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Bu Gu Zhi (補骨脂), the fruit of Psoralea corylifolia, warms and tonifies Kidney yang, secures the essence and urine, and (with the Spleen) stops chronic, early-morning diarrhoea.
Latin / Pharmaceutical Name
Psoralea corylifolia (Fructus Psoraleae)
Common English Name
Psoralea fruit
Taste
Acrid, bitter
Temperature
Very warm
Channels Entered
Kidney, Spleen
Actions & Functions
- Tonifies and warms Kidney yang
- Secures the essence and reduces urination
- Warms the Spleen and stops daybreak diarrhoea
- Aids the Kidney in grasping the qi (wheezing)
Indications
Kidney yang deficiency with impotence, seminal emission, frequent urination and enuresis; daybreak (cock-crow) diarrhoea from Spleen and Kidney yang deficiency; and wheezing from the Kidney failing to grasp the qi.
Dosage
6-15 g in decoction.
Common Combinations
With Rou Dou Kou, Wu Zhu Yu and Wu Wei Zi (Si Shen Wan) for daybreak diarrhoea.
Cautions & Contraindications
Avoid in yin deficiency with heat and in constipation.
