Quercetin & Rutin Supplements
Be aware that quercetin might reduce the effectiveness of some antivirals, including an antiviral in Paxlovid used to treat COVID-19. Get the details in the Concerns and Cautions section of our Quercetin Supplements Review, which includes information about other potential interactions with quercetin, as well as our Top Picks among quercetin supplements.
Also see our CL Answer about Supplements for COVID-19.
Did quercetin improve nasal and eye symptoms among people with seasonal allergies in recent study? Find out in the Seasonal Allergy section of our Quercetin Supplements Review.
Is it more cost effective to get quercetin from food (as rutin) than supplements? See our answer in the Quercetin Review.
Twenty out of 24 brands of quercetin purchased on Amazon contained much less quercetin than listed in a recent analysis. For details by brand, see the Quality Concerns section of our Quercetin Review.