My son will be 4 in November and he is taking the same amount of cortef as your son. However, we are due for an appt next week and that might change. I was curious if your endo felt pleased with his growth etc at that dose. Kyle is a little guy, but not off the charts or anything. He seems to respond well and does not go down hill very quickly when we have had some major incidents (rotavirus and broken leg). Anyway...it is nice to compare notes sometimes!