Royal Canin - Veterinary Diet Urinary Low Purine Dry Food for Dogs - 2KGAuthorization for Veterinary Use: Kindly seek advice from your personal family veterinarians before acquiring any prescription products. Complete dietetic food for dogs formulated to reduce the formation of urate and cystine stones through its low level of protein and purine, its high quality protein, its moderate level of sulfur amino acids and its urine alkalinizing properties. RC develops tailor made nutritional programs designed to provide the