（东垣）
治长夏湿热炎蒸，四肢困倦，精神减少，胸满气促，身热心烦，口渴恶食，自汗身重，
肢体疼痛，小便赤涩，大便溏黄而脉虚者（暑湿蒸人，脾土受伤，故肢倦便溏；暑热伤肺，
故气促
湿盛
黄 人参 白术（炒） 苍术 神曲（炒） 青皮（麸炒） 陈皮（留白） 甘草（炙）
麦冬
此手足太阴、足阳明药也。热伤气，参 益气而固表；湿伤脾，二术燥湿而强脾；火盛
则金病而水衰，故用麦冬、五味以保肺而生津（肺为水之上源，火旺克金，则金不能生水，
麦味合人参生脉生津）；用黄柏以泻热而滋水；青皮平肝而破滞；当归养血而和阴；神曲化
食而消积；升葛解肌热而升清（清气上升，能生津液。又风能胜湿；泽泻泻湿热而降浊；陈
皮理气；甘草和中；合之以益气强脾，除湿清热也李东垣曰∶脾虚肺气先绝，故用黄 闭腠
理，止汗益气；脾胃既虚，阴火伤其生发之气，营卫大亏，血虚以人参补之，阳旺自能生阴
血也；更加当归和血，又加黄柏以救肾水，盖甘寒泻火，火灭则心气得平而安也；心火乘脾，
故用炙草泻火而补脾，少用恐滋满也，中满者去之，若腹中急痛急缩者，却宜多用；咳者去
人参，为清浊相干，故以陈皮理之；长夏湿胜，故加二术、泽泻，上下分消其湿热也；湿胜
则食不化，炒曲辛甘，青皮辛温，消食快气；五味、麦冬、人参酸甘微寒，泻火热而益肺气，
救庚金也。《医贯》曰∶有伤暑吐衄者，暑伤心，心虚不能生血，不宜过用寒凉以泻心，宜
清暑益气加丹皮、生地、犀角之类。盖暑伤心，亦伤气，其脉必虚，以参 补气，使能摄血，
斯无
本方除青皮、泽泻、干葛，名黄 人参汤（东垣）∶治暑伤元气，长夏倦怠，胸满自汗，
时作头痛（时痛时止，为内伤证）。本方除白术、青皮、麦冬、五味，加茯苓、猪苓、柴胡、
羌活、防
（李东垣）
治疗长夏季节湿热蒸腾，四肢困倦乏力，精神萎靡减少，胸中胀满气短急促，身体发热心烦，口渴且厌恶饮食，自汗出且身体沉重，肢体疼痛，小便赤黄涩痛，大便溏泄色黄而脉象虚弱的病证。（这是因为暑湿之气熏蒸人体，损伤脾土，所以出现四肢倦怠、大便溏泄；暑热之邪损伤肺脏，所以出现气短急促。）
药物组成：苍术、人参、白术（炒制）、苍术、神曲（炒制）、青皮（麸炒）、陈皮（保留白色内层）、甘草（炙烤）、麦冬。
这是属于手太阴肺经、足太阴脾经和足阳明胃经的药物组合。热邪耗伤元气，用人参益气并固护肌表；湿邪损伤脾脏，用苍术和白术燥湿并强健脾气；火气过盛则导致肺金受损而肾水衰弱，所以使用麦冬、五味子来保肺并滋生津液（肺为水之上源，火旺克制肺金，则肺金不能生肾水，麦冬与五味子配合人参可生脉生津）；使用黄柏来泻热并滋补肾水；青皮平抑肝气并破除气滞；当归养血并调和阴血；神曲化解食积并消除积滞；升麻和葛根解除肌肉层面的热邪并提升清气（清气上升，能够滋生津液。另外风能胜湿；泽泻泻除湿热并降浊气；陈皮调理气机；甘草调和脾胃；合用这些药物以益气强脾，除湿清热）。
李东垣说：脾虚则肺气先绝，所以使用黄芪闭合腠理，止汗益气；脾胃既然虚弱，阴火会损伤生发之气，导致营卫严重亏损，血虚则用人参补益，阳气旺盛自然能生成阴血；再加上当归调和血液，又加入黄柏以救肾水，因为甘寒之药可以泻火，火灭则心气得以平和安宁；心火乘袭脾土，所以使用炙甘草泻火并补脾，用量少恐怕会导致脘腹胀满，如果中焦胀满则去掉它，如果腹中拘急疼痛或收缩者，却适宜多用；咳嗽者去掉人参，因为清浊之气相互干扰，所以用陈皮来调理；长夏季节湿气偏胜，所以加入苍术、白术、泽泻，上下分消其湿热；湿气偏胜则食物不消化，炒神曲味辛甘，青皮味辛温，可消食快气；五味子、麦冬、人参味酸甘微寒，可泻火热并补益肺气，拯救庚金（肺）。
《医贯》说：有因伤暑导致呕吐、鼻衄的，是暑热伤心，心虚不能生血，不宜过度使用寒凉药物来泻心火，宜在清暑益气汤中加入牡丹皮、生地、犀角之类的药物。因为暑热既伤心也伤气，其脉象必然虚弱，用人参补气，使气能摄血，这样就不会出血。
本方除去青皮、泽泻、干葛，名为黄芪人参汤（李东垣）：治疗暑热损伤元气，长夏季节倦怠，胸中胀满自汗，时常发作头痛（时痛时止，属于内伤证候）。本方除去白术、青皮、麦冬、五味子，加入茯苓、猪苓、柴胡、羌活、防风……
(Dongyuan)
Treats conditions in the late summer season where damp-heat steams and roasts, causing fatigue and heaviness in the four limbs, reduced spirit and vitality, chest fullness and shortness of breath, feverish body with irritability, thirst with aversion to food, spontaneous sweating with bodily heaviness, pain in the limbs, dark and scanty urine, loose yellow stools, and a deficient pulse. (This is because summer-dampness steams into the person, injuring Spleen Earth, hence limb fatigue and loose stools; summer-heat injures the Lung, hence shortness of breath.)
