I think some cats respond well to oral treatment.
I have never been sure whether the cat we had with thyroid problems died of it, as he had a temperature at the time that the vet could find no explanation for. He may too, just have willed himself to die rather than been on medication for the rest of his life.
You never know with cats, do you?
Sorry to be a Job's comforter here, but whatever you do, a fifteen year old cat may just decide that enough is enough.
Is he still enjoying life?
Changing from a Manual car to an Automatic after driving manual for around 50 yrs
