Hill's Prescription Diet c/d Multicare Urinary Care Stress Chicken & Vegetable Stew is clinical nutrition specially formulated to maintain your cat's stress, support your cat's urinary health, and lower the recurrence of most common urinary signs by 89%. It Promotes desirable urine pH levels and has controlled levels of magnesium, calcium, & phosphorus and is Enriched with antioxidants, potassium citrate & Omega-3 fatty acids and recommended for a lifelong feeding of adult cats. This product requires a veterinary prescription.