脾主困。实则日晡身热饮水。虚则吐泻生风。
实则泻黄散三黄丸泻之。虚则益黄散异功散小建中汤调元汤肥儿丸补之。
泻黄散 治脾热弄舌。
藿香叶（七钱） 山栀仁（二两） 石膏（五钱） 防风（四两） 上锉。蜜酒炒微香。碾为末
。水煎温服。
益黄散 治脾胃虚冷。
陈皮（一两） 青皮 诃子 炙甘草 丁香（各二钱） 上为末。水煎服。量大小加减。
治脾胃寒湿太甚。神品之药也。以补脾胃之虚误矣。病非呕吐泻痢清白。不可服也。
东垣
云。丁香辛热助火。火旺土愈虚矣。青橘皮泻肝。丁香大泻肺与大肠。脾胃实当泻子。今脾
胃虚。更泻子而助火。重虚其土。杀人无疑。故以异攻散代之。
钱氏异功散 温中和气。治吐泻不思食。及脾胃虚冷痛。
人参 白茯苓 白术 甘草（炙） 陈皮（各等分） 上为末。每服一钱半至二钱。水煎服
。即四君子加陈皮。
调元汤 补脾胃。扶元气之圣方。益脾土。泻火邪。补元气之要药。
黄 （蜜炙） 人参（各等分） 炙甘草（减半） 上水煎。不拘时服。
小建中汤 治脾胃中气虚损。加黄 名黄 建中汤。
白芍药（酒炒） 炙甘草（各等分） 肉桂（减半） 上锉末。水煎成剂。去渣滓入白饧一匙
。再煎一沸温服。
肥儿丸 小儿脾胃素弱。食少而瘦。或气强壮。偶因伤食。或因大病后瘦。此家传秘方
人参 白术 白茯苓 山药（蒸） 莲肉 当归（酒洗各五钱） 陈皮（二钱） 青皮 木香
砂
丸。麻子大。每服十五丸。二十五丸。三十五丸。四十五丸。至五十丸。米饮送下。
脾的功能特点是容易受困阻。如果脾实证，表现为下午申时（15:00-17:00）身体发热、口渴饮水；如果脾虚证，则表现为呕吐、腹泻并引发肝风内动（惊风）。
对于脾实证，使用泻黄散或三黄丸进行泻下治疗；对于脾虚证，使用益黄散、异功散、小建中汤、调元汤或肥儿丸进行补益调理。
泻黄散：用于治疗脾热导致的弄舌症（伸舌弄口）。
药材组成：藿香叶（七钱）、山栀仁（二两）、石膏（五钱）、防风（四两）。以上药材切碎，用蜂蜜和酒炒至微香，碾成粉末。用水煎煮，温服。
益黄散：用于治疗脾胃虚寒。
药材组成：陈皮（一两）、青皮、诃子、炙甘草、丁香（各二钱）。以上药材研成粉末，用水煎服。根据患者年龄大小调整剂量。
此方是治疗脾胃寒湿过重的神效药物。但如果误用于补益脾胃之虚，则是错误的。除非病症不是呕吐、腹泻且排泄物清白，否则不可服用。
李东垣曾说：丁香性辛热，助长火势，火旺则土更虚。青橘皮泻肝气，丁香大泻肺与大肠之气。脾胃实证时应当泻其子脏（心），如今脾胃已虚，再泻子脏并助火，会加重脾土的虚弱，无疑会导致死亡。因此应用异功散代替。
钱氏异功散：具有温中和胃、调和气机的作用。用于治疗呕吐、腹泻、不思饮食，以及脾胃虚寒引起的疼痛。
药材组成：人参、白茯苓、白术、炙甘草、陈皮（各等分）。以上药材研成粉末。每次服用一钱半至二钱，用水煎服。即四君子汤加陈皮而成。
调元汤：是补益脾胃、扶持元气的圣方。能补益脾土，清泻火邪，是补益元气的重要药物。
药材组成：黄芪（蜜炙）、人参（各等分）、炙甘草（减半）。以上药材用水煎煮，不拘时间服用。
小建中汤：用于治疗脾胃中气虚损。加入黄芪后称为黄芪建中汤。
药材组成：白芍药（酒炒）、炙甘草（各等分）、肉桂（减半）。以上药材切碎研末，用水煎煮成剂，去渣滓，加入白糖一勺，再煮沸一次，温服。
肥儿丸：小儿脾胃素来虚弱，饮食少而消瘦；或者体质强壮，偶尔因伤食，或因大病后消瘦。这是家传秘方。
药材组成：人参、白术、白茯苓、山药（蒸制）、莲肉、当归（酒洗，各五钱）、陈皮（二钱）、青皮、木香、砂仁。制成如麻子大小的丸剂。每次服用十五丸、二十五丸、三十五丸、四十五丸，直至五十丸，用米饮送服。
The Spleen is prone to being constrained. In excess conditions, there is afternoon fever (occurring during the Shen hour, 15:00–17:00) and thirst with desire to drink water. In deficiency conditions, there is vomiting, diarrhea, and the generation of wind (internal stirring of wind leading to convulsions).
