Hi Alison, now that you've explained that part, yes, in Cairo's case that does make sense to me to hold off. He does seem to be especially sensitive to the medication and who knows, he may be one of those dogs for whom cortisol production never again rebounds to a problematic level. This doesn't necessarily mean he did not have Cushing's to begin with, but instead it could be that the Vetoryl he took has altered his adrenal function and natural production of cortisol. So before beginning treatment again, Dechra and your vets may be awaiting both diagnostically high numbers re: his cortisol as well as the reappearance of clinical symptoms. Hopefully, he'll still have a long vacation from treatment ahead of him!

Marianne