Did they ever give a diagnosis for the diarrhea? Did anything show up in the fecal check? Most likely the prescription food had corn in it, but Royal Canin does have a higher fat content than I prefer. Do you know what the prescription food was and can you check the ingredients?
I would suspect coccidia - it is hard to get rid of and could be the cause of the diarrhea - maybe he needs another round of antibiotics. I would put him on boiled chicken (easy to digest) and cooked white rice (firms the stool) until you can get to the vet for a fecal test. |