治劳疟口渴。
小柴胡汤原方去半夏，加栝蒌根四两。
柴胡去半夏加栝蒌（汤），止渴升清（此方功效如此）劳疟瘳。（疟不离乎少阳，故用柴
胡；劳
“劳疟”，中气虚也。后人用补中益气汤治之，亦效。）
治少阴病，四逆，泄利下重，其人或咳，或悸，或小便不利，或腹中痛者。
柴胡 白芍 枳实 甘草（炙） 等分为末，白饮和服方寸匕。四逆散治少阴枢，（小
柴胡汤
敛阴
同，
盖
之
解
芍药）
”
利一端
治伤寒发热，汗出不解，热结在里，心下痞硬，呕吐而下利，复往来寒热，脉沉
数者。
柴胡（半斤） 半夏（半升） 黄芩 芍药（各三两） 生姜（五两） 枳实（四枚） 大
枣（十二枚
黄二两，若
大柴胡汤芩夏芍，枳实姜枣共煎尝。（此小柴胡、四逆散二方合用者也。除去人参、甘
草者，盖热邪已结在里，不可更实其脾也。前小柴胡汤独治阳枢，故曰“小”；此则阴阳二
枢并
呕（半夏生
黄者，表里兼
用大黄。大黄乃
亦尔，仍有桂枝大
硝，乃合用调胃
解表里法也。）
（张子和《儒门事亲》） 治肌热、蒸热、积热、汗后余热，脉洪实弦数；亦
小柴胡汤去半夏，加当归、白芍、大黄。
柴胡饮子即小柴（胡汤），去夏加黄归芍偕。略施汗下兼攻补，热积三焦疟亦佳。（此方
治三
治疗劳疟引起的口渴。
小柴胡汤原方去掉半夏，加入栝蒌根四两。
柴胡去半夏加栝蒌（汤），能止渴并升发清气（此方的功效如此），使劳疟痊愈。（疟疾不离少阳经，所以使用柴胡；“劳疟”，是指中气虚弱。后人用补中益气汤治疗它，也有效。）
治疗少阴病，出现四肢厥逆、泄泻且伴有肛门重坠感，或者患者有咳嗽、心悸、小便不利、腹中疼痛等症状。
柴胡、白芍、枳实、甘草（炙）等分研为末，用米汤调和，每次服用一方寸匕。四逆散治疗少阴病的枢机不利（与小柴胡汤相同，因为小柴胡汤具有敛阴和解的作用）。
治疗伤寒发热，出汗后热势未解，热邪结聚在体内，心下部位痞塞硬满，呕吐且伴有腹泻，又出现寒热往来，脉象沉数的情况。
柴胡（半斤）、半夏（半升）、黄芩、芍药（各三两）、生姜（五两）、枳实（四枚）、大枣（十二枚）、大黄（二两，若……）。大柴胡汤由黄芩、半夏、芍药、枳实、生姜、大枣共同煎煮而成。（这是小柴胡汤和四逆散两个方剂合用的结果。除去人参、甘草的原因，是因为热邪已经结聚在里，不能再补益脾气了。以前的小柴胡汤只治疗阳枢，所以称为“小”；这里则是阴阳两个枢机并用，如果有呕吐症状，半夏要用生的；如果有热象，要加入大黄。大黄是用来……也是同理，仍有桂枝和大黄硝石的意思，是合用了调胃承气汤的方法以解除表里之邪。）
（张子和《儒门事亲》） 治疗肌肉发热、蒸蒸发热、积热、出汗后的余热，脉象洪大、坚实、弦急或数；也适用。
小柴胡汤去掉半夏，加入当归、白芍、大黄。
柴胡饮子即小柴胡汤，去掉半夏，加入大黄、当归、白芍共同使用。稍微施以汗法、下法兼攻补兼施，对于三焦的热积和疟疾效果也很好。（此方治疗三焦……）
Treats thirst caused by laborious malaria (Laonu).
The original formula of Xiaochaihu Tang (Minor Bupleurum Decoction) has Banxia (Pinelliae Rhizoma) removed, and Gualougen (Trichosanthis Radix) four liang added.
Chaihu Qu Banxia Jia Gualou Tang (Bupleurum Decoction without Pinellia plus Trichosanthes Root) stops thirst and raises clear Yang (the efficacy of this formula is as such), curing laborious malaria. (Malaria is associated with the Shaoyang channel, hence Chaihu is used; "Laborious Malaria" refers to deficiency of Middle Qi. Later practitioners treated it with Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction), which is also effective.)
Treats Shaoyin disease presenting with cold extremities (Sini), diarrhea with a sensation of heaviness in the anus, or where the patient may have cough, palpitations, difficulty in urination, or abdominal pain.
Chaihu, Baishao (Paeoniae Radix Alba), Zhishi (Aurantii Fructus Immaturus), and Gancao (Glycyrrhizae Radix et Rhizoma, prepared) are ground into powder in equal proportions. Take one fangcunbi (a square-inch measure) mixed with rice water. Sini San (Four Reversals Powder) treats the pivot dysfunction of Shaoyin (similar to Xiaochaihu Tang, as Xiaochaihu Tang has the function of nourishing Yin and harmonizing).
Treats Shanghan (Cold Damage) fever where sweating does not resolve the heat, heat is bound internally causing fullness and hardness in the epigastrium (Xinxiapiying), accompanied by vomiting and diarrhea, alternating chills and fever, and a deep, rapid pulse.
Chaihu (half jin), Banxia (half sheng), Huangqin (Scutellariae Radix), Baishao (each three liang), Shengjiang (Zingiberis Rhizoma Recens, five liang), Zhishi (four pieces), Dazao (Jujubae Fructus, twelve pieces), and Dahuang (Rhei Radix et Rhizoma, two liang...). Dahuang Tang (Major Bupleurum Decoction) consists of Huangqin, Banxia, Baishao, Zhishi, Shengjiang, and Dazao decocted together. (This is a combination of Xiaochaihu Tang and Sini San. Ginseng and Gancao are removed because the pathogenic heat has already bound internally, and tonifying the Spleen further would be inappropriate. The former Xiaochaihu Tang treats only the Yang pivot, hence called "Minor"; here, both Yin and Yang pivots are addressed. If there is vomiting, raw Banxia should be used; if there is heat, Dahuang should be added. Dahuang serves to... similarly, there is still the implication of Guizhi (Cinnamon Twig) and Damian (Mirabilite), combining methods similar to Tiaowei Chengqi Tang to resolve exterior and interior pathogens.)
(Zhang Zihe's *Rumen Shiqin*) Treats muscle heat, steaming heat, accumulated heat, and residual heat after sweating, with a pulse that is surging, firm, wiry, or rapid; also applicable.
Xiaochaihu Tang removes Banxia and adds Danggui (Angelicae Sinensis Radix), Baishao, and Dahuang.
Chaihu Yinzi (Bupleurum Drink) is essentially Xiaochaihu Tang, with Banxia removed and Huangqin, Danggui, and Baishao added. Applying slight diaphoresis and purgation along with attacking and tonifying simultaneously yields good results for accumulated heat in the Triple Burner and malaria. (This formula treats the Triple Burner...)