Identity & origin
BOTANICAL IDENTITY
The right name is the first step.
A tightly restricted traditional use, exclusively in adult women after a serious cause has been medically ruled out.
Also known as: bearberry
The botanical name, part and preparation must match. A photograph is not enough for identification intended for consumption.
An illustration is not enough to identify a plant for consumption. Do not forage for a species based solely on this profile.
Uses & evidence
UNDERSTANDING THE USES
Properties & uses.
Mild recurrent urinary symptoms
Traditional use in adult women for symptoms of mild recurrent lower urinary tract infections after medical exclusion of serious causes. It does not replace indicated antibiotics or treat kidney infection.
Use considered plausible in a traditional-use monograph. That status alone does not demonstrate clinical efficacy.
Read the sourceThe traditional uses described are not clinical proof of effectiveness. Evidence for one preparation cannot automatically be applied to another.
Precautions before use
BEFORE ANY USE
Precautions & contraindications.
This guidance does not cover every individual situation. Missing information is not a guarantee of safety.
Contraindications & precautions
- Source-listed contraindicationAllergy to the plant or preparation: contraindication.Source
- Source-listed contraindicationKidney disease: contraindication.Source
- PrecautionFever, painful urination, spasms or blood in urine require medical assessment; do not delay infection diagnosis.Source
- PrecautionAdult women only after medical exclusion of serious causes. Maximum one week; seek advice if symptoms persist after four days or worsen. Use in men is not recommended without medical supervision.Source
Medicine interactions
- No interaction reported in the sourceNo interactions are reported in the source for the assessed preparations. Evidence is limited; compatibility with medicines is not guaranteed.Source
“Reported” does not prove causality; “possible” may reflect indirect evidence. “None reported” means none in the cited source, not that all combinations have been studied. Do not stop a prescribed treatment based on this profile.
Adverse effects
- Nausea, vomiting and stomach pain have been reported.
Pregnancy & breastfeeding
Medicinal use is not recommended during pregnancy or breastfeeding because evidence is insufficient; missing evidence establishes neither harm nor safety.
SourceChildren & adolescents
Not recommended below 18: urinary symptoms require medical assessment.
SourceIf symptoms persist, worsen or are unusual, consult a healthcare professional. In an emergency, contact the emergency services.
Forms & how they are used
DOCUMENTED FORMS
One plant, several preparations.
Only forms documented in this profile’s sources are presented.
Herbal teaLeaves · Route: oral
Dried, comminuted leaves.
Please note: Use for no longer than one week. Consult if symptoms last more than 4 days or worsen.
Read the sourceDry extractLeaves · Route: oral
Solid form with a defined extract.
Please note: Use for no longer than one week. Consult if symptoms last more than 4 days or worsen.
Read the sourceUnderstanding the plant’s actions
EXPLORE THE EVIDENCE
How does the plant act?
Bearberry leaf is traditionally used for certain mild, recurrent urinary symptoms in adult women, after a serious cause has been excluded. An antimicrobial hypothesis exists, but it is not sufficient to regard it as a plant-based antibiotic. The EMA’s 2025 update examines more recent trials that require particular caution about promises of replacing antibiotics.
Constituents to know.
Their presence and quantity depend on the plant part and preparation.
- Arbutin and tannins
- Arbutin is a hydroquinone derivative. Its quantity varies; the leaves also contain tannins. The transformation of constituents matters as much as their presence.Read the reference
Hypothesis of urinary antibacterial activity
Hydroquinone released from arbutin is a proposed explanation based on experiments. This does not establish clinical eradication of infection.
Laboratory or animal observation. A human benefit cannot be inferred from this finding alone.
Read the referenceTargeted traditional relief
The monograph does not extend this use to men, children or every urinary tract infection. Severe symptoms require different care.
Use considered plausible in a traditional-use monograph. That status alone does not demonstrate clinical efficacy.
Read the referenceWhat this means for preparation.
Arbutin content does not guarantee a clinical benefit. Prior assessment of symptoms, the exact form and the limited duration of a product are decisive.
Studies, findings & limitations
THE RESEARCH
What the research shows.
A laboratory or animal result alone does not demonstrate a benefit in humans. Each result must be read alongside the preparation studied and its limitations.
ATAFUTI and REGATTA trials
A human study may be positive, negative or inconclusive. Read the findings, preparation and limitations.
- Type of research
- EMA 2025 addendum: randomized controlled trials in women.
- Preparation concerned
- Leaf extracts, distinct from an uncharacterized herbal tea.
- Observed results
- ATAFUTI, 382 participants: no demonstrated difference in symptom severity versus placebo. REGATTA did not demonstrate non-inferiority to fosfomycin.
- Limitations to consider
- These results do not justify replacing an indicated antibiotic with bearberry.
What can we take from this?
Laboratory activity does not justify a prolonged preventive course. Metabolism into hydroquinone and toxicological uncertainties contribute to the restrictions on use.
Documentary review dated 09/10/2026. The references remain available to check the context.
Sources & last review
CHECKING REFERENCES
Sources for this profile.
- EMA — Uvae ursi folium: official dossierAccessed on 09/10/2026
- EMA — assessment report on Arctostaphylos uva-ursi (L.) Spreng. (Leaves)Accessed on 09/10/2026
- EMA — addendum to the assessment report on Arctostaphylos uva-ursi (L.) Spreng. (Leaves)Accessed on 09/10/2026
- EMA — Arctostaphylos uva-ursi, folium, final revision 2Accessed on 09/10/2026
Image: Flora von Deutschland, Österreich und der Schweiz — Otto Wilhelm Thomé (1885), via Wikimedia Commons · Public domain. View the original image and its licence. Image resized and converted to WebP.
