Thank you for responding to my inquiry. I was hoping that you could give me a little more guidance. I have been giving my cat CS for about a week. After I read your reply I doubled the amount I was giving her. The litter that I use that detects whether there is infection present shows that she still has an infection. Do you have any advice as to how muchI should be giving her for a severe UTI and how long it might take for it to clear up? Thanks for any help/info you can give me. I really want to get my poor baby off the Antibiotics .