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Dietary supplement

Uva Ursi (Bearberry) Ingredients & Drug Interactions

by TerraVita

Uva Ursi (Bearberry) label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Uva Ursi (Bearberry) against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Uva Ursi (Bearberry) is a dietary supplement by TerraVita with 1 active ingredient. Its ingredients are commonly taken for urinary tract infections, urinary discomfort, mild diuretic.Based on those ingredients, 804 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Bearberry Glycerite Liquid Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Uva Ursi (Bearberry) by TerraVita

Ask about any prescription or over-the-counter medication and we check it for interactions with Uva Ursi (Bearberry) by TerraVita — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Uva Ursi (Bearberry) by TerraVita

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Sep 24, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: Bearberry Glycerite Liquid Extract (also called Uva Ursi). Glycerin is included as an inactive ingredient to preserve and deliver the extract.

Bearberry leaf has been used traditionally for urinary tract support, though its effectiveness is limited—the science doesn't support its use for preventing or treating urinary tract infections.

Does it work?

Leans against
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Leans against

The strongest graded evidence we hold for the stated purpose leans against a benefit.

Why this rating?
  • The label markets this product for: urinary tract health support.
  • We looked for evidence on: Urinary tract infections (UTIs), urinary discomfort, kidney health, bladder support.
  • The closest evidence on file: Uva Ursi is rated "Possibly Ineffective" for Urinary tract infections (UTIs) (Natural Medicines).

The evidence for bearberry is weak. For urinary tract infections (UTIs), it's rated possibly ineffective, meaning the science doesn't back up its use for that purpose.

For bronchitis and benign prostatic hyperplasia (enlarged prostate), we don't have enough reliable evidence to say whether it works or doesn't.

The evidence, ingredient by ingredient Uva Ursi

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Uva ursi is generally well tolerated at low doses for short periods. The most common side effects—nausea, vomiting, diarrhea, and stomach upset—are mild.

However, high doses or long-term use can be toxic; at very high doses (20 grams or more of dried herb), it may cause serious effects like tremors, rapid heartbeat, delirium, and shortness of breath, and doses of 30 grams or more have been reported as potentially fatal. During pregnancy, the safety data advises against use because it may stimulate the uterus.

While breastfeeding, there isn't enough safety information available, so avoid it. Talk with your doctor or pharmacist before using this product if you're pregnant, planning to become pregnant, or breastfeeding.

Side effects, ingredient by ingredient Uva Ursi

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Uva Ursi.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: lithium.
  • For scale: 805 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking this product, double-check with your pharmacist or doctor if you take any medications metabolized by CYP2C19 or CYP3A4 enzymes (a large group that includes many antidepressants, antihistamines, and immunosuppressants), drugs cleared through glucuronidation, lithium, or urinary acidifying agents. You should also verify any P-glycoprotein substrate medications.

These are just categories—your pharmacist can look up your specific drugs.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with graded evidence leaning against its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Bearberry is not recommended for urinary tract infections based on current evidence, and it can interact with a large number of medications through effects on how your liver and kidneys clear drugs. It's also not safe in pregnancy or while breastfeeding, and high or prolonged doses carry serious risks.

If you're considering it, check all your medications with your pharmacist or doctor first.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Dec 13, 2022.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Uva Ursi (Bearberry), straight from the product label.

Brand TerraVita
Barcode (UPC) 064434280445
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Dec 13, 2022
DSLD ID 279389
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Uva Ursi (Bearberry) by TerraVita, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
25 Drop(s)
Maximum serving Sizes:
40 Drop(s)
Servings per container
227
UPC/BARCODE
064434280445
IngredientAmount% DV
Bearberry Glycerite Liquid Extract0.13 mL--

Other ingredients: Glycerin

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Brand IP Statement(s)

Copyright 2005 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Formula

Glycerite liquid extract (1:5)

Formulation

Alcohol free

No flavor

Suggested/Recommended/Usage/Directions

Suggested Use: Take 25-40 drops of extract in a small amount of warm water 3-4 times daily. Shake well before using.

Precautions

Keep away from children.

Do not use if safety seal around cap is broken or missing.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Uva Ursi (Bearberry) by TerraVita label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Uva Ursi (Bearberry) label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Uva Ursi (Bearberry) by TerraVita

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size25 Drop(s) Dosage formLiquid Servings per container227 Amounts shown are per serving.

Bearberry Glycerite Liquid Extract

Interacts with
804 drugs
0.13 mL per serving

Uva ursi is a traditional herb used mainly for urinary tract infections, and its leaves contain a compound called arbutin that may have antimicrobial...

Bearberry Glycerite Liquid Extract monograph & interactions

Other (inactive) ingredients: Glycerin. These complete the product’s ingredient list but are not active constituents.

Interaction report

Uva Ursi (Bearberry) by TerraVita Drug Interactions

Want to check YOUR meds against Uva Ursi (Bearberry)?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
804Drugs
742 Moderate 62 Minor

Ingredients driving the most interactions

Bearberry Glycerite Liquid Extract 804

Individual Drug Interactions

The ingredients in Uva Ursi (Bearberry) interact with 804 drugs. Click any drug to see the details.

