Restore the joy of movement in your senior dog’s every day! natural and efficient support of urinary tract health and functions. Uro-ursi capsules contain such natural substances as cranberry extract, bearberry extract and ester c (improved form of calcium ascorbate) which: lower urine ph levelshave a mild diuretic effect promoting excretion of crystals from the urinary tracthave anti-inflammatory, antiseptic and antimicrobial effects