人参（去芦） 白术（炒） 陈皮（去白） 神曲（炒） 泽泻（各五分） 黄 （炙）
苍术（制）
升麻（各一钱） 麦门冬（去心） 当归（酒洗） 黄柏（炒） 甘草（炙，各三分） 五
味子（九粒）
麦
长夏湿热蒸炎，四肢困倦，精神减少，身热气高，烦心便黄，渴而自汗，脉虚者，此方
主之。
暑令行于夏，至长夏则兼湿令矣，故此方兼而治之。暑热蒸炎，表气易泄，而中气者，
又诸气之源，黄 所以实表而固易泄之气；白术、神曲、甘草所以调中而培诸气之原；酷暑
横流，肺金受病，人参、五味子、麦冬，一以补肺，一以收肺，一以清肺，此三物名曰生脉
散，经所谓扶其所不胜也；火盛则水衰，故又以黄柏、泽泻滋其化源，液亡则口渴，故又以
当归、干葛生其胃液；清气不升，升麻可升；浊气不降，二皮可理；苍术之用，为兼长夏之
湿也。
甘草（炙） 干姜（炮） 杏仁（去皮尖） 肉桂（去皮，等分）
夏月引饮过多，脾胃受湿，清浊相干，阴阳气逆，霍乱呕吐者，此方主之。
脾胃者，喜燥而恶湿，喜湿而恶寒，时虽夏月，过于饮冷吞寒，则伤之矣，故令气逆霍
乱而呕吐也。干姜、肉桂，温胃而建中；甘草、杏仁，调脾而理气。此方非治暑，乃治暑月
饮冷受伤之脾胃尔。若非饮冷而致诸疾，则勿执方以治也。
[Qing Shu Yi Qi Tang]
Ren Shen (Ginseng Radix, rhizomes removed) Bai Zhu (Atractylodis Rhizoma, stir-fried) Chen Pi (Citri Reticulatae Pericarpium, white pith removed) Shen Qu (Massa Medicata Fermentata, stir-fried) Ze Xie (Alismatis Rhizoma, each 5 fen) Huang Qi (Astragali Radix, honey-fried)
Cang Zhu (Atractylodis Rhizoma, processed)
Sheng Ma (Cimicifugae Rhizoma, each 1 qian) Mai Men Dong (Ophiopogonis Radix, heart removed) Dang Gui (Angelicae Sinensis Radix, washed with wine) Huang Bo (Phellodendri Cortex, stir-fried) Gan Cao (Licorice Root, honey-fried, each 3 fen) Wu Wei Zi (Schisandrae Fructus, 9 grains)
In the late summer season, when damp-heat steams and blazes, presenting with fatigue and heaviness of the four limbs, reduced spirit and vitality, body heat with rapid breathing, vexation, yellow urine, thirst accompanied by spontaneous sweating, and a deficient pulse, this formula is indicated.
The pathogenic factor of Summerheat prevails in summer; by late summer, it combines with Dampness. Therefore, this formula treats both Summerheat and Dampness simultaneously. When Summerheat steams and blazes, the defensive Qi at the exterior is prone to leakage. Since the Middle Qi (Spleen and Stomach Qi) is the source of all Qi, Huang Qi is used to consolidate the exterior and secure the easily leaked Qi; Bai Zhu, Shen Qu, and Gan Cao are used to regulate the Middle Jiao and cultivate the source of Qi; during severe heat, the Lung Metal is affected. Ren Shen, Wu Wei Zi, and Mai Men Dong respectively tonify the Lung, astringe the Lung, and clear Lung heat. These three herbs constitute Sheng Mai San (Pulse-Generating Powder), as stated in the classics: supporting the element that is overcome (i.e., strengthening Earth to generate Metal); when Fire is excessive, Water becomes deficient, so Huang Bo and Ze Xie are added to nourish the source of transformation; when fluids are lost causing thirst, Dang Gui and Ge Gen (Puerariae Lobatae Radix) are used to generate Stomach fluids; when Clear Qi fails to ascend, Sheng Ma can lift it; when Turbid Qi fails to descend, the barks (Chen Pi and potentially Fu Ling Pi implied by context or standard composition variations, though text says "two skins") can regulate it; Cang Zhu is used to address the Dampness of late summer.
[Da Shun San]
Gan Cao (Licorice Root, honey-fried) Gan Jiang (Zingiberis Rhizoma, roasted) Xing Ren (Armeniacae Semen Amarum, skin and tip removed) Rou Gui (Cinnamomi Cortex, bark removed, equal parts)
In summer months, excessive drinking leads to Dampness affecting the Spleen and Stomach. The Clear and Turbid interfere with each other, Yin and Yang Qi rebel, resulting in Huoluan (cholera-like syndrome with vomiting and diarrhea) and vomiting. This formula is indicated.
The Spleen and Stomach prefer dryness and dislike Dampness; they prefer warmth and dislike Cold. Although it is summer, excessive consumption of cold drinks and icy foods damages them, causing Qi rebellion leading to Huoluan and vomiting. Gan Jiang and Rou Gui warm the Stomach and establish the Middle Jiao; Gan Cao and Xing Ren harmonize the Spleen and regulate Qi. This formula does not treat Summerheat itself, but rather the Spleen and Stomach injured by drinking cold substances during the summer. If the various ailments are not caused by drinking cold, do not rigidly apply this formula for treatment.