Ah, I have found a kindred spirit, lol. Two years ago I would have been one that told you your son needed a whop on the behind not medication. Now, I completely understand. I haven't medicated my son and still don't know if I will but I believe there are wonderful parents who wouldn't do anything to harm their child who see there is no other option for the time being.
When the anti-drug crowd finds an authority who isn't a certified quack, I'll listen.
"Whip his ass" therapy does not work. I know this well.