My husband and I just inherited an older, fixed, cat that had also begun a nasty habit of urinating on EVERYTHING including filing cabinets, furniture, floor vents, and luggage. From what I had read, it said that if you completely cleaned up the urine and put a cat food dish with their food in that area they would stop. It didn’t work.
After a week of finding Kitty’s favorite spots and having to clean up after him I finally took Kitty to the vet to make sure there was nothing physically wrong with him. He checked out fine. The vet suggested that this was a psychological condition and put Kitty on a low dose of valium. While this definitely decreased the number of areas being sprayed it didn’t eliminate the problem. The vet changed Kitty’s medication to 5 mg of Amitriptyline (half a tablet). The problem is now eliminated and Kitty is much happier now that I am not yelling at him.
I wish you all the luck.
Cris