ROYAL CANIN Veterinary Diet feline URINARY SO is designed specifically for cats. The URINARY SO formula will ensure that the production of a urine undersaturated with struvite and with a level of calcium oxalate saturation at which spontaneous homogeneous crystallization will not occur. ROYAL CANIN Veterinary Diet feline URINARY SO is for cats with or at risk of developing feline lower urinary tract disease. Dry format: Dissolve pure struvite uroliths Helps prevent the formation of struvite uroliths Helps minimize the risk of formation of calcium oxalate Helps minimize the risk of formation of brushite uroliths ROYAL CANIN Veterinary Dietâ„¢ feline URINARY SO Dry Chicken meal, rice, corn gluten meal, ground corn, chicken fat, natural flavors, cellulose powder, sodium chloride, dried brewers yeast, dried egg powder, potassium chloride, calcium sulfate, monosodium phosphate, choline chloride, calcium carbonate, taurine, DL-methionine, vitamins [DL-alpha-tocopherol (source of vitamin E), niacin, biotin, riboflavin (vitamin B2), D-calcium pantothenate, pyridoxine hydrochloride (vitamin B6), thiamine mononitrate (vitamin B1), vitamin B12 supplement, vitamin A acetate, vitamin D3 supplement, folic acid], trace minerals [zinc oxide, ferrous sulfate, copper sulfate, manganous oxide, sodium selenite, calcium iodate], preserved with natural mixed tocopherols, rosemary extract, and citric acid. ROYAL CANIN Veterinary Dietâ„¢ feline URINARY SO is formulated to meet the nutritional levels established by the AAFCO Cat Food Nutrient Profiles for adult maintenance. Animal feeding tests using AAFCO procedures substantiate that ROYAL CANIN Veterinary Dietâ„¢ feline URINARY SOâ„¢ provides complete and balanced nutrition for the maintenance of adult cats. The canned product contains 1211 kilocalories/kilogram or 200 kilocalories per can ME (metabolizable energy) on an as fed basis (calculated).Value Not Found.Best Sellers Rank: See Top 100 in Pet Supplies. Item Form: Dry. Target Species: Cat. Age Range Description: Adult. Flavor: Value Not Found. Brand: Royal Canin. : B005WXAADW. Manufacturer: Royal Canin. Date First Available: October 18, 2011. Item model number: 470777. Product Dimensions: 9.84 x 2.76 x 9.84 inches; 7.7 Pounds. Is Discontinued By Manufacturer: No.