Ok so my 4 year old tuxedo cat won’t use the litter box. We’ve had to throw out a couch and 2 rugs. Now he is using our good carpeting. We’ve had him to the vet multiple times. He had a urinary tract infection and went on antibiotics. Helped for a few days then right back to the carpet. We’ve added litter boxes, changed to a different litter. Tried changing his food. Now he is on Prozac. Again he went right back to the carpet. Obvisously this is a behavior problem. What do we do???? I’m ready to get rid of the cat. I just want to try everything I can first. Thank you for the help! I’m desperate!!