Hill's Prescription Diet u/d Urinary Care Dry Dog Food. Developed to aid in the reduction of urate, oxalate and cystine uroliths formation in dogs with problems associated with urolithiasis.
Hill's Prescription Diet z/d Food Sensitivities Dry Dog Food. Developed to ensure that your dog's food sensitivities and intolerances are supported. Proven to reduce skin and digestive signs from food intolerances.