Considering the high number of boys prescribed ritalin, that could turn into huge numbers!
Off topic, but I did a search on ADD and ADHD and military eligibilty one day. They have to be off the meds for one year prior to enlistment.
I have also seen where a young man, as good as they come, was diagnosed with ADHD or somesuch and forced to take Ritalin, and as a direct result now he can't even get into the miltary because of his previous prescription to the drug. Sounds like a typical big-government operation to me!
Of course, the end-game to this sort of legislation is the eventual "consensus" among the "psychiatric community" that you're mental unbalanced just to want to own a gun, and it's Catch-22 time.