Chekiang Fritillary

Botanical

What is it

Chekiang fritillary (Fritillaria thunbergii), known in Traditional Chinese Medicine as Zhe Bei Mu, is a bulb used for cough, phlegm, and throat conditions.

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Cough / phlegm

Limited Evidence

Used in TCM for centuries for cough with thick phlegm. Modern clinical evidence is limited and largely from combination formulas.

How it works

The bulb contains isosteroidal alkaloids such as peimine and peiminine, which have antitussive (cough-suppressing) and expectorant activity in animal models. They appear to act partly through modulation of cough reflex pathways and bronchial smooth muscle. Other compounds in the plant include glycosides and saponins with mild anti-inflammatory effects. Clinical evidence is mostly traditional and from small Chinese-language studies. In TCM, Zhe Bei Mu is typically used in combination formulas rather than alone.

Dosage

Traditional decoction uses 3-10 g dried bulb daily. Extracts and granules dose according to product label.

When and how to take it

Short-term use during acute respiratory symptoms, in divided doses with water.

2 commercial forms

Compare the main delivery options and what they’re best suited for.

Zhe Bei Mu (dried bulb)

Traditional TCM preparation.

Alkaloid content varies.

Fritillaria thunbergii extract

Used in modern herbal products.

Standardized to alkaloid content in some products.

Safety

Generally tolerated at traditional doses. Side effects include mild GI upset. High doses of fritillaria alkaloids can be cardiotoxic, with case reports of poisoning from confusion with other Fritillaria species used in cooking.

Who should be cautious

Avoid in pregnancy. People with heart conditions, on antiarrhythmic drugs, or with diarrhea (per traditional contraindications) should avoid. Identify products carefully as related species have caused poisoning.

Interactions

Theoretical interactions with cardiac medications (digoxin, antiarrhythmics) due to alkaloid cardiac activity. Caution with bronchodilators and cough medications.

Frequently asked questions

Is it safe for chronic cough?⌄

Traditional use is for acute respiratory symptoms; chronic cough should be evaluated medically rather than self-treated.

Is it the same as bulb fritillaria in cooking?⌄

No. Several Fritillaria species look similar but differ in alkaloid content; some have caused poisoning.

References

Chekiang Fritillary on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Chekiang Fritillary (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.