Feline Inappropriate Elimination Behavior

My 16 year old female (spayed) cat has been diagnosed by the vet with inappropriate elimination behavior. I think (and the vet agrees) that she may be (1) grieving for a companion who died 1 1/2 years ago, and (2) she is upset about the two young cats who were brought in to the house as kittens after her companion died. Right now, I am starting another round of treatment with Ovaban and considering consulting an animal behaviorist. I truly don't want her last years to be miserable. She is also being treated for arthritis with Cosequin and for a stomach ailment with Metoclopramide. HELP! I don't want her to be so depressed, and I am getting real tired of cleaning up cat pee (She pees just outside the box and is starting to defecate just outside the box). Any suggestions?

Since she is 16 and has arthritis she probably just can't squat low enough to aim inside the box. Try getting a really big box so that even if she can't squat her pee/feces won't land outside the box. If you go to the Care and Grooming forum and look a few lines down you will find a string about really big litter boxes.

By the way....did your vet tell you about the VERY dangerous side effects of ovaban? An extremely common side-effect of ovaban in cats is severe diabetes. My friend's cat was on ovaban and died within a month of beginning the medication. Since reading up on this medication I have found that the rates of very severe diabetes is alarmingly high.