Quercetin is the flavone aglycone (non-sugar-bound) form of the polyphenolic flavonoid rutin. Quercetin is the major bioflavonoid in the human diet and an antioxidant for the maintenance of good health. Fights Allergies and Inflammation - Helps regulate the histamine response providing relief from allergies - Reduces pain and inflammation - Promotes cardiovascular health - Pure high dose quercetin Amount: 1 Capsule Quercetin 500 mg Non-medicinal ingredients: microcrystalline cellulose. Capsule: hypromellose. Suggested Use: (Adult): Take 1 capsule twice daily with food or as directed by a qualified health care practitioner. Cautions : Consult a health care practitioner prior to use if you are pregnant or breastfeeding or for use beyond 12 weeks.