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Chai Hu (柴胡), the root of Bupleurum, resolves lesser-yang (shaoyang) half-exterior-half-interior disorders and reduces alternating fever and chills, spreads constrained Liver qi, and raises the clear yang to treat prolapse.
Latin / Pharmaceutical Name
Bupleurum chinense (Radix Bupleuri)
Common English Name
Bupleurum root
Taste
Bitter, acrid
Temperature
Cool
Channels Entered
Liver, Gall Bladder, Pericardium, San Jiao
Actions & Functions
- Harmonises and releases lesser-yang disorders (alternating chills and fever)
- Spreads constrained Liver qi and relieves stagnation
- Raises the clear yang qi (for prolapse and sinking qi)
Indications
Shaoyang syndrome with alternating chills and fever, a bitter taste and fullness of the chest and hypochondrium; Liver qi constraint with irritability and menstrual disorders; and sinking qi with prolapse.
Dosage
3-9 g in decoction.
Common Combinations
With Huang Qin (Xiao Chai Hu Tang) for shaoyang; with Dang Gui and Bai Shao (Xiao Yao San) for Liver constraint.
Cautions & Contraindications
Use with caution in Liver yang rising and yin deficiency, as it can raise yang; can be drying.
