Chai Hu (Bupleuri Radix)

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.

Chái Hú  ·  柴胡

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.

About Attilio

Doctor of Chinese medicine, acupuncture expert and author of My Fertility Guide and My Pregnancy Guide.

Check Also

PubMed research

Network Meta-Analysis Finds Chinese Herbal Decoctions Improve Outcomes and Reduce Side Effects in Breast Cancer Treatment

Research summary (Traditional Chinese Medicine): Efficacy and safety of traditional Chinese medicine decoctions in breast cancer treatment: a network meta-analysis. - Frontiers in oncology, 2026.