栀子汤原方 加甘草二两（炙） 上三味，以水四升，先煮栀子、甘草，取二升半；内豉，煮取升半，分
二服，温进一服，得吐便止。
栀子汤原方加生姜五两。先煮栀子、生姜，余俱如前法。得吐者，止后服。
凡用栀子汤，病患旧微溏者，不可与服之。此服栀子汤之戒。
按∶栀子清越上焦之火，与肠胃亦无大害，微溏者，即不可服，未知何义？想因大肠之气滑脱者，肺气
不宜更浅也。
若少气者，栀子甘草豉汤主之。甘草能补中气。若呕者，栀子生姜豉汤主之。此二条言凡遇当用栀子汤
之病、见此二症，则加此二味也。
按∶无物为呕，有物为吐。欲止其呕，反令其吐。吐之而呕反止，真匪夷所思也。
栀子（十四枚，擘） 干姜（二两） 上二味，以水三升半，煮取一升半，去渣，分二服，温进一服，得吐者，
止后服。
伤寒，医以丸药大下之，下未必误，以丸药大下则误矣。身热不去，外有微邪。微烦者，下后而烦，
即虚烦也。栀子干姜汤主之，下后故用干姜。
栀子（十四枚，擘） 浓朴（四两，姜灸） 枳实（四枚，水浸去稂炒）煮服法同前。
伤寒，下后心烦，即微烦。腹满，卧起不安者，烦而加之腹满，则卧起俱不宁矣。浓朴枳实，以治腹满
也。栀子浓朴汤主之。
栀子汤原方，加入炙甘草二两。以上三味药，用水四升，先煮栀子和甘草，取药液二升半；再加入豆豉，继续煎煮至一升半，分两次服用，温服一次，如果引起呕吐就停止后续服药。
栀子汤原方，加入生姜五两。先煮栀子和生姜，其余步骤都按照前面的方法。如果引起呕吐，就停止后续服药。
凡是使用栀子汤的病人，如果平时大便稀溏的，不可以服用此汤。这是服用栀子汤的注意事项。
按语：栀子能清泄上焦的火邪，对肠胃也没有太大伤害，但大便微溏者却不可服用，不知这是什么道理？猜想是因为大肠之气滑脱不固，肺气不宜再进一步宣散（导致气更虚）的缘故。
如果有少气症状的，用栀子甘草豉汤主治。甘草能够补益中气。如果有呕吐症状的，用栀子生姜豉汤主治。这两条说明凡是遇到应当使用栀子汤的病证，出现这两种症状之一，就分别加入这两味药。
按语：没有东西吐出叫呕，有东西吐出叫吐。想要止住呕吐，反而让它吐出来。吐完之后呕吐反而停止了，真是令人难以想象。
栀子（十四枚，掰开） 干姜（二两） 以上两味药，用水三升半，煎煮取药液一升半，去渣滓，分两次服用，温服一次，如果引起呕吐，就停止后续服药。
伤寒病，医生用丸药猛烈攻下，攻下未必是错误，但用丸药猛烈攻下就是错误的了。身体发热不退，体表还有轻微的外邪。心中微微烦闷，是攻下之后产生的烦闷，也就是虚烦。用栀子干姜汤主治，因为经过攻下，所以使用干姜。
栀子（十四枚，掰开） 厚朴（四两，姜汁炙） 枳实（四枚，水浸后去掉粗皮炒制） 煎煮服用方法同前。
伤寒病，攻下之后心烦，即表现为微烦。腹部胀满，躺卧坐起都不安宁的，既有烦闷又加上腹部胀满，那么躺卧和坐起都不能安宁。厚朴、枳实用来治疗腹部胀满。用栀子厚朴汤主治。
Original Zhi Zi Tang (Gardenia Decoction), add two liang of Zhi Gancao (Honey-fried Licorice Root, *Glycyrrhizae Radix et Rhizoma*). The above three ingredients are boiled in four sheng of water. First, boil Zizi (Fructus Gardeniae) and Gancao until half a sheng is reduced; then add Chi Xiao Dou (Prepared Soybean, *Sojae Semen Praeparatum*) and boil until one and a half sheng remains. Divide into two doses. Take one dose warm. If vomiting occurs, discontinue further administration.
