Quercetin - 500mg500 mg of quercetin per vegetable capsule, naturally derived from the flowers of the Sophora japonica plant Indicated for mast cell stabilization and antihistamine action to manage and treat allergic and inflammatory responses such as hay fever and non bacterial prostatitis 120 capsules per bottle Allergic rhinitis, more commonly known as hay fever, is the most common form of allergy and manifests as inflammation of the nose and airways following