Prednisone does stimulate the adrenal gland, which is why they have you taper off it. I don't know what sort of effect it might have on performance. (I have tak

Prednisone does stimulate the adrenal gland, which is why they have you taper off it. I don't know what sort of effect it might have on performance. (I have taken it to clear up bad rashes, with edema, from poison ivy.)