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