Quercetin for Sinus Relief
Quercetin has plausible mast cell effects for allergic sinus symptoms and weak clinical data.
Overview
Verdict
How It Works
Dosing & Protocol
Typical dose
- Recommended dose
- 500mg twice daily, phytosome or with bromelain
- Expected timeframe
- 4-8 weeks
Protocol
- form
- Bioavailability-enhanced quercetin, since plain aglycone absorption is poor
- duration
- Allergic rhinitis trials ran 4-8 weeks
- co factor
- Evidence is insufficient. Quercetin has documented mast cell stabilising and anti-inflammatory activity in vitro, and small trials in allergic rhinitis and Japanese cedar pollinosis report modest reductions in nasal and ocular symptoms - which is the closest relevant evidence. But no randomised trial has examined acute or chronic rhinosinusitis, sinus pressure, facial pain or mucosal inflammation of the sinuses as an outcome. Allergic rhinitis and sinusitis are distinct conditions with different pathology, and extending rhinitis findings to sinus disease is not supported.
- titration
- Not applicable - no sinus-specific dose-response exists
- starting dose
- Not established for sinus symptoms. Allergic rhinitis trials used 500-1,000 mg/day in divided doses with food
Evidence
What the studies say
No studies are yet linked to both Quercetin and Sinus Relief.
Safety
Caveats
Poorly absorbed unless formulated. Interacts with ciclosporin and some antibiotics.
Less likely to help if
Medical Disclaimer
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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.