For excess conditions, use Xiehuang San (Elixir to Drain the Spleen) or Sanhuang Wan (Three Yellows Pill) to drain; for deficiency conditions, use Yihuang San (Elixir to Benefit the Spleen), Yigong San (Extraordinary Efficacy Powder), Xiao Jianzhong Tang (Minor Construct the Middle Decoction), Tiaoyuan Tang (Regulate Origin Decoction), or Fei'er Wan (Fatten Infant Pill) to tonify.
Xiehuang San (Elixir to Drain the Spleen): Treats tongue-playing caused by Spleen heat.
Ingredients: Huoxiang Ye (Agastache Leaf), Shanzhi Ren (Gardenia Seed), Shigao (Gypsum Fibrosum), Fangfeng (Saposhnikovia Root). The above are chopped, stir-fried with honey and wine until slightly fragrant, then ground into powder. Decoct in water and take warm.
Yihuang San (Elixir to Benefit the Spleen): Treats cold-deficiency of the Spleen and Stomach.
Ingredients: Chenpi (Aged Tangerine Peel), Qingpi (Green Tangerine Peel), Hezi (Chebula Fruit), Zhi Gancao (Honey-fried Licorice Root), Dingxiang (Caryophylli Flos). Each two qian. The above are ground into powder. Decoct in water and take. Adjust dosage according to age and size.
This is a miraculous medicine for treating excessive cold-dampness of the Spleen and Stomach. It is erroneous to use it to tonify Spleen-Stomach deficiency. It should not be taken unless the disease presents as vomiting or diarrhea with clear/white excreta.
Li Dongyuan stated: Dingxiang is acrid and hot, assisting fire; when fire is vigorous, Earth becomes more deficient. Qingjupi drains Liver Qi, and Dingxiang heavily drains Lung and Large Intestine Qi. When Spleen-Stomach is in excess, one should drain its "child" organ (Heart). Now that Spleen-Stomach is deficient, draining the child and assisting fire will further deplete Earth, undoubtedly causing death. Therefore, Yigong San should be used instead.
Qian's Yigong San (Extraordinary Efficacy Powder): Warms the middle and harmonizes Qi. Treats vomiting, diarrhea, anorexia, and pain due to Spleen-Stomach cold-deficiency.
Ingredients: Renshen (Ginseng Radix et Rhizoma), Baifuling (Poria), Baizhu (Atractylodis Macrocephalae Rhizoma), Zhi Gancao (Honey-fried Glycyrrhizae Radix et Rhizoma), Chenpi (Citri Reticulatae Pericarpium). Equal parts. The above are ground into powder. Take 1.5 to 2 qian per dose, decocted in water. This is Si Jun Zi Tang (Four Gentlemen Decoction) plus Chenpi.
Tiaoyuan Tang (Regulate Origin Decoction): A sacred formula for tonifying the Spleen and Stomach and supporting Yuan Qi (Original Qi). It benefits Spleen Earth and drains Fire pathogenic factors; it is a key herb for tonifying Yuan Qi.
Ingredients: Huangqi (Astragali Radix, honey-fried), Renshen (Ginseng Radix et Rhizoma). Equal parts. Zhi Gancao (Honey-fried Glycyrrhizae Radix et Rhizoma), half amount. Decoct in water and take at any time.
Xiao Jianzhong Tang (Minor Construct the Middle Decoction): Treats deficiency damage of Zhong Qi (Middle Qi) in the Spleen and Stomach. Adding Huangqi makes it Huangqi Jianzhong Tang (Astragalus Construct the Middle Decoction).
Ingredients: Baishao Yao (Paeoniae Radix Alba, wine-fried), Zhi Gancao (Honey-fried Glycyrrhizae Radix et Rhizoma). Equal parts. Rougui (Cinnamomi Cortex), half amount. Chop and grind into powder. Decoct in water to form the liquid, remove dregs, add one spoonful of Bai Xi (White Sugar/Maltose), boil once more, and take warm.
Fei'er Wan (Fatten Infant Pill): Children with inherently weak Spleen and Stomach eat little and are thin. Or, those with strong constitution may become thin after occasional food stagnation or following a severe illness. This is a family secret recipe.
Ingredients: Renshen (Ginseng Radix et Rhizoma), Baizhu (Atractylodis Macrocephalae Rhizoma), Baifuling (Poria), Shanyao (Dioscoreae Rhizoma, steamed), Lianrou (Nelumbinis Semen), Danggui (Angelicae Sinensis Radix, wine-washed). Each five qian. Chenpi (Citri Reticulatae Pericarpium) two qian. Qingpi (Green Tangerine Peel), Muxiang (Vladimiriae Radix), Sharen (Amomi Fructus). Form pills the size of hemp seeds. Take 15, 25, 35, 45, up to 50 pills per dose, delivered with rice water.