Chinese eupatorium

Botanical

What is it

Chinese eupatorium most often refers to Eupatorium fortunei (pei lan) or Eupatorium japonicum, plants in the Asteraceae family used in traditional Chinese medicine for summer heat, dampness, indigestion, and skin conditions.

Evidence for 1 use

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Digestive complaints (traditional)

Mixed Evidence

Used in TCM for 'damp' digestive symptoms. Modern human evidence is limited.

How it works

Eupatorium species contain pyrrolizidine alkaloids (which can be hepatotoxic), terpenes, sesquiterpene lactones, and flavonoids. Traditional use focuses on aromatic 'dampness-resolving' actions for GI complaints. Modern research is limited; concerns about pyrrolizidine alkaloid content in some Eupatorium species are significant.

Dosage

Traditional decoctions use 3 to 9 grams of dried aerial parts daily. Modern standardized products are uncommon.

When and how to take it

Traditionally taken as needed for symptomatic relief, not chronically.

1 commercial form

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Eupatorium fortunei (pei lan)

Used in Chinese medicine for short-term use.

Decocted.

Safety

Pyrrolizidine alkaloid content is a serious concern with prolonged use. PA toxicity can cause hepatic veno-occlusive disease, which can be fatal. Acute use at traditional doses for short periods is the traditional pattern; long-term use is not recommended.

Who should be cautious

Avoid in pregnancy and breastfeeding (PAs can damage fetal liver and pass into breast milk). Avoid long-term use. Avoid in people with liver disease.

Interactions

Theoretical interactions with hepatotoxic drugs and alcohol. PA-related toxicity can be cumulative.

Frequently asked questions

Is Chinese eupatorium safe?⌄

Long-term or high-dose use carries risk of pyrrolizidine alkaloid toxicity. Use only for short periods and avoid in vulnerable populations.

References

Chinese eupatorium on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Chinese eupatorium (PubMed search) — PubMed link

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.