We have decided to try concerta on my son.  He had been on Metadate with a booster of methylphenadate in the afternoon.  Even with the booster, we were not making it to bedtime with out meltdowns.  Our Dr felt Concerta would offer a more stable dosage of medication.  We shall see.  We began the medicine this morning.  There is always a level of anxiety for me every time we make a med change.  Will things get better?  Worse? or stay the same?  Time will tell.