I would start at least two weeks before. Like mom2adhdboy says, you may be able to start lower than he was on before then increase if needed.
Good luck! Glad your summer went so well. I hope you guys have a better school year.......................
I took my DS (13 this summer) off of his meds on July 1 so I could get a feel for how he does without meds (he has been on meds since he was 5 1/2 without any med breaks). ANyway, he did great (we also made some dietary changes that I believe have been beneficial) but we both know he needs to be back on meds for school. HOw many weeks before school starts would you start the meds again. I'm still working on dietary changes so I hate to start sooner than necessary but I definitely want to make sure he is where he needs to be med-wise when school starts. He will be going back on Concerta which he has been on for years.
Thanks!