Royal Canin Feline Urinary S/O Moderate Calorie Adult Dry Food is formulated to combat lower urinary tract disorders. It is used for the dietary support of adult cats and its moderate calorie content makes it particularly suitable for cats in which ideal weight is hard to maintain (neutering / overweight / low activity). Indications Dissolution of struvite uroliths Prophylaxis of calcium oxalate uroliths Prophylaxis of struvite uroliths Key benefits Struvite dissolution - Urinary S/O Feline effectively dissolves struvite stones. Moderate calorie - The reduced calorie content of the diet makes it possible to limit weight gain in cats with a tendency to obesity. Urine dilution - Diluting urine decreases the urinary concentration of struvites and calcium oxalates. The larger urinary volume also ensures regular bladder wash-out. Helps lower the concentration of ions contributing to crystal formation Note: The wet version of Urinary S/O Feline is recommended for recurrent idiopathic cystitis.