Quercetin Side Effects
Generic name: bioflavonoids
Medically reviewed by Drugs.com. Last updated on Jan 28, 2022.
Note: This document contains side effect information about bioflavonoids. Some of the dosage forms listed on this page may not apply to the brand name Quercetin.
Applies to bioflavonoids: oral capsule
Side effects not requiring immediate medical attention
Some side effects of bioflavonoids (the active ingredient contained in Quercetin) may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.
Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
- Blurred vision
- dull ache or feeling of pressure or heaviness in legs
- fluid accumulation in the knee
- itching skin near damaged veins
- pounding in the ears
- red or scaling skin
- slow or fast heartbeat
- swollen feet and ankles
Frequently asked questions
More about Quercetin (bioflavonoids)
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Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Some side effects may not be reported. You may report them to the FDA.