Royal Canin Veterinary Diet Feline Urinary SO 33 Dry Food (16.5-lb bag)

Royal Canin Veterinary Diet Feline Urinary SO 33 (dry) and Urinary SO in gel (canned) are complete and balanced diets for adult cats that have been formulated to aid in the management of feline lower urinary tract disease (LUTD). Cats often suffer from lower urinary tract disorders that affect the ureter, the bladder or the urethra. One of the most important causes is the development of urinary tract stones, which typically consist of struvite (composed of magnesium, ammonium, and phosphate) or calcium oxalate (composed or calcium and oxalate).