Guanfacine
"My 4 year old was put on a quarter of a 1MG pill. Take in the mornings. He's been on it for little over a month, at first I kind of saw a little bit of a difference but then things took a dramatic turn! He became very mean, aggressive towards everyone, hitting,biting pushing and crying all the time.:(   his emotions all over the board and he him self could tell.. he would say he donesn't feel right. So we took him off it. I'm not sure if this pill just did not mash well with him case of his age but I will never recommend this pill for a toddler with adHD"