Cubeb

BotanicalBest with a meal

What is it

Cubeb (Piper cubeba) is a tropical pepper relative whose dried unripe fruit is used as a spice and a traditional remedy for urogenital and respiratory complaints.

Evidence for 1 use

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

Urinary / respiratory (traditional)

Mixed Evidence

Use is based on historical herbalism. Modern clinical trials specifically on cubeb are not available.

How it works

Cubeb contains essential oil components such as cubebin, cubebene, and sabinene. Cubeb essential oil has been historically used as an antiseptic and expectorant; modern in vitro studies show antimicrobial and anti-inflammatory activity, but high-quality human clinical evidence is sparse. In supplements, cubeb is often used in small amounts as a flavoring or traditional herbal component.

Dosage

There is no RDA. Traditional doses of dried fruit are around 1-3 g; supplement amounts vary. DSLD does not provide a median dose for this entry.

When and how to take it

Take with food when used as a supplement. No specific time of day required.

1 commercial form

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

Cubeb fruit powder / extract

Used as a spice and in liquid herbal extracts.

Essential oil and lignan content varies.

Safety

Generally well tolerated at culinary doses. Higher amounts of the essential oil can cause GI irritation, kidney irritation, and headaches.

Who should be cautious

Avoid in pregnancy and breastfeeding at therapeutic doses; culinary use is fine. Caution in kidney disease and chronic UTI workups.

Interactions

No major clinically documented interactions. High-dose essential oil could theoretically interact with kidney-cleared medications.

Food sources

Cubeb (spice)

Amount
varies
%DV
—

Frequently asked questions

Is cubeb the same as black pepper?⌄

They are related but distinct species, with different essential oil profiles and traditional uses.

Can it treat a UTI?⌄

Historical use exists, but cubeb is not a substitute for antibiotic treatment of bacterial UTIs.

References

Cubeb on Wikidata — Wikidata link

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

Research on Cubeb (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.