Pungent, sweet and neutral
Liver and kidney
1. To tonify kidneys and control essence; 2. To nourish liver and brighten the eyes.
1. Deficient kidneys manifested as impotence, nocturnal emissions, premature ejaculation, lower back pain or leukorrhagia. Dadder seed (Tu Si Zi)is used with Eucommia bark (Du Zhong), Dioscores (Shan Yao)and Cibot rhizome (Gou Ji)for lower back pain or leukorrhagia; Dadder seed (Tusizi) is used with Schisandra fruit (Wu Wei Zi), Cnidium fruit (Shechuangzi), Flattened milkvetch seed (Sha Yuan Zi)and Grossy privet fruit (Nu Zhen Zi) for impotence. 2. Diarrhea due to deficient spleen. Dadder seed (Tusizi) is used with Pilose asiabell root (Dang Shen), White atractylodes (aizhu) and Dioscorea(Shanyao)
This herb is contraindicated in cases with deficiency of yin with excessive fire, constipation and red, scanty urine.