Liam is 8.5yrs and he is on 20mg a day. He gets 15mg in the morning and 5mg in the evening. He doses have not changed for 3.5 years now. Age is not important as far as I am aware but the body volume in relationship to height and weight that is key. He is 132cm and 37kg and his growth has been consistant on the growth charts for years now. He also has always been on the pill form of hydrocortisone so we have never had to deal with the changes many of you on the board are dealing with. Shaun P.