Original Zhi Zi Tang (Gardenia Decoction), add five liang of Shengjiang (Fresh Ginger Rhizome, *Zingiberis Rhizoma Recens*). First boil Zizi (Fructus Gardeniae) and Shengjiang (Fresh Ginger Rhizome); the remaining steps follow the previous method. If vomiting occurs, discontinue further administration.
For all cases using Zhi Zi Tang (Gardenia Decoction), if the patient has a history of loose stools, it should not be administered. This serves as a warning for the use of Zhi Zi Tang (Gardenia Decoction).
Commentary: Zizi (Fructus Gardeniae) clears fire from the Upper Jiao (Upper Burner) and does not significantly harm the intestines and stomach. Yet, it is contraindicated in those with slight loose stools; the rationale is unclear. It is hypothesized that this is because the Qi of the Large Intestine is slipping and unconsolidated, and the Lung Qi should not be dispersed further, which might exacerbate the deficiency.
If there is shortness of breath (Shao Qi), Zhi Zi Gan Cao Chi Tang (Gardenia, Licorice, and Prepared Soybean Decoction) is the primary formula. Gancao (Licorice Root) can tonify Middle Qi (Spleen/Stomach Qi). If there is vomiting, Zhi Zi Sheng Jiang Chi Tang (Gardenia, Fresh Ginger, and Prepared Soybean Decoction) is the primary formula. These two clauses indicate that for any condition requiring Zhi Zi Tang (Gardenia Decoction), if either of these two symptoms appears, these two specific herbs are added accordingly.
Commentary: "Ou" refers to the sensation of nausea or retching without expulsion, while "Tu" refers to actual vomiting with expulsion. To stop vomiting, one induces vomiting instead. After vomiting, the nausea ceases, which is truly beyond ordinary comprehension.
Zizi (Fructus Gardeniae) (14 fruits, broken open) Ganjiang (Dried Ginger Rhizome, *Zingiberis Rhizoma*) (two liang). The above two ingredients are boiled in three and a half sheng of water until one and a half sheng remains. Strain the dregs and divide into two doses. Take one dose warm. If vomiting occurs, discontinue further administration.
In Shaoyang disease (Taiyang Cold Damage), the physician used pill medicines for severe purgation. Purgation itself may not have been erroneous, but using pill medicines for severe purgation was a mistake. The body heat persists, indicating slight exterior pathogenic factors remain. Slight vexation indicates post-purgation vexation, which is empty vexation (Xu Fan). Zhi Zi Gan Jiang Tang (Gardenia and Dried Ginger Decoction) is the primary formula; Ganjiang (Dried Ginger Rhizome) is used because the bowels have been purged.
Zizi (Fructus Gardeniae) (14 fruits, broken open) Houpo (Magnolia Bark, *Magnoliae Officinalis Cortex*) (four liang, processed with ginger juice) Zhishi (Immature Bitter Orange Fruit, *Citri Reticulatae Viridis Fructus*) (four pieces, soaked in water, outer skin removed, stir-fried). The decoction and administration methods are the same as above.
In Taiyang Cold Damage, after purgation, there is vexation, manifesting as slight vexation. Abdominal fullness, with restlessness in lying down and sitting up: when vexation is combined with abdominal fullness, both lying down and sitting up become uncomfortable. Houpo (Magnolia Bark) and Zhishi (Immature Bitter Orange Fruit) are used to treat abdominal fullness. Zhi Zi Hou Po Tang (Gardenia, Magnolia Bark, and Immature Bitter Orange Decoction) is the primary formula.