SHA YUAN ZI
Astragalus complanatus R. Br. (Fam. Fabaceae) I. Branch with flower; 2. Fruit; 3. Seeds pharmaceutical name Radix Astragali english name astragalus, milkvetch root part used dried root
Radix Astragali is produced mainly in the provinces of Shanxi, Gansu, Heilongjiang, and Inner Mongolia. The root is collected in spring and autumn, dried in sunlight, and used unprepared or stir-baked with honey.
flavor, property, and channel tropism
Sweet in flavor, slightly warm in property, acts on the Spleen and Lung channels.
Tonifies the Qi, elevates Yang, strengthens the Defensive energy and resistance, drains pus to promote healing, and is a diuretic.
clinical use and major combinations
For Spleen and Lung Qi Deficiency with poor appetite, diarrhea, shortness of breath, lassitude, and weakness, or for sinking of Spleen and Stomach Qi with chronic diarrhea and prolapse of the rectum, or prolapse of the uterus. For general debility due to Deficiency of Qi after an illness with fatigue and lassitude, it is used with Radix Ginseng (Ren Shen). For poor appetite, loose stools, or diarrhea due to Deficient Spleen Qi, it is used with Rhizoma Atractylodis Macrocephalae (Bai Zhu). For Deficiency of Blood and Qi, it is used with Radix Angelicae Sinensis (Dang Gui). For Qi Deficiency accompanied by Yang Deficiency with aversion to cold and profuse sweating, it is used with Radix Aconiti Lateralis Preparata (Zhi Fu Zi). For chronic diarrhea and prolapse of the rectum, it is used with Radix Ginseng (Ren Shen), Rhizoma Atractylodis Macrocephalae (Bai Zhu), and Rhizoma Cimicifu-gae (Sheng Ma) in "The Decoction for Reinforcing Middle Heater and Replenishing Qi" (Bu Zhong Yi Qi Tang). For blood in the stool, metrorrhagia, and other types of bleeding due to Deficiency and failure of Qi to keep the Blood flowing within the vessels, it is used with Radix Ginseng (Ren Shen), Arillus Longan (Long Yan Rou), and Semen Ziziphi Spinosae (Suan Zao Ren) in "The Decoction for
Invigorating the Spleen and Nourishing the Heart" (Gui Pi Tang).
For spontaneous sweating due to Deficient Defensive Qi, it is used with Herba Ephedrae Root (Ma Huang Gen) in "The Concha Ostreae Powder" (Mu Li San). For night sweating due to Yin Deficiency, it is used with Radix Rehmanniae (Sheng Di Huang) and Cortex Phellodendri (Huang Bai) in "The Decoction of Radix Angelicae Sinensis with Six Yellow Ingredients" (Dang Gui Liu Huang Tang).
For carbuncles resistant to rupture, it is used with Radix Angelicae Sinensis (Dang Gui) and Squama Manitis (Chuan Shan Jia). For slow-healing carbuncles after ulceration, it is used with Radix An-gelicae Sinensis (Dang Gui), Radix Ginseng (Ren Shen), and Cortex Cinnamomi (Rou Gui) in "The Decoction of Ten Powerful Tonics" (Shi Quan Da Bu Tang).
For edema and scanty urine, it is used with Radix Aristolochiae Fangchi (Fang Ji) in "The Decoction of Aristolochiae Fangchi and Radix Astragali Mem-branaceus" (Fang Ji Huang Qi Tang).
For numbness in extremities due to Deficiency of Qi and Blood Stasis, it is used with Ramulus Cinna-momi (Gui Zhi), Radix Paeoniae Alba (Bai Shao), Fructus Zizyphi Jujube (Da Zao), and Rhizoma Zingiberis Recens (Sheng Jiang); for arm pain due to Wind Dampness, it is used with Rhizoma No-toperygii (Qiang Huo), Radix Saposhnikoviae (Fang Feng), Radix Angelicae Sinensis (Dang Gui), and Rhizoma Curcumae Longae (Jiang Huang); for hemiplegia after apoplexy, it is used with Radix An-gelicae Sinensis (Dang Gui), Rhizoma Ligustici Chuanxiong (Chuan Xiong), Flos Carthami Tinc-torii (Hong Hua), and Semen Persicae (Tao Ren) in "The Decoction of Invigorating Yang for Recuperation" (Bu Yang Huan Wu Tang).
dosage and administration
10—15 g, or 30—60 g for a large dosage, decocted in water for an oral dose. For use as a Qi and Yang tonic, it is stir-baked.
Should not be used for the following: Exterior syndromes of the Excess type; Qi Stagnation and Dampness in the Interior; retention of food as the result of Excess Yang due to Yin Deficiency; carbuncles and boils at the initial stage; or protracted ulceration with Excess Heat.
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