Does anyone have any ideas what OTC petfoods to use for cat that develops UTI's? My cat has been on this prescription food for about a year..the only problem is that it is very expensive. A 7.7 pound bag runs about 30.00 a month. I tried to ask the vets office and they weren't much help. I read some discussions online about it, and they recommended a few different brands that cost even more than the Royal Canin I am using. I guess a good quality wet food grain free would be good. Can anybody help?