Condition
    Moderate Evidence
    Effectiveness 3/5

    Quercetin for Prostatitis

    Quercetin is the best-studied supplement in chronic pelvic pain syndrome, with two positive randomised trials — a genuine evidence-based adjunct for the most common and most treatment-resistant form of prostatitis.

    Overview

    Quercetin is the best-studied supplement in chronic pelvic pain syndrome, with two positive randomised trials — a genuine evidence-based adjunct for the most common and most treatment-resistant form of prostatitis.

    Verdict

    Mixed evidence

    How It Works

    Quercetin's anti-inflammatory and mast-cell stabilising actions target the pelvic inflammation and nerve sensitisation implicated in CPPS. It reduces cytokine activity in prostatic tissue in laboratory studies.

    Dosing & Protocol

    Typical dose

    Recommended dose
    500 mg twice daily with food
    Expected timeframe
    4-6 weeks

    Protocol

    form
    Quercetin, alone or in a bioflavonoid formulation containing bromelain and papain, as used in the prostatitis trials
    duration
    4 weeks, then reassess with the NIH-CPSI score
    co factor
    Take with food, away from meals containing large amounts of fibre. Evidence is mixed: a small randomised trial in chronic pelvic pain syndrome found 500 mg twice daily improved NIH-CPSI scores compared with placebo, with a higher response rate when combined with bromelain and papain, but the trial was small and has not been convincingly replicated.
    titration
    Stay at 1000 mg/day; this is the dose that was tested
    starting dose
    500 mg quercetin twice daily

    Evidence

    What the studies say

    Two randomised placebo-controlled trials (Shoskes et al.) of quercetin 500 mg twice daily in CPPS showed significant symptom-score improvements versus placebo — small trials, but unusually direct evidence for a supplement in this condition. CPPS is driven by pelvic floor dysfunction and nerve sensitisation rather than infection, which is why antibiotics fail and multimodal care (including pelvic floor physiotherapy, with its own RCT support) is the framework.

    No studies are yet linked to both Quercetin and Prostatitis.

    Safety

    Caveats

    Generally well tolerated; possible headache at high doses. Acute prostatitis with fever is an antibiotic emergency — quercetin is for the chronic non-bacterial pattern only.

    Less likely to help if

    Men with bacterial prostatitis needing antibiotics, and those whose pain is pelvic floor dysfunction.

    Medical Disclaimer

    The information provided on this website is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before starting any supplement regimen.

    Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.