I took a urine sample from The Piss to the vet today because she's begun peeing all over my house again. She doesn't have a UTI, but she has a TON of struvite crystals. She said she hasn't begun forming bladder stones yet, fortunately. However, I need to feed her a prescription diet for the rest of her life. I said, "please don't say it's Science Diet," and the vet tech made a face and said "we don't even sell that here." So I'm feeding Purina UR, which is crazy expensive and has the awesome first ingredient of corn gluten meal. I'm paying $27 for an 8lb bag of corn.
Please tell me there is something comparable health-wise but better nutrition-wise that I can switch her to after this first bag. Or am I stuck feeding Purina to her forever?