I read an article in my local newspaper that the FDA recently approved of a new way to treat childhood ADHD: a transdermal patch containing methylphenidate. The patch was devoloped by Noven pharmaceuticals. Shire teamed up with Noven in testing the safety and effectivness of the patch. The original verdict was that the patch caused severe side effects (tics, twitching, insomnia, etc.) which were intolerable. After further review, however, the FDA approved the patch, saying it was indeed a safe and effective form of treatment. The patch might be marketed under the brand name "Daytrana", according to the article.
I did a quick search on google and found this from November '05: