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Chinese Medicinal Material
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【Chinese Name】 |
益胃湯
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【Phonetic】 |
Yi Wei Tang
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【English Name】 |
Stomach-Boosting Decoction |
【Classification】 |
Dryness-moistening formulas |
【Source】 |
《Systematic Differentiation of Warm Diseases》Wen Bing Tiao Bian《溫病條辨》 |
【Combination】 |
Glehniae Radix (Bei Sha Shen) 3 qian (9g), Ophiopogonis Radix (Mai Dong) 5 qian (15g), Saccharon Crystallinum (Bing Tang) 1 qian (3g), Rehmanniae Radix (Sheng Di) 5 qian (15g), Polygonati Odorati Rhizoma (Yu Zhu) 1.5 qian (4.5g) |
【Method】 |
The source text states to cook the ingredients with 5 cups of water until the decoction is reduced to 2 cups. Take the strained decoction twice a day and then decoct the dregs again and take 1 cup. (Modern use: prepare the ingredients as a decoction). |
【Action】 |
Nourishes yin and boosts the stomach. |
【Indication】 |
Yi Wei Tang is indicated for stomach yin damage. The symptoms include a burning sensation and dull pain in the gastric cavity, hunger with no desire to eat, dry mouth and throat, and dry stool. The tongue is red with scanty coating, and the pulse is thready and rapid. |
【Pathogenesis】 |
The stomach is yang earth. It likes moistness and dislikes dryness. It governs the intake of food and drinks and the stomach qi governs descent. The consumption of stomach yin and internal deficiency-heat is often caused by the following conditions:
- where febrile disease consumes and scorches yin fluid
- eating acrid food excessively
- overusing formulas that induce vomiting or purge
- enduring stomach disorders that cannot recover
Stomach yin deficiency causes the collaterals to lose nourishment and produce dull pain in the stomach cavity. The heat that results from yin deficiency results in burning pain within the stomach cavity. When the stomach fails to properly govern the intake of food and drink, hunger with no desire to eat will manifest. Deficient stomach yin-fluids fail to nourish the mouth, throat, and large intestine. As a result, the clinical manifestations of this condition include symptoms such as dry mouth and throat, and dry stool. A red tongue body with scanty tongue coating and a deficient, rapid pulse are typical signs of internal heat caused by yin deficiency. The stomach is the reservoir of water and grain, and the twelve channels qi are rooted in the stomach. Therefore, if the stomach yin can recover, the stomach qi will descend to improve poor appetite. The appropriate therapeutic method is to promote fluid production with sweet-cooling, yin-nourishing, and stomach-boosting medicinals. |
【Application】 |
1. Essential pattern differentiation Yi Wei Tang is commonly used to nourish the stomach yin. This clinical pattern is marked by burning sensation and dull pain within gastric cavity, poor appetite, dry mouth and throat, red tongue with scanty coating, thin and rapid pulse. 2. Modern applications This formula is commonly used in the following biomedically defined disorders when the patient shows signs of stomach yin deficiency: chronic gastritis, diabetes and infantile anorexia. |
【Additonal formulae】 |
Yu Ye Tang (Jade Humor Decoction 玉液汤) [Source]《Records of Chinese Medicine with Reference to Western Medicine》Yi Xue Zhong Zhong Can Xi Lu《医学衷中参西录》 [Ingredients] Shan yao 1 liang (30g), huang qi 5 qian (15g), zhi mu 6 qian (18g), ji nei jin 2 qian (6g), ge gen 1.5 qian (6g), wu wei zi 3 qian (9g), tian hua fen3 qian (9g) [Preparation and Administration] Prepare it as a decoction. [Actions] Boosts qi and nourishes yin, consolidates kidney and quenches thirst. [Applicable Patterns] xiao ke (wasting-thirst) when the patient shows signs of qi and yin deficiency. The symptoms include: dry mouth, thirst, frequent urination, fatigue, short breath. The pulse is deficient, thready and forceless. |
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