I had a cat that had IBS her whole life, and the poor thing was just miserable without her meds (
prednisolone injections and occasional antibiotics). Nutrical is excellent for putting weight on
cats that are in health crises. Most of them just love the taste of it, as well, so much so that they will lick it right out of the tube. It's sold in most vets' offices, however it's also available at places like PetSmart, and it's considerably cheaper at PetSmart.