The question of whether or not Concerta and other ADHD medications causes tics is a complex one. ADHD and tic disorder often occur together, so when
tics occur in someone on a medication
for ADHD, there is no clear way to know if the tics occurred because of the medication or if they would have occurred anyway, in due time. When the tics resolve after discontinuation of the medication, then a medication-induced tic disorder becomes clearer to diagnose.