1 of the 1 ingredient in Uva Ursi (Bearberry) interact with drugs. Each result below shows which ingredient is responsible. Bearberry Glycerite Liquid Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Uva Ursi (Bearberry) with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Bearberry Glycerite Liquid Extract6 drug types · 804 drugs

Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, uva ursi may decrease the metabolism of CYP2C19 substrates.
In vitro, uva ursi appears to inhibit cytochrome CYP2C19. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, uva ursi may decrease the metabolism of CYP3A4 substrates.
In vitro, uva ursi appears to inhibit CYP3A4. This effect has not been reported in humans.

Likelihood Possible Evidence D
Glucuronidated Drugs

Theoretically, uva ursi may increase levels of drugs metabolized by glucuronidation.
In vitro, uva ursi extract appears to strongly inhibit UDP-glucuronosyltransferase (UGT) 1A1 (UGT1A1). However, uva ursi extract does not appear to inhibit UGT1A1 in animal models. This effect has not been reported in humans.

Likelihood Possible Evidence D
Lithium

Theoretically, uva ursi may increase lithium levels, necessitating a decrease in dose.
Uva ursi may have diuretic properties. Diuretics may increase lithium reabsorption with sodium in the proximal tubule of the kidney. Theoretically, uva ursi might reduce excretion and increase levels of lithium.

Likelihood Probable Evidence D
Urinary Acidifying Agents

Effects of uva ursi in the urinary tract may be reduced by urinary acidifying agents.
Uva ursi seems to work best in alkaline urine. Theoretically, taking uva ursi with medications known to acidify the urine may decrease any effects of uva ursi on the urinary tract.

Likelihood Possible Evidence D
P-Glycoprotein Substrates

Theoretically, uva ursi may alter the levels of drugs transported by P-glycoprotein.
In vitro, uva ursi appears to inhibit the multi-drug transporter protein, P-glycoprotein. This effect has not been reported in humans.

Likelihood Possible Evidence D
Bearberry Glycerite Liquid Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Uva Ursi (Bearberry), from the product label.

TerraVita

See all TerraVita products
Name
ZooScape LLC
Phone Number
844-449-0444
Web Address
www.ZooScape.com
Pharmacist Counseling Corner

Uva Ursi (Bearberry) by TerraVita: Common Questions

Does Uva Ursi (Bearberry) by TerraVita interact with any medications?
Yes. Based on its ingredients, Uva Ursi (Bearberry) has a known interaction with 804 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Uva Ursi (Bearberry) contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is bearberry actually effective for urinary tract infections?
Not according to the evidence we have. Bearberry for UTIs is rated possibly ineffective, meaning the science doesn't support its use for treating or preventing urinary tract infections. If you suspect a UTI, talk with your doctor about proven treatments.
What are the most common side effects?
At low doses and short-term use, bearberry is generally well tolerated. The most common side effects are nausea, vomiting, diarrhea, and stomach upset. If you experience any of these, stop taking it and tell your pharmacist.
Can I take this while pregnant or breastfeeding?
No, the safety data advises against use during pregnancy because it may stimulate the uterus. While breastfeeding, there isn't enough safety information available. Talk with your doctor or pharmacist before using this product in either situation.
How long can I safely take this product?
Bearberry should only be used short-term. Long-term or high-dose use can be toxic and cause serious effects. Talk with your pharmacist about how long is safe for your situation.
What is the glycerin in this product?
Glycerin is an inactive ingredient used to preserve and deliver the bearberry extract. It's a common solvent and preservative in liquid supplements.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Uva Ursi (Bearberry) is safe with your meds?

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Uva Ursi (Bearberry) label
Go deeper

The Full Monographs Behind Uva Ursi (Bearberry)’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Uva Ursi

Interacts with 804 drugs

Uva ursi is a traditional herb used mainly for urinary tract infections, and its leaves contain a compound called arbutin that may have antimicrobial effects in the urine. Evidence in people...

Read the full Uva Ursi monograph →
Sources

Sources & How We Checked

Uva Ursi (Bearberry)'s label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 8 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Uva Ursi 8 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Schulz V, Hansel R, Tyler VE. Rational Phytotherapy: A Physician's Guide to Herbal Medicine. Terry C. Telger, transl. 3rd ed. Berlin, GER: Springer, 1998.
  3. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  4. Wang L, Del Priore LV. Bull's-eye maculopathy secondary to herbal toxicity from uva ursi. Am J Ophthalmol 2004;137:1135-7. PubMed
  5. Beaux, D., Fleurentin, J., and Mortier, F. Effect of extracts of Orthosiphon stamineus Benth, Hieracium pilosella L., Sambucus nigra L. and Arctostaphylos uva-ursi (L.) Spreng. in rats. Phytother.Res 1999;13(3):222-225.
  6. de Arriba SG, Naser B, Nolte KU. Risk assessment of free hydroquinone derived from Arctostaphylos Uva-ursi folium herbal preparations. Int J Toxicol. 2013;32(6):442-453.
  7. Park JB, Kim D, Min JS, et al. Identification and characterization of in vitro inhibitors against UDP-glucuronosyltransferase 1A1 in uva-ursi extracts and evaluation of in vivo uva-ursi-drug interactions. Food Chem Toxicol. 2018;120:651-661. PubMed
  8. Chauhan B, Yu C, Krantis A, et al. In vitro activity of uva-ursi against cytochrome P450 isoenzymes and P-glycoprotein. Can J Physiol Pharmacol. 2007;85(11):1099-107.

See these in context on the Uva Ursi monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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