The feed additive Cystocur in the form of tablets is used to maintain the genitourinary system in dogs and cats with urinary tract infections. Cystocur has its own properties due to the presence of the incoming components in an optimal combination. Orange bioflavonoids, in particular hesperidin and rutin, in addition to antioxidant activity and the ability to increase intracellular vitamin C levels, have a beneficial effect on capillary permeability and blood flow.