Bupleurum Chai Hu (Bupleurum chinense): Benefits, Dosage, Safety & Evidence

Frequently asked questions

How does Bupleurum Chai Hu work in the body?

Bupleurum contains saikosaponins as its primary active compounds, which modulate immune function through anti-inflammatory pathways and protect liver cells from damage. These compounds work by inhibiting pro-inflammatory cytokines and supporting hepatocyte regeneration. In Traditional Chinese Medicine, Bupleurum is classified as an herb that harmonizes the Shao Yang layer, releasing externally-contracted pathogens while regulating liver qi. Evidence Level: C.

Does Bupleurum interact with any medications?

Bupleurum may interact with immunosuppressant medications due to its immune-modulating properties, potentially reducing their effectiveness. Patients taking corticosteroids, cyclosporine, or other immunosuppressive drugs should use Bupleurum with caution and under professional supervision. Additionally, because Bupleurum affects liver metabolism, it may alter the metabolism of various pharmaceuticals processed through the hepatic cytochrome P450 system. Consult a healthcare provider before combining with any prescription medications.

What is the recommended dosage for Bupleurum Chai Hu?

The standard adult dosage for Bupleurum is 3-9 grams as a decoction when prepared as a traditional herbal tea. For standardized extract formulations, the typical dose is 300-500mg taken twice daily. Dosage may vary depending on the specific formula being used, as Bupleurum is rarely prescribed alone in clinical practice. Always follow the recommendations of a qualified herbalist or healthcare practitioner, as individual needs may differ based on the condition being treated.

Is Bupleurum safe to take during pregnancy?

Bupleurum is considered unsafe during pregnancy and should be avoided. Traditional Chinese Medicine texts contraindicate its use in pregnant women due to its effects on liver qi and its potential to stimulate uterine contractions. Additionally, the saikosaponins in Bupleurum may affect hormonal balance during this sensitive period. Women who are pregnant, trying to conceive, or breastfeeding should consult a qualified healthcare provider before using any herbal preparations containing Bupleurum.

Can Bupleurum help protect the liver?

Bupleurum has demonstrated hepatoprotective properties in research studies, showing potential for protecting liver cells and reducing liver fibrosis. The saikosaponins in Bupleurum help reduce inflammation and support liver cell regeneration, making it a common ingredient in formulas for hepatitis and liver support. However, long-term use at high doses has been associated with rare cases of hepatotoxicity, so it should be used appropriately. Evidence Level: C. Those with existing liver failure should avoid Bupleurum entirely.

PubMed-compiled information sheet

This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.

Compiled from 29 PubMed articles · model: gemma4:31b

Summary

Bupleurum chinense (Chai Hu) is a traditional Chinese medicinal herb used for its antidepressant, anti-inflammatory, and hepatoprotective properties [PMID:37844745, 30466994].

Background

Radix Bupleuri, known as Chaihu, is derived from the dried roots of Bupleurum chinense DC. and Bupleurum scorzonerifolium Willd. [PMID:37844745, 25228909].

Traditional uses

It has been used for over two thousand years in traditional Chinese medicine to treat depression, alleviate exterior syndrome, disperse heat, modulate liver-qi, and elevate yang-qi [PMID:37277081, 37844745].

Active compounds

The primary active components are triterpenoid saponins known as saikosaponins (specifically Saikosaponins A, B2, and D) [PMID:35909726, 37277081, 37002971, 39638887]. Other identified compounds include narcissoside (a flavonoid) and arabinogalactan (a polysaccharide) [PMID:40716620, 41831977].

Mechanism of action

Mechanisms include the inhibition of ferroptosis-mediated neuroinflammation and ER stress via Saikosaponin B2 [PMID:37277081], activation of the PI3K/AKT/Nrf2 pathway to reduce oxidative stress [PMID:37002971], and modulation of the TLR4/MyD88/NF-κB signaling pathway via gut microbiota [PMID:34111616]. It may also promote hippocampal neurogenesis through the TREM2/PI3K/Akt pathway [PMID:40716620] or tet1/dll3/notch1 signaling [PMID:37844745].

Clinical evidence

Evidence ADepression

Meta-analysis of 42 RCTs showed that Chai Hu Shu Gan San was more effective than regular Western medicine alone for treating depression [PMID:29454341].

Evidence ALiver Diseases (Hepatitis, Fibrosis, HCC)

Xiao-Chai-Hu decoction (XCHD) has shown promise in treating hepatitis, inhibiting liver fibrosis, and serving as adjunct therapy for hepatic carcinoma [PMID:40347886].

Evidence BCancer comorbid with depressive symptoms

A placebo-controlled trial indicated that Xiao-Chai-Hu-Tang (XCHT) ameliorates tumor growth in cancer patients with depressive symptoms [PMID:34111616].

Evidence AChronic Hepatitis B

Xiao Chai Hu Tang is used to decrease discomfort and virus replication, though rigorous review methodology is required to establish benefits and harms [PMID:31697415].

Safety & adverse effects

Chai Hu has been reported as a potential cause of rare hepatotoxicity and liver injury [PMID:26357619, 31644084]. In mouse models, extracts of Bupleurum chinense increased serum AST, ALT, IgG, and ANA levels, leading to necroinflammatory changes in the liver [PMID:23890230].

Evidence summary

Evidence is strongest (Level A) for the treatment of depression and liver diseases via meta-analyses of TCM formulas. Preclinical evidence (Level D) supports anti-tumor and neuroprotective effects of isolated saikosaponins.

PubMed sources

1.PMID: 10675182 (2000) — Herb-drug interactions. · Lancet (London, England)
2.PMID: 34111616 (2021) — Xiao-Chai-Hu-Tang ameliorates tumor growth in cancer comorbid depressive symptoms via modulating gut microbiota-mediated TLR4/MyD88/NF-κB signaling pathway. · Phytomedicine : international journal of phytotherapy and phytopharmacology
3.PMID: 37277081 (2023) — Saikosaponin B2 ameliorates depression-induced microglia activation by inhibiting ferroptosis-mediated neuroinflammation and ER stress. · Journal of ethnopharmacology
4.PMID: 37002971 (2023) — Saikosaponin A and D attenuate skeletal muscle atrophy in chronic kidney disease by reducing oxidative stress through activation of PI3K/AKT/Nrf2 pathway. · Phytomedicine : international journal of phytotherapy and phytopharmacology
5.PMID: 39981856 (2025)

Bupleurum Chai Hu

Sources & Citations

Calculate a safe dose of Bupleurum Chai Hu

Ribes nigrum

Ganoderma Tsugae

Taraxacum mongolicum

Frequently asked questions

Summary

Background

Traditional uses

Active compounds

Mechanism of action

Clinical evidence

Safety & adverse effects

Evidence summary

PubMed sources

Government sources

Bupleurum Chai Hu

Sources & Citations

Calculate a safe dose of Bupleurum Chai Hu

Related Herbs

Ribes nigrum

Ganoderma Tsugae

Taraxacum mongolicum

Frequently asked questions

Summary

Background

Traditional uses

Active compounds

Mechanism of action

Clinical evidence

Safety & adverse effects

Evidence summary

PubMed sources

Government sources