My friends cat has chronic flutd and she gives him this:
http://www.nativeremedies.com/petali...=350&kbid=2562

She has to give it to her cat almost all of the time. She says they went back & forth to multiple vets for years trying all sorts of things they prescribed. Nothing seemed to work... at least long term. She heard about this product, tried it & it works. A couple months ago she went out of town on vacation & the pet sitter forgot to give it to him for more than a week & sure enough the uti came back again. She started giving him his regular dose of this stuff the night she came home & by their vet visit the next morning he was starting to get better already. Her vet now recommends it to their clients.
I don't know if that will help you but that's all I really know about it. If there's something specific you want me to ask her for you I can just let me know. Good luck.