enters the Spleen, it paradoxically benefits Yin, allowing dry feces to pass and the Yangming internal pathway to clear, enabling Taiyin meridian Qi to circulate and transport, thereby reducing abdominal pain. One does not forbid purgation simply because of mistaken prior purgation; treatment is based on presenting symptoms. All reckless purgations inevitably damage Stomach Qi. When Stomach Qi is deficient, Yang pathogens invade Yin, leading to transformation into Taiyin; when Stomach Qi is excessive, two Yangs contend, leading to transformation into Yangming. Taiyin presents with fullness and intermittent pain but no hardness, reflecting deficiency of the Yin channels; Yangming presents with severe excess and pain, reflecting excess of the Yang channels. Fullness with intermittent pain is a sign of impending dysentery; severe excess pain is a sign of dry feces. Guizhi Jia Shaoyao Tang offers a mild trial of Jianzhong principles; Guizhi Jia Dahuang Tang subtly demonstrates Tiaowei principles.)