I'm not sure if anyone knows if there is an exact amount per child, but when I was pregnant I was told that I shouldn't worry because I couldn't eat too many Tums. I think I saw someone else post a similar response. Just to be safe though, I would ask my ped endo. S/he shouldn't have a problem because it has the calcium and sodium that our CAH children are lacking in. You do want to ask if there would be any blood pressure issues for your child. For my child, I give him 2 - 3 per day. He likes the Tropical Fruit ones. As Wendy-Lee said though, perhaps you should let them have their meds first because it may hinder absorption. I will ask my endo next Friday about that.