Yes, I have read that from many adult CAH people and on the Addison's board about how crummy the adults feel when they don't taper down, some people have said "not tapering" even makes them feel worse than the original matter they took extra for (hmmm ...).   Also think that some people have posted about taking even 2 weeks to taper down, and that if they don't do it that way, they feel crummy.  I taper Amanda's down by doing 1/4 less tablet every 2-3 doses.  For example, if she was on a triple dose of 3 tablets, then it would be 2 3/4 tablets for 2-3 doses; then 2 1/2 tablets for 2-3 doses; then 2 1/4 tablets for 2-3 doses.  I know this sounds like a whole lot of cortef to be given during the tapering period, but until Amanda is older and can come to her own conclusions about how she needs to taper down, am just going to listen to what the adults say about gradually tapering down.