Half-Side Powder，From *Compendium of Materia Medica* (Vol. 41), citing *Formulas for Universal Relief*.，Water Retention.
Half-Side Powder
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Formulas Name : Half-Side Powder
Chinese Name : 半边散
Drug Formulation
Yuanhua (soaked in vinegar, then baked dry) 3 qian, Euphorbia 3 qian, Gan Sui 3 qian, Rhubarb 3 qian, 7 wild dogs (caught within the first five months of the year, when they can fly).
Source
From *Compendium of Materia Medica* (Vol. 41), citing *Formulas for Universal Relief*.
Processing
First, pound scallions into a paste and spread it into a flat cake on a new tile. Place the earth dogs on top of the scallion paste and bake until dry. Remove the wings, legs, and beaks; cut each into two pieces, mark them as left and right pairs, and bake again until dry. Grind into a fine powder. To reduce swelling on the left side, grind the seven left pieces into a powder, mix with the other ingredients, and take as directed; for the right side, use the powder made from the four remaining ingredients.
Benefits
Water Retention.
Instructions for Use
Take 2 qian per dose, mix thoroughly with the powdered earth dog, and dissolve in a decoction of light bamboo leaves and Tianmendong. Take at the fifth watch. Wait until the swelling on the left side subsides; on the fourth day, treat the right side. If there is no response, simply take 3 qian of rhubarb, decoct until reduced by half, and use it to aid the process. If there is still no response, use clear tea to aid the process.
Copyright: Excerpt from From *Compendium of Materia Medica* (Vol. 41), citing *Formulas for Universal Relief*., Copyright belongs to the Original Author and all original sources, This article was shared by DeDe on August 18, 2026, Please credit the source and include a link to the original article when reposting.
Terminology Proofreading: [Cheng Bo] | August 18, 2026 Reviewed by: [Wang Zhongxiang, Associate Chief TCM Physician (China)] | August 18, 2026
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Half-Side Powder,Water Retention.