Ingredients: Cangzhu (Atractylodis Rhizoma), Renshen (Ginseng Radix et Rhizoma), Baizhu (Atractylodis Macrocephalae Rhizoma, stir-fried), Cangzhu (Atractylodis Rhizoma), Shenqu (Massa Medicata Fermentata, stir-fried), Qingpi (Citri Reticulatae Pericarpium Viride, bran-fried), Chenpi (Citri Reticulatae Pericarpium, white pith retained), Gancao (Glycyrrhizae Radix et Rhizoma, honey-fried), Maidong (Ophiopogonis Radix).
These are herbs belonging to the Hand-Taiyin Lung Meridian, Foot-Taiyin Spleen Meridian, and Foot-Yangming Stomach Meridian. Heat injures Qi; Renshen tonifies Qi and secures the exterior; Dampness injures the Spleen; Ershu (Baizhu and Cangzhu) dries dampness and strengthens the Spleen; Excessive Fire damages Metal (Lung) and depletes Water (Kidney), therefore Maidong and Wuweizi are used to protect the Lung and generate fluids (The Lung is the upper source of water; when Fire overacts on Metal, Metal cannot generate Water; Maidong combined with Renshen and Wuweizi generates the Mai Pulse and fluids); Huangbai (Phellodendri Cortex) is used to drain heat and nourish Water; Qingpi regulates the Liver and breaks stagnation; Danggui (Angelicae Sinensis Radix) nourishes Blood and harmonizes Yin; Shenqu transforms food and eliminates accumulation; Shengma (Cimicifugae Rhizoma) and Gegen (Puerariae Lobatae Radix) resolve muscle-layer heat and raise clear Yang (When clear Yang rises, it can generate fluids. Furthermore, Wind can overcome Dampness; Zexie (Alismatis Rhizoma) drains damp-heat and descends turbidity; Chenpi regulates Qi; Gancao harmonizes the Middle Jiao; together they tonify Qi and strengthen the Spleen, dispel dampness and clear heat).
Li Dongyuan said: When Spleen deficiency occurs, Lung Qi is first severed; thus Huangqi (Astragali Radix) is used to close the cou li (pores), stop sweating, and tonify Qi; since the Spleen and Stomach are deficient, Yin Fire injures the generating Qi, leading to a great deficit of Ying and Wei (Nutritive and Defensive Qi). For Blood deficiency, Renshen is used to tonify; when Yang is robust, it naturally generates Yin Blood. Additionally, Danggui harmonizes Blood, and Huangbai is added to rescue Kidney Water, as sweet-cold herbs drain fire; when fire is extinguished, Heart Qi becomes peaceful and calm. When Heart Fire overacts on Spleen Earth, roasted Gancao is used to drain fire and tonify the Spleen; if the dose is too small, it may cause fullness; if there is middle-jiao fullness, remove it; if there is abdominal urgency, pain, or contraction, it is appropriate to use a larger dose. If there is cough, remove Renshen, because clear and turbid Qi interfere with each other, so Chenpi is used to regulate. In late summer, Dampness prevails, so Ershu and Zexie are added to distribute and eliminate damp-heat from above and below. When Dampness prevails, food is not digested; stir-fried Shenqu is pungent and sweet, Qingpi is pungent and warm, promoting digestion and moving Qi; Wuweizi, Maidong, and Renshen are sour, sweet, and slightly cold, draining fierce heat and benefiting Lung Qi, rescuing Geng Metal (Lung).
Yi Guan states: In cases of injury by summer-heat causing vomiting and epistaxis, the heat injures the Heart; Heart deficiency fails to generate Blood. One should not excessively use cold-cooling herbs to drain Heart Fire; instead, add Mudanpi (Moutan Cortex), Shengdi (Rehmanniae Radix), Xijiao (Rhinocerotis Cornu) etc., to the Qingshu Yiqi Tang. Because summer-heat injures both the Heart and Qi, the pulse must be deficient; using Renshen to tonify Qi enables it to control Blood, thus preventing hemorrhage.
Removing Qingpi, Zexie, and Gegen from this formula yields Huangqi Renshen Tang (Dongyuan): Treats summer-heat damaging Yuan Qi, fatigue in late summer, chest fullness with spontaneous sweating, and occasional headaches (intermittent pain indicates an internal injury pattern). Removing Baizhu, Qingpi, Maidong, and Wuweizi, and adding Fuling (Poria), Zhuling (Polyporus), Chaihu (Bupleuri Radix), Qianghuo (Notopterygii Rhizoma et Radix), Fangfeng...