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Dietary supplement

Uva Ursi 350 mg Ingredients & Drug Interactions

by Eclectic Herb

Uva Ursi 350 mg label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Uva Ursi 350 mg 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 350 mg is a dietary supplement by Eclectic Herb with 1 active ingredient. Its ingredients are commonly taken for urinary tract infections, urinary discomfort, mild diuretic.Based on those ingredients, 803 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Uva-Ursi, Freeze-Dried, Fresh. 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 350 mg by Eclectic Herb

Ask about any prescription or over-the-counter medication and we check it for interactions with Uva Ursi 350 mg by Eclectic Herb — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Uva Ursi 350 mg by Eclectic Herb

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 Jul 11, 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: uva ursi (bearberry leaf), freeze-dried and fresh, at 350 mg per capsule. Uva ursi is a plant used traditionally to support urinary tract health.

The capsule shell is made from hypromellose, an inactive ingredient that holds the herb inside.

Does it work?

No specific claim
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
General wellness

This Uva Ursi product is marketed for general wellness, not a specific health condition, so there's no single claim to grade — see Uva Ursi's own graded uses on its monograph.

Why this rating?
  • The label markets general wellness (“Antioxidant support”), not a specific health condition, so there is no single claim to grade against clinical-evidence data.

The evidence for uva ursi is mixed. For urinary tract infections, it's rated possibly ineffective—meaning the data doesn't show it works well for that purpose.

For bronchitis and benign prostatic hyperplasia (enlarged prostate), there simply isn't enough reliable evidence to know either way. If you're taking this for a specific urinary or respiratory condition, talk to your pharmacist or doctor about whether the science supports it for your situation.

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-term use, but there are important limits. Common side effects at normal doses include diarrhea, nausea, stomach upset, and vomiting.

At high doses (20 grams of dried herb or more), it can cause serious effects like confusion, convulsions, shortness of breath, and ringing in the ears; doses of 30 grams or higher may be fatal. Don't use this long-term without medical supervision, as it can become toxic with prolonged use.

The safety data advises against uva ursi during pregnancy—it may stimulate the uterus and there isn't enough safety information. There's also not enough data on breastfeeding, so it's best avoided while nursing as well.

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: 804 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.

Check your exact medications before taking this product if you use lithium (mood disorders), any heart or blood pressure drugs, anticonvulsants, blood thinners like warfarin, antidepressants, immunosuppressants, or drugs that acidify your urine. These are Moderate-severity concerns based on how uva ursi is processed in your body, though the effects haven't been confirmed in humans.

Your pharmacist can look up your specific drugs in the tool below.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula marketed for general wellness rather than one specific gradeable purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Uva ursi is traditionally used for urinary tract support, but the evidence it works well for UTIs is limited. If you take any prescription medications—especially heart drugs, blood pressure medicines, anticonvulsants, blood thinners, antidepressants, or lithium—check them against this product before starting.

Stick to short-term use at the dose on the bottle; prolonged or high-dose use isn't safe. Pregnant or breastfeeding?

Skip this one.

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 Jul 18, 2023.

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 350 mg, straight from the product label.

Brand Eclectic Herb
Barcode (UPC) 023363309023
Net contents 90 Veg Cap(s)
Market status On market
Date entered into DSLD Jul 18, 2023
DSLD ID 294907
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, Gluten Free, Dairy Free
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 350 mg by Eclectic Herb, 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:
1 Capsule(s)
Maximum serving Sizes:
3 Capsule(s)
Servings per container
90
UPC/BARCODE
023363309023
IngredientAmount% DV
Uva-Ursi, Freeze-Dried, Fresh350 mg--

Other ingredients: Hypromellose

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.
Formula

Antioxidant Whole herbs

100% kosher.

Formulation

Raw Naturally concentrated' US grown

Gluten free Non GMO

Vegan

Freeze dried fresh for peak plant power Freeze-drying is the best method of preservation as it naturally concentrates the nutrients in the plant by removing only the water.

Nothing artificial - no fillers or additives.

Concentrated 2 X through freeze-drying

General Statements

Our aronia berries are locally grown and fresh freeze-dried in-house in small batches. @eclecticherb

FDA Disclaimer Statement

This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested use: Take 1-3 capsules per day.

Precautions

Keep out of reach of children.

Discontinue use if unusual symptoms occur.

Consult your health care advisor regarding herbs with pregnancy, infants or prescription drugs.

Consult your health care advisor regarding herbs with pregnancy, infants or prescription drugs.

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

See for yourself

Uva Ursi 350 mg by Eclectic Herb label

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

Uva Ursi 350 mg 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 350 mg by Eclectic Herb

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

Serving size1 Capsule(s) Dosage formCapsule Servings per container90 Amounts shown are per serving.

Uva-Ursi, Freeze-Dried, Fresh

Interacts with
803 drugs
350 mg 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...

Uva-Ursi, Freeze-Dried, Fresh monograph & interactions

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

Interaction report

Uva Ursi 350 mg by Eclectic Herb Drug Interactions

Want to check YOUR meds against Uva Ursi 350 mg?

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
803Drugs
740 Moderate 63 Minor

Ingredients driving the most interactions

Uva-Ursi, Freeze-Dried, Fresh 803

Individual Drug Interactions

The ingredients in Uva Ursi 350 mg interact with 803 drugs. Click any drug to see the details.

1 of the 1 ingredient in Uva Ursi 350 mg interact with drugs. Each result below shows which ingredient is responsible. Uva-Ursi, Freeze-Dried, Fresh

Each ingredient & the kinds of drugs it affects

For each ingredient in Uva Ursi 350 mg 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.

Uva-Ursi, Freeze-Dried, Fresh6 drug types · 803 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
Uva-Ursi, Freeze-Dried, Fresh full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Uva Ursi 350 mg, from the product label.

Eclectic Herb

See all Eclectic Herb products
Name
Eclectic Herb
Street Address
755 NE 6th St.
City
Gresham
State
Oregon
ZipCode
97030
Phone Number
503.668.4120
Web Address
www.eclecticherb.com
Pharmacist Counseling Corner

Uva Ursi 350 mg by Eclectic Herb: Common Questions

Does Uva Ursi 350 mg by Eclectic Herb interact with any medications?
Yes. Based on its ingredients, Uva Ursi 350 mg has a known interaction with 803 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Uva Ursi 350 mg 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.
What is uva ursi used for?
Uva ursi is a plant traditionally used to support urinary tract health. However, the evidence it actually works well for urinary tract infections is limited. There's also not enough reliable evidence to know if it helps with bronchitis or enlarged prostate.
What are the side effects?
At normal doses, the most common side effects are diarrhea, nausea, stomach upset, and vomiting. At very high doses (20 grams or more of dried herb), serious effects can occur including confusion, convulsions, and shortness of breath. Keep to the recommended dose and don't use long-term without medical supervision.
Is it safe to use while pregnant or breastfeeding?
No. The safety data advises against uva ursi during pregnancy because it may stimulate the uterus and there isn't enough safety information. There's also not enough data on breastfeeding, so it's best avoided while nursing.
Can I use this long-term?
Uva ursi is meant for short-term use only. It can be toxic with prolonged use or at high doses, so don't take it long-term without medical supervision.
Why does it matter if my urine is acidic or alkaline?
Uva ursi appears to work best when your urine is alkaline (less acidic). If you take medications that acidify your urine, they may reduce uva ursi's effects on the urinary tract.

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

Not sure if Uva Ursi 350 mg 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 350 mg label
Go deeper

The Full Monographs Behind Uva Ursi 350 mg’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 803 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 350 mg'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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