[anonymously]

I meant to say I used Royal Canin So for a dog with bladder stones (hx of both struvite and oxalate).
I used Royal Canin Renal support for my dog that had kidney damage.

Both times the food agreed with them and no adverse effects were noted. Once the dogs were stable (after at least a year) I made changes in their diets under the supervision of their veterinarians. However, the dog with kidney damage stayed on the prescription food for the remainder of her life and did as well as could be expected.