[Gracie2006]

I don't have experience with UTI in dogs, but I have had cats with UTIs. As I recall, things started to quiet down within 3-5 days. If no better after a week, I would call the vet and see if they want to try a different antibiotic as symptoms should be much better by then. When the meds are finished, insist on a repeat UA just to make sure the infection was gone. My cat's symptoms went away after 3-5 days on the antibiotic but at two weeks, he still had bacteria and had to be put on a different antibiotic.