Bearberry (Herbs/Suppl)

Brand and Other Names:arbutin, arctostaphylos uva ursi, more...mountain cranberry, uva ursi
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Suggested Dosing

Dried herb

1.5-4 g PO qD

Tea

One cup of tea PO QID

Steep 3 grams dried leaf in 150 mL cold water for 12-24 hours and then strain

Fluid extract (1:1 in 25% alcohol)

1.5-4 mL PO TID

Hydroquinone derivative, calculated as water-free arbutin

100-210 mg PO QID

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Suggested Uses

Urinary tract antibacterial, astringent

Efficacy

Possibly effective for urinary tract inflammation

Currently is not clear if extended use is safe, tell patients not to use long-term

More evidence is needed to support use for UTI's

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Interactions

Interaction Checker

and Bearberry

No Results

     activity indicator 
    No Interactions Found
    Interactions Found

    Contraindicated

      Serious - Use Alternative

        Significant - Monitor Closely

          Minor

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            Adverse Effects

            Nausea, vomiting, greenish-brown urine

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            Warnings

            Contraindications

            Renal impairment

            Cautions

            WARNING: urine must be alkaline for efficacy

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            Pregnancy & Lactation

            Pregnancy Category: unsafe

            Lactation: N/A

            Pregnancy Categories

            A:Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.

            B:May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk.

            C:Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done.

            D:Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk.

            X:Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist.

            NA:Information not available.

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            Pharmacology

            Metabolism: N/A

            Excretion: N/A

            Mechanism of Action

            Arbutin, tannins, hydroquinone: antimicrobial, astringent

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