When Bailey first developed pancreatitis, we tried her on it, but she was violently ill from it. At the time she was already pretty sick from the pancreatitis though. She went on prednisolone instead and did great up until the last few weeks. Since pred. can contribute to diabetes, my vet wants her off it so we are trying Atopica again, this time with Cerenia which will hopefully control the vomiting. So far so good, though it has only been two days - in fact, she seems to be much more comfortable, so hopefully it is dealing with the inflammation. The version I got is for cats and is a liquid, so there is no need for compounding. Before I knew that I talked to my compounding pharmacy and was told they have to take special precautions when working with it because of it's autoimmune properties. I think like everything we have to give our sick kitties, there are pros and cons and you have to decide if the pros outweigh the cons. That's what I felt about prednisolone. It improved her pancreatitis so it was worth the risk of possible diabetes. But now that she has it and we've switched foods, Bailey's digestive and other allergic responses make her so clearly uncomfortable that I feel the potential benefit of switching her to Atopica is work the risk of infection etc. I already see a bit of improvement, so for the moment, I am satisfied with the Atopica.