OMG. I gave him a short acting dose at 3:45. He has not stopped talking since. His brain is going even faster than his mouth, he's stuttering and having a horrible time keeping up with his thoughts and getting frustrated. He's not moving like a crazy man. Sure is talking like one, tho. He is almost obsessive with his Legos. Boy am I glad we didn't try the 12 hour extended release formula. Yikes.