Ascorbic Acid / Quercetin
Ascorbic Acid/Quercetin is a dietary supplement combining vitamin C with the flavonoid quercetin. This combination is primarily marketed for antioxidant support and immune health maintenance, leveraging the properties of both ingredients. Ascorbic acid is an essential vitamin important for immune function and collagen synthesis, while quercetin is a plant compound with antioxidant properties found in many fruits and vegetables.
A vitamin C and flavonoid combination supplement marketed for antioxidant and immune support.
Key facts at a glance
- RxNorm
- 1008250
- Generic
- Ascorbic Acid / Quercetin
- Class
- multi-ingredient
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
General antioxidant support and immune health maintenance. Sometimes used as a supplement to support overall wellness and fill nutritional gaps in the diet.
Ascorbic acid (vitamin C) acts as an antioxidant and supports immune function and collagen production. Quercetin is a flavonoid with antioxidant properties. Both ingredients may help protect cells from oxidative damage, though the specific mechanism of this combination is not definitively established.
This is a dietary supplement, not a prescription medication. High doses of vitamin C may cause digestive upset. Quercetin may interact with certain medications including some antibiotics and blood thinners. Consultation with a healthcare provider before use is recommended, especially for those with medical conditions or taking other medications.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy