Hi, my cat's chronic diarrhea did not respond to metronidazole, but subsided with increased dosage of prednisolone (from 2mg every other day to 5mg everyday). What does that indicate as the cause? Colitis, IBD or IBS? Is 5mg per day of preds too much
Typically cats get really bad vomiting episodes with IBD and occasional diarrhea. The prednisone likely is treating for inflammation or an immune mediated condition of the gut, which can include lymphoma, IBD, or a condition called lymphocytic plasmocytic colitis. At any rate, if the prednisone is helping, then I would continue with therapy as indicated. A lot of the times you can only get a final diagnosis with gut diseases by having a surgical biopsy taken of the intesines. As you can imagine this is a very invasive procedure, so response to therapy is typically the route we taken when making suspected diagnoses. I would also highly consider getting Beau on a hypoallergenic diet to help make it easy for her gut to digest food. My top picks here are Royal Canin hypoallergeic hydrolyzed protein, Hill's Z/D, OR Royal Canin Selected protein (rabbit/potato). Ask your vet for a prescription if interested! I hope this helps and best wishes with your pet Beau and her chronic loose sto
Updated on September 24th, 2025