Well, after 6 days on Baytril Sluggo is doing much better! He's finally using the litter box again and no more signs of blood in his urine. This stuff works miracles. I'm also giving him Cosequin everyday as suggested by my vet. She still believes Sluggo's problem has to do with his bladder and that is why we'll continue with the Cosequin long after his 14 days of Baytril is done. We just need to get rid of the infection he has going on first. Also, I had changed Sluggo's food to the Natural Balance Venison and Green Pea allergen free formula because he has a very sensitive tummy and it is working wonders! No more diahrea for Sluggo! And he LOVES the stuff too! So, I'm a happy kitty momma once again. Best wishes to all of you out there with the same problem, I know how frustrating it is!