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Major Pinellia Decoction
大半夏汤 〔大半夏湯〕dà bàn xià tāng
Source: Jīn Guì Yào Lüè 金匮要略
Ingredients:
- Bàn xià (半夏 Pinelliae Rhizoma, pinellia [rhizome]) 4–7g
- Rén shēn (人参 Ginseng Radix, ginseng) (or Dǎng shēn (党参 Codonopsis Radix, codonopsis [root])) 3g
- Fēng mì (蜂蜜 Mel , honey) 20g
Action: Supplements qì; downbears counterflow and relieves retching.
Indication: Stomach qì vacuity with rheum and damage to yīn due to stomach reflux (fǎn wèi). The signs observed in this condition are
Category:
Method: Decoct with water.
Rationale: Bàn xià dries dampness and transforms phlegm, and also downbears counterflow and checks vomiting. Rén shēn —or Dǎng shēn— fortifies the spleen and harmonizes the stomach, and combined with Bàn xià does not cause any stagnation. These two agents together promote the upbearing of the clear and downbearing of the turbid. Shēng jiāng, which is normally used to address stomach vacuity with rheum because of its power to transform rheum and check vomiting, is not used in this case because of the damage to yīn by enduring vomiting such as dry bound stool and
Similar: Xiǎo bàn xià tāng (小半夏汤 Minor Pinellia Decoction)
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