Wait a sec where are you right now diagnostically? I ask because you generally don't put a cat on Prednisilone (in the context we're discussing) unless you suspect IBD usually because the cat is loosing weight and not responding to other therapies. If it's working you can expect weight gain in a week or so (maybe measured only in a few ounces, baby scale at home is important) but gain is gain, and if you get weight gain, then the cat is [probably going to be on Pred a very long time, possibly for life or at least for as long at it is giving your cat remission.Anyone know how long I should expect to want to see results from prednisolone? Today is day 3 of 5 mg and the vet wants to start tapering down tomorrow. But she's still not better, only really eats with a lot of prompting and since yesterday an appetite stimulant, still meatloafs after eating, still has diarrhea.....
If it's working and your vet suspects IBD, i don't have any idea why he/she would want you to start tapering so soon. If its working, its saving your cat's life.