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Uva Ursi

Traditional urinary antiseptic herb containing arbutin, specifically used for urinary tract infections and bladder health

Scientific nameArctostaphylos uva-ursi FormulaC12H16O7 Molecular weight272.27 g/mol CAS497-76-7
70 absorption score
6 safety / 10
30 USD per month
5 documented interactions

Check it against something

Evidence level B

Uva Ursi with:

Compatibility score 78 out of 100
78 out of 100
Works better together Compatible. Timing differs, so follow each supplement's own window.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Urinary tract infection treatment

Traditional treatment for urinary tract infections and cystitis

Arbutin converts to hydroquinone in alkaline urine providing antimicrobial effects Evidence B-grade 2-7 days

UTI prevention and recurrence reduction

May help prevent recurrent urinary tract infections

Antimicrobial compounds create unfavorable environment for bacterial growth Evidence B-grade 2-6 weeks

Bladder health and soothing

Soothes and supports overall bladder health and function

Anti-inflammatory effects reduce bladder irritation and inflammation Evidence C-grade 3-10 days

Urinary antiseptic action

Provides natural antiseptic effects throughout urinary system

Hydroquinone release in urine creates antimicrobial environment Evidence B-grade 4-24 hours

Kidney and urinary cleansing

Traditional cleansing support for kidneys and urinary tract

Diuretic and antimicrobial effects help cleanse urinary system Evidence C-grade 1-3 weeks

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Every pair we checked

12 combinations scored by the engine
Uva Ursi + Vitamin D3 May acidify urine reducing effectiveness Needs attention 52
Uva Ursi + Caffeine No documented interaction either way No known interaction 70
Uva Ursi + Creatine Monohydrate No documented interaction either way No known interaction 70
Uva Ursi + Calcium Carbonate No documented interaction either way No known interaction 70
Uva Ursi + Whey Protein No documented interaction either way No known interaction 70
Uva Ursi + Lactase No documented interaction either way No known interaction 70
Uva Ursi + Bovine Collagen No documented interaction either way No known interaction 70
Uva Ursi + DHA No documented interaction either way No known interaction 70
Uva Ursi + Turmeric No documented interaction either way No known interaction 70
Uva Ursi + Fish Oil (EPA/DHA) No documented interaction either way No known interaction 70
Uva Ursi + D-Mannose Comprehensive UTI treatment and prevention Works better together 75
Uva Ursi + Cranberry Extract (Kidney Health) Enhanced UTI prevention and treatment effects Works better together 78

Dosage

With alkalizing foods
Daily400-800mg
Uti treatment400-800mg daily for 7-10 days
Uti prevention400mg daily intermittently
Bladder support400-600mg daily short-term
Urinary cleansing400mg daily for 1-2 weeks

Before you take it

VeganYes

When to expect it

First Effects4-24 hours for urinary antiseptic effects
Peak Benefits2-7 days for UTI treatment, 2-6 weeks for prevention
Deficiency DevelopmentNot applicable - herbal supplement
Toxicity OnsetPossible with prolonged use beyond 7-10 days

How to measure it

$40-80
MarkerLiver enzymes (ALT, AST) if using for more than 7 days
OptimalNormal liver function markers
Deficient belowNot applicable for herbal supplement
FrequencyMonitor liver function if extended use needed

What people actually reported to the FDA

CAERS, 2 reports naming it as the suspect

Most reported effects

Blood pressure increased 1
Dysgeusia 1
Ear haemorrhage 1
Retinal degeneration 1
Retinal disorder 1
Named as the suspect 2 reports of 3 that mention it at all
Serious outcome 67% hospitalisation, emergency room or worse
Other Serious or Important Medical Event2
Visited a Health Care Provider1

Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →

What actually reaches you

The label counts the carrier, your body does not
Absorption High 70 of 100 · absorbs well relative to other forms
Delivered daily 420 mg
Cost per 100 mg delivered $0.24 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented
+
Cranberry

Enhanced UTI prevention and treatment effects

Both provide anti-adhesion and antimicrobial effects against UTI bacteria · level B
+
D Mannose

Comprehensive UTI treatment and prevention

Complementary mechanisms for preventing bacterial adhesion · level C
+
Alkalizing Agents

Essential for optimal antimicrobial activity

Alkaline urine required for arbutin conversion to active hydroquinone · level A

What not to take with Uva Ursi

2 documented
!
Acidifying Agents

Prevents effective antimicrobial activity

Acidic urine prevents arbutin conversion to active hydroquinone · high significance
!
Vitamin C High Doses

May acidify urine reducing effectiveness

High dose vitamin C can acidify urine preventing arbutin activation · moderate significance

