About six months ago, Quincey my almost 15 year old neutered male cat started marking various places around the house. My vet has done blood work to rule out diabetes, thyroid, kidney and liver malfunction. Quincey's spraying episodes are always preceded by an almost lost circling of the house. I have tried putting him in the room with the litter boxes when I see him start this aimless wandering, but that doesn't seem to help. He is currently taking prednisone for arthritis in his back legs, which has lessened the frequency of his inappropriate urinating but hasn't eliminated it completely. He always uses the litter box to defecate, so I am at a loss as to why he sometimes chooses other places to urinate. I have a number of younger cats and although they generally leave him alone, I was wondering if this could be some kind of symptom age induced anxiety. I read some of the threads about buspirone, but it sounds like it may be too potent for an older cat. Any advice would be greatly appreciated.....