PURINA VETERINARY DIETS UR is an appetizing & nutritionally complete clinical diet, expertly formulated to treat struvite stones. Canine UR Urinary Formula is carefully designed to encourage more acidic urine, aiding in the dissolution and prevention of kidney stones.Suitable for treating bacterial-associated struvite stones alongside a course of antibiotics as well as sterile struvite stones. Because dogs suffering with struvite stones can feel especially delicate and may lose their appetite, Canine UR is specially tailored to be mouth wateringly delicious to help your furry patient to cooperate.Please note, PURINA VETERINARY DIETS UR is not suitable for pregnant mums, growing puppies, dogs being treated with urine acidifiers, or dogs with non-struvite urolithiasis.Ingredients: maize, maize gluten meal, rice, dehydrated poultry proteins, wheat, animal fat (preserved with mixed tocopherols), liver digest, beet pulp, dried whole egg, potassium chloride, fish oil, calcium sulphate, sodium chloride, choline chloride, L-lysine hydrochloride, minerals.