Erqi San，From *Collected Effective Prescriptions of the Zhu Family*, Volume 8.，Cold stagnation in the Kidney Meridian, with qi stagnation and weakness.
Erqi San
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Formulas Name : Erqi San
Chinese Name : 二气散
Drug Formulation
1 large Aconite root (use raw, without removing the skin or navel; cut into three portions and slice thinly), 6 liang of large Aniseed (wash thoroughly, drain, and divide into 3 portions, 2 liang each).
Source
From *Collected Effective Prescriptions of the Zhu Family*, Volume 8.
Benefits
Cold stagnation in the Kidney Meridian, with qi stagnation and weakness.
Instructions for Use
First Stage: Take 1 portion of Aconite Root and 1 portion of 2 liang of Aniseed; stir-fry them together until the aniseed turns yellow and is fragrant and cooked. Store in a clay jar, seal with thick paper, and place in a cool place overnight. The next day, remove the Aconite Root, grind the aniseed into a fine powder, and take it on an empty stomach mixed with salt and wine. Second Stage: Use the same proportions as in the first stage; the stir-frying method and preservation of the nature of the ingredients are the same.However, the next morning, remove only half of the Aconite; grind the remaining half together with the fennel into a fine powder and take it as described above. Third Dose: The dosage, frying method, and preservation of properties are all the same as in the previous two doses; however, the next morning, grind all of the Aconite together with the fennel into a fine powder and take it as described above. The remaining one and a half fen of Aconite may be combined with other herbs for use.
Copyright: Excerpt from From *Collected Effective Prescriptions of the Zhu Family*, Volume 8., Copyright belongs to the Original Author and all original sources, This article was shared by DeDe on August 24, 2026, Please credit the source and include a link to the original article when reposting.
Terminology Proofreading: [Cheng Bo] | August 24, 2026 Reviewed by: [Wang Zhongxiang, Associate Chief TCM Physician (China)] | August 24, 2026
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Erqi San,Cold stagnation in the Kidney Meridian, with qi stagnation and weakness.