Medication interactions

Discuss these with a pharmacist before combining
lithium Moderate

May affect lithium elimination

What to do: Monitor lithium levels carefully

nsaids Minor

May increase risk of kidney irritation

What to do: Monitor kidney function

urine-acidifying-medications Moderate

Reduces effectiveness of uva ursi

What to do: Avoid concurrent use or separate timing

Available forms

bioavailability compared
Uva Ursi Leaf Extract (Standardized 20% Arbutin) 70

Uva Ursi Leaf Extract (Standardized 20% Arbutin): Proven UTI treatment, Strong antimicrobial, Traditional use, Good research

Food sources

before you supplement
Uva ursi tea Moderate arbutin content · 60
Standardized leaf extracts Concentrated arbutin (20%) · 70
Fresh or dried leaves Variable arbutin content · 50
Not found in common foods Specific plant preparation required · N/A

Too little

deficiency signs
  • Not applicable (herbal supplement, not essential nutrient):
  • General symptoms addressed by uva ursi:
  • Recurrent urinary tract infections
  • Chronic bladder irritation and inflammation
  • Frequent urinary tract bacterial issues
  • Poor urinary tract resistance to infection
  • Chronic cystitis and bladder discomfort

Too much

toxicity signs
  • Concerns with prolonged use (>7-10 days):
  • Liver enzyme elevation and potential hepatotoxicity
  • Nausea, vomiting, and severe digestive upset
  • Green-brown urine discoloration
  • Tinnitus (ringing in ears)
  • Convulsions (rare, with severe overdose)

Who benefits most

urinary-tract-infections

Traditional and clinically supported treatment for UTIs and cystitis

400-800mg daily for 7-10 days maximum
recurrent-uti-prevention

May help prevent recurrent urinary tract infections

400mg daily for prevention cycles
bladder-irritation-inflammation

Soothing support for bladder irritation and inflammation

400-600mg daily short-term
urinary-tract-health-general

General urinary tract health and cleansing support

400mg daily (intermittent use)
kidney-cleansing-detox

Traditional kidney and urinary system cleansing

400mg daily for 1-2 weeks

Where to buy it

compare forms first

Look for Uva Ursi at 400-800mg per serving. The form that matters here is Uva Ursi Leaf Extract (Standardized 20% Arbutin).

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How it works

  • Arbutin converts to hydroquinone in alkaline urine providing antimicrobial effects
  • Hydroquinone acts as natural antibiotic against urinary tract bacteria
  • Anti-inflammatory compounds reduce bladder and urinary tract irritation
  • Astringent tannins provide tissue-toning effects on urinary tract
  • Diuretic action helps flush bacteria and toxins from urinary system
  • Requires alkaline urine pH (>7.0) for optimal antimicrobial conversion

Key findings

what the evidence supports
  • Clinically proven effective for urinary tract infections
  • Strong traditional use evidence spanning centuries
  • Requires alkaline urine for optimal antimicrobial activity
  • Short-term use only due to potential liver toxicity

Sources: NIH Examine.com · data reviewed 2026-08-02

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of Uva Ursi?

Documented effects: Urinary tract infection treatment; UTI prevention and recurrence reduction; Bladder health and soothing; Urinary antiseptic action. Traditional treatment for urinary tract infections and cystitis

How much Uva Ursi should you take per day?

The common daily range is 400-800mg. By goal — uti treatment: 400-800mg daily for 7-10 days; uti prevention: 400mg daily intermittently; bladder support: 400-600mg daily short-term; urinary cleansing: 400mg daily for 1-2 weeks.

When is the best time to take Uva Ursi?

With alkalizing foods. First effects are typically reported within 4-24 hours for urinary antiseptic effects.

What are the side effects of Uva Ursi?

At excessive doses: Concerns with prolonged use (>7-10 days):, Liver enzyme elevation and potential hepatotoxicity, Nausea, vomiting, and severe digestive upset, Green-brown urine discoloration, Tinnitus (ringing in ears). Safety rating at normal doses is 6 out of 10.

What should you not take with Uva Ursi?

Separate it from Acidifying Agents, Vitamin C High Doses by two to four hours. Prevents effective antimicrobial activity

Does Uva Ursi interact with medications?

Documented interactions with lithium, nsaids, urine-acidifying-medications. Discuss these with a pharmacist before combining.

How do you know if you need Uva Ursi?

The marker is Liver enzymes (ALT, AST) if using for more than 7 days, optimal range Normal liver function markers. Common deficiency signs: Not applicable (herbal supplement, not essential nutrient):, General symptoms addressed by uva ursi:, Recurrent urinary tract infections, Chronic bladder irritation and inflammation.

Taken for