When younger DD's meds wear off, she goes back to the "old" problematic behavior. They are often a bit worse. Initially, they were a LOT worse, but I think that has subsided. But honestly, I think it may feel worse because we're now so used to the new behaviors!
And to update our meds saga, Concerta was a disaster. She was up after midnight and one night until 2 am!!!
After a few weeks of trial and error, we have a good regimen though.
In the morning, she takes 10 mg Metadate CD (similar to Ritalin LA) + 5 mg generic short acting Ritalin. At lunch at school, she takes another 5 mg short acting Ritalin. This gets her through the school day easily. By the time I pick her up at 5:30, it's pretty well worn off. On the weekends, we have better success with her taking the second dose at 2. That gets her through dinner and she can still sleep at night.
Beth, mom to older DD (8/01) and younger DD (10/06) and always missing Leah (4/22 - 5/1/05)