Purina Veterinary Diets UR Urinary Ox/St Formula promotes a urinary environment unfavorable for the development of both calcium oxalate and sterile struvite stones. Purina UR Canine also promotes the production of urine that is under-saturated for sterile struvite stones and metastable for calcium oxalate stones, based on RSS and APR tests. It is specially formulated with high protein and low carbohydrate levels
Purina Veterinary diets are rebranding to Purina Pro Plan Veterinary Diets. Therapeutic diets will maintain their same exclusive formulas, only the name and packaging are changing.