Psoralea fruit (Buguzhi)
Pharmaceutical Name: Fructus Psoraleae
Botanical Name: Psoralea corylifolia L.
Common Name: Psoralea fruit
Source of Earliest Record: Yaoxing Lun
Part Used: The ripe fruit is gathered in autumn, and then it is dried in the sun.
Natural Properties & Taste: Bitter, pungent and very warm
Meridians: Kidney and spleen
1. To tonify kidneys and strengthen yang.
2. To prevent emissions and nocturnal urination.
3. To warm the spleen and stop diarrhea
1. Deficient kidneys manifested as impotence and soreness and weakness of the lower back and knees. Psoralea fruit (Buguzhi) is used with Dadder seed (Tusizi), Cistanche (Roucongrong) and Eucommia bark (Duzhong).
2. Nocturnal urination and emissions due to kidney deficiency. Psoralea fruit (Buguzhi) is used with Bitter cardamom (Yizhiren) and Dioscorea (Shanyao).
3. Diarrhea due to deficiency of yang of the spleen and kidneys. Psoralea fruit (Buguzhi) is used with Evodia fruit (Wuzhuyu), Nutmeg (Roudoukou) and Schisandra fruit (Wuweizi) in the formula Sishen Wan.
Dosage: 5-10 g
Cautions & Contraindications: This herb is contraindicated in cases with deficiency of yin with excessive fire as well as constipation.