XIA TIAN WU
Corydalis decumbens (Thunb.) Pers. (Fam. Papaveraceae) I. Whole plant with flower; 2. Flower; 3. Upper petal; 4. Fruit english name corydalis rhizome part used dried tuber
Rhizoma Corydalis is produced mainly in Zhejiang province, collected in summer. The herb is used unprepared, pounded, or ground into powder, or parched with vinegar.
flavor, property, and channel tropism Pungent and bitter in flavor, warm in property, acts on the Heart, Liver, and Spleen channels.
Invigorates Blood and promotes circulation of Qi to relieve pain.
clinical use and major combinations
For pain in the epigastrium, hypochondrium, and stomach due to Stasis of Qi and Blood, also for pain all over the body. In treating severe pain in the stomach, it is used alone or with Fructus Meliae Radicis (Chuan Lian Zi). For dysmenorrhea, it is used with Radix Angelicae Sinensis (Dang Gui), Rhizoma Ligustici Chuanxiong (Chuan Xiong), Radix Paeoniae Alba (Bai Shao), and Rhizoma Cyperi (Xiang Fu). For pain in the hypochondrium, it is used with Fructus Trichosanthis (Gua Lou), Bulbus Allii Macrostemi (Xie Bai), Radix Cur-cumae (Yu Jin), and Radix Linderae (Wu Yao). For pain in the extremities or all over the body, it is used with Radix Angelicae Sinensis (Dang Gui), Ramulus Cinnamomi (Gui Zhi), and Radix Peo-niae Rubra (Chi Shao). For traumatic pain, it is used with Radix Angelicae Sinensis (Dang Gui), Rhizoma Ligustici Chuanxiong (Chuan Xiong), Gummi Olibanum (Ru Xiang), and Myrrha (Mo Yao).
dosage and administration
5—io g, decocted in water; or 1.5—3 g of the powder can be taken orally with water. The herb parched with vinegar is more effective.
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