Just want to add my support to stimulants setting off tics. How doctors can say its just a coincidence that tics start up a week or so after stimulants are begun, it's a joke. No wonder there's so much tourettes these days. (A rare condition? Hardly!) One of the hard things seems to be that everyones different. its too bad your child fell into that one to two percent with severe reactions. sure wish you the best.