夫肾属于水。而主脚膝。若肾气虚弱。为风湿毒瓦斯所搏。则肾气不足。不能宣通水液。
水液不传于小肠。致水气流溢。浸渍皮肤。故令脚膝浮肿也。
治水气。脚膝浮肿。大小便不利。上气喘急。槟榔散方。
槟榔（半两） 木香（半两） 桂心（半两） 紫苏茎叶（一两） 郁李仁（一两半汤
浸去皮微
炒） 赤茯苓（一两） 木通（一两锉） 陈橘皮（一两汤浸去白瓤焙） 牵牛子（二两微
炒）
上件药。捣细罗为散。每服空心。以桑根白皮汤。调下二钱。夜临卧时再服。
治水气。脚膝浮肿。上攻腹胁。妨闷。上气喘息。小便不利。郁李仁散方。
郁李仁（一两汤浸去皮微炒） 桑根白皮（一两锉） 赤茯苓（一两） 泽漆叶（一两）
汉防
己（一两） 泽泻（一两） 陈橘皮（一两汤浸去白瓤焙） 甘遂（一两煨令微黄）
上件药。捣粗罗为散。每服。用猪肾一对。切去脂膜。大豆半合。先以水二大盏。煮至
一盏
服。
商陆（一两） 赤小豆（一合） 木通（半两锉） 泽泻（半两） 赤茯苓（半两） 陈
橘皮（半
两汤浸去白瓤焙） 葱白（三茎） 生姜（一分）
上件药。细锉。都以水三大盏。煎至一盏半。去滓。食前分温三服。
治水气。脚膝肿满。入腹。气喘烦闷。小便不利。大戟散方。
大戟（一两半锉碎微炒） 木通（半两锉） 当归（半两锉碎微炒） 陈橘皮（三分汤
浸去白
瓤焙） 木香（半两）
上件药。捣筛为散。每服四钱。以水一中盏。煎至六分。去滓。空心温服。服后当利。
未得快利。夜临卧时再服。
又方。
牵牛子（二两微炒） 木通（三分锉） 槟榔（一两） 木香（半两） 青橘皮（三分
汤浸去白
瓤焙）
上件药。捣细罗为散。每于空心。及夜临卧时。以葱酒调下三钱。
The Kidney belongs to Water and primarily governs the feet and knees. If Kidney Qi is deficient and assaulted by Wind-Dampness and toxic factors, the insufficiency of Kidney Qi fails to disseminate and circulate fluid metabolism.
Fluid metabolism cannot be transmitted to the Small Intestine, causing water qi to overflow and infiltrate the skin, thereby resulting in edema of the feet and knees.
For treating water qi disease presenting with edema of the feet and knees, difficulty in urination and defecation, and upper body asthma with rapid breathing, the Areca Seed Powder Formula (Binglang San):
Areca Seed (Banliang) [Arecae Semen]
Costus Root (Banliang) [Aucklandiae Radix]
Cinnamon Heart (Banliang) [Lae Cinnamomi Ramulus]
Perilla Stem and Leaf (Yi Liang) [Perillae Caulis et Folium]
Sloe Seed (Yiliang Ban), soaked in hot water, peeled, lightly stir-fried [Prunus armeniaca var. ansu seed]
Red Poria (Yi Liang) [Poria cum Ligno Rubrum]
Akebia Stem (Yi Liang), chopped [Akebiae Caulis]
Dried Tangerine Peel (Yi Liang), soaked in hot water, white pith removed, dried [Citri Reticulatae Pericarpium]
Pharbitis Seed (Er Liang), lightly stir-fried [Pharbitidis Semen]
The above ingredients are finely ground into a powder. Each dose consists of two qian, taken on an empty stomach mixed with decoction of Mulberry Root Bark (Sanggen Baipi). It is administered again at bedtime.
For treating water qi disease presenting with edema of the feet and knees, water qi attacking the abdomen and hypochondrium causing stifling discomfort, upper body asthma with panting, and difficulty in urination, the Sloe Seed Powder Formula (Yuliren San):
Sloe Seed (Yi Liang), soaked in hot water, peeled, lightly stir-fried [Prunus armeniaca var. ansu seed]
Mulberry Root Bark (Yi Liang), chopped [Mori Radix Cortex]
Red Poria (Yi Liang) [Poria cum Ligno Rubrum]
Phytolacca Leaf (Yi Liang) [Phytolaccae Folium]
Stephania Root (Yi Liang) [Stephaniae Tetrandrae Radix]
Alisma Rhizome (Yi Liang) [Alismatis Rhizoma]
Dried Tangerine Peel (Yi Liang), soaked in hot water, white pith removed, dried [Citri Reticulatae Pericarpium]
Kansui Root (Yi Liang), roasted until slightly yellow [Euphorbiae Kansui Radix]
The above ingredients are coarsely ground into a powder. For each dose, use one pair of pig kidneys, removing the fatty membrane, along with half he of soybeans. Boil these in two large zhan of water until reduced to one zhan, then consume.
Phytolacca Root (Yi Liang) [Phytolaccae Radix]
Adzuki Bean (Yi He) [Vigna angularis]
Akebia Stem (Banliang), chopped [Akebiae Caulis]
Alisma Rhizome (Banliang) [Alismatis Rhizoma]
Red Poria (Banliang) [Poria cum Ligno Rubrum]
Dried Tangerine Peel (Banliang), soaked in hot water, white pith removed, dried [Citri Reticulatae Pericarpium]
Scallion White (San Jing) [Allii Fistulosi Bulbus]
Fresh Ginger (Yi Fen) [Zingiberis Recens Rhizoma]
The above ingredients are finely chopped. Combine all with three large zhan of water, decoct until reduced to one and a half zhan. Strain the dregs. Divide into three warm doses to be taken before meals.
For treating water qi disease presenting with swelling and fullness of the feet and knees, water qi entering the abdomen, asthma with irritability and stifling sensation, and difficulty in urination, the Euphorbia Powder Formula (Daji San):
Euphorbia Root (Yi Liang Ban), chopped, lightly stir-fried [Euphorbiae Radix]
Akebia Stem (Banliang), chopped [Akebiae Caulis]
Angelica Root (Banliang), chopped, lightly stir-fried [Angelicae Sinensis Radix]
Dried Tangerine Peel (San Fen), soaked in hot water, white pith removed, dried [Citri Reticulatae Pericarpium]
Costus Root (Banliang) [Aucklandiae Radix]
The above ingredients are sifted into a powder. Each dose is four qian, decocted in one medium zhan of water until reduced to six parts. Strain the dregs and take warm on an empty stomach. Diarrhea should follow. If effective evacuation is not achieved quickly, administer another dose at bedtime.
Another formula:
Pharbitis Seed (Er Liang), lightly stir-fried [Pharbitidis Semen]
Akebia Stem (San Fen), chopped [Akebiae Caulis]
Areca Seed (Yi Liang) [Arecae Semen]
Costus Root (Banliang) [Aucklandiae Radix]
Green Tangerine Peel (San Fen), soaked in hot water, white pith removed, dried [Citri Reticulatae Pericarpium Viride]
The above ingredients are finely ground into a powder. Take three qian mixed with scallion wine on an empty stomach and at bedtime.