Bladder stones are collections of mineral crystals that combine together in the urinary tract. They can cause discomfort and lead to more serious problems that require the care of a veterinarian. Hill's nutritionists & veterinarians developed Prescription Diet c/d Multicare clinical nutrition specially formulated to support a dog's urinary health and reduce the risk of struvite and calcium oxalate stones. This dry food has an irresistible chicken flavor that dogs will love. How it helps: Formulated to help dissolve struvite stones and lower recurrence risk Lowers risk for formation and recurrence of calcium oxalate stones Helps nourish and maintain a healthy bladder S+OXSHIELD: Formulated to promote a urinary environment that reduces the risk of developing struvite & calcium oxalate crystals Recommended for lifelong feeding of adult dogs How it works: Helps lower concentration of building blocks for bladder stones Controlled calcium, low sodium, & added potassium citrate Fortified with Omega-3 fatty acids to support urinary health