Uva Ursi: Arctostaphylos uva-ursi L. (Bearberry Leaf) Tr 1:3 45%

Botanical Name

Arctostaphylos uva-ursi
(Family: Ericaceae)

Plant Part Used: Dried leaf

Overview

Uva ursi (bearberry leaf) is a powerful urinary antimicrobial herb traditionally used for short-term treatment of uncomplicated UTIs and bladder irritation. While effective, it must be used carefully and briefly, as long-term use may cause liver or kidney stress. 

Uva ursi is a traditional urinary tract herb valued for its antimicrobial, astringent, and anti-inflammatory actions. It has a long history of use for uncomplicated urinary tract infections (UTIs) and bladder inflammation. The leaf contains arbutin, which converts to hydroquinone, a potent antimicrobial compound—this is also why safety considerations are essential.

Key Actions

Urinary antiseptic / antimicrobial

Astringent (tones and tightens mucosa)

Anti-inflammatory

Mild diuretic

Primary Uses

Acute uncomplicated UTIs (short-term use only)

Cystitis

Urethritis

Uva ursi is typically used for short-term, targeted treatment and not as a daily tonic herb.

Use for no more than 7–10 consecutive days. Do not exceed 5–6 weeks total use per year.

Safety & Cautions
⚠️ Important: Uva ursi is for short-term use only.

The hydroquinone produced from arbutin can be irritating or harmful if taken long-term or in high doses.

Avoid in Kidney disease (may irritate kidneys) or severe liver disease

Gastrointestinal irritation or ulcers

Drug Interactions

Use caution with:

Diuretics

NSAIDs (may increase kidney stress)

Medications metabolized by the liver

Urine-acidifying drugs or supplements (e.g., vitamin C in high doses)

Do not combine with other herbs or drugs that irritate the kidneys.

Always increase water intake during use.