Hill's Prescription Diet - Dry Cat Food - Feline c/d Multi Urinary Care - 8.5LBPrescription Diet c d Multicare Feline Urinary Stress is formulated with the following benefits: Formulated with ingredients to help manage stress Clinically tested to dissolve struvite uroliths in as little as 7 days (Average 27 days) Rich in fish oil an excellent source of Omega 3 fatty acids to help promote healthy skin and a shiny coat Controlled sodium, magnesium, and phosphorus levels for bladder health Antioxidants to promote a healthy immune