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Dietary supplement

Arctostaphylos Uva Ursi Ingredients & Drug Interactions

by Wise Woman Herbals

Arctostaphylos Uva Ursi label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Arctostaphylos Uva Ursi 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

Arctostaphylos Uva Ursi is a dietary supplement by Wise Woman Herbals 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. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Arctostaphylos Uva Ursi by Wise Woman Herbals

Ask about any prescription or over-the-counter medication and we check it for interactions with Arctostaphylos Uva Ursi by Wise Woman Herbals — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Arctostaphylos Uva Ursi by Wise Woman Herbals

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 12, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 1 active ingredient.
  • “Proprietary Blend” is a proprietary blend — the label gives one combined amount (3 mL) without saying how much of each component you get.

This product contains one active ingredient: uva ursi, a plant leaf commonly used for urinary tract support. The liquid is delivered in a base of spring water, alcohol, and glycerine.

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.
  • We looked for evidence on: Urinary tract infections (UTIs), urinary discomfort, kidney health, urinary antiseptic.
  • The closest evidence on file: Uva Ursi is rated "Possibly Ineffective" for Urinary tract infections (UTIs) (Natural Medicines).

The evidence for uva ursi is mixed. For urinary tract infections (UTIs), it's rated possibly ineffective — meaning the data doesn't currently support that it works for this use.

For bronchitis and benign prostatic hyperplasia (BPH), there isn't enough reliable evidence to say one way or the other.

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 and for short-term use. The most common side effects are mild: diarrhea, nausea, stomach upset, and vomiting.

At very high doses — 20 grams of dried herb or more — serious effects including convulsions, shortness of breath, and delirium have been reported, and doses of 30 grams or above may be fatal. Uva ursi is likely unsafe in pregnancy because it may stimulate the uterus and lacks safety data.

There isn't enough information to say it's safe while breastfeeding, so it's best avoided. Talk to your doctor or pharmacist before using this product if you're pregnant, nursing, or planning to become pregnant.

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.

Before taking this product, have your pharmacist check if you take lithium (risk of accumulation). Also double-check if you're on any medications metabolized by your liver's CYP2C19 or CYP3A4 pathways, glucuronidated drugs, or urinary acidifying agents — the facts show interactions are theoretically possible, though not yet documented in humans.

If you're unsure whether your medications fall into these categories, run them through the checker below.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with graded evidence leaning against its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Uva ursi is a short-term urinary tract herb, though evidence for UTIs specifically is weak. Because of its potential to interact with liver-metabolized drugs and especially lithium, anyone on prescription medications should check their list before starting.

Stick to short-term use at recommended doses, and talk to your pharmacist if you're pregnant, nursing, or take any regular medications.

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 Feb 21, 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 Arctostaphylos Uva Ursi, straight from the product label.

Brand Wise Woman Herbals
Barcode (UPC) 748840005723
Net contents 2 Fluid Ounce(s); 60 mL
Market status On market
Date entered into DSLD Feb 21, 2023
DSLD ID 284772
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating)
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 Arctostaphylos Uva Ursi by Wise Woman Herbals, 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:
10 Drop(s)
Maximum serving Sizes:
60 Drop(s)
Servings per container
20
UPC/BARCODE
748840005723
IngredientAmount% DV
Proprietary Blend3 mL--
Uva Ursi0 NP--

Other ingredients: spring Water, Alcohol, Glycerine

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.
Suggested/Recommended/Usage/Directions

Suggested use: Shake well. Add 10-60 drops of water, 1-4 times per day.

Formulation

The presence of particulate matter in this product is normal.

Organic alcohol: 35-45%

Botanical formula

Precautions

Caution: Not recommended during pregnancy.

Not recommended for extended use.

Keep out of the reach of children.

Formula

Organic alcohol: 35-45% Herb strength ratio: 1:3.5

FDA Statement of Identity

Dietary Supplement

Storage

Store in a cool, dry area away from direct sunlight with the lid tightly sealed.

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

See for yourself

Arctostaphylos Uva Ursi by Wise Woman Herbals label

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

Arctostaphylos Uva Ursi 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 Arctostaphylos Uva Ursi by Wise Woman Herbals

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

Serving size10 Drop(s) Dosage formLiquid Servings per container20 Amounts shown are per serving.

Proprietary Blend

3 mL per serving

Other (inactive) ingredients: Spring Water, Alcohol, Glycerine. These complete the product’s ingredient list but are not active constituents.

Interaction report

Arctostaphylos Uva Ursi by Wise Woman Herbals Drug Interactions

Want to check YOUR meds against Arctostaphylos Uva Ursi?

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 803

Individual Drug Interactions

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

1 of the 1 ingredient in Arctostaphylos Uva Ursi interact with drugs. Each result below shows which ingredient is responsible. Uva Ursi

Each ingredient & the kinds of drugs it affects

For each ingredient in Arctostaphylos Uva Ursi 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 Ursi6 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 full monograph & interactions
The maker

Brand information

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

Wise Woman Herbals

See all Wise Woman Herbals products
Name
Wise Woman Herbals
City
Creswell
State
OR
ZipCode
97426
Phone Number
541.895.5152
Web Address
wisewomanherbals.com
Pharmacist Counseling Corner

Arctostaphylos Uva Ursi by Wise Woman Herbals: Common Questions

Does Arctostaphylos Uva Ursi by Wise Woman Herbals interact with any medications?
Yes. Based on its ingredients, Arctostaphylos Uva Ursi 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?
Arctostaphylos Uva Ursi 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.
Can I take this while pregnant or breastfeeding?
Uva ursi is likely unsafe in pregnancy — it may stimulate the uterus and there's not enough safety data. There's also not enough information to know if it's safe while breastfeeding. Talk to your doctor or pharmacist for personalized advice if you're pregnant, nursing, or planning to become pregnant.
Will this help my urinary tract infection?
The evidence doesn't currently support that uva ursi works for UTIs — it's rated possibly ineffective. If you think you have a UTI, talk to your doctor about proven treatment options.
What side effects should I watch for?
At normal doses, uva ursi may cause mild stomach upset, nausea, diarrhea, or vomiting. At very high doses, serious effects like convulsions and shortness of breath are rare but have been reported. Stick to the recommended dose and use only short-term.
Is this safe to use long-term?
No. Uva ursi can be toxic with prolonged use or at high doses, so it's meant for short-term use only. Don't take it for extended periods without talking to your doctor.
What is uva ursi actually used for?
Uva ursi is traditionally used for urinary tract support. However, the evidence for its effectiveness is limited — the data available doesn't currently support it works for UTIs, and there isn't enough evidence to rate its use for bronchitis or benign prostatic hyperplasia.

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

Not sure if Arctostaphylos Uva Ursi 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.

Arctostaphylos Uva Ursi label
Go deeper

The Full Monographs Behind Arctostaphylos Uva Ursi’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

Arctostaphylos Uva Ursi'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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