Yes, you're right about this Makyla...but it's impossible to know at any one moment what the cortisol levels are. My horse appears to be doing well with the pergolide, but sometimes he still acts as though his cortisol levels are running higher. He just seems more reactive than in years past...maybe there's not so much excess cortisol as to be causing major symptoms, but still his chemistry is not quite normal.
I'm glad Karen Briggs is updating her article on Cushings. I'll be looking for it. Kay in AK