Hi Sarah,
My daughter is on Seroquel. Her doctor started her out with a 50 mg. am dose and a 100 mg. pm dose. She is 15 yrs. old so although this is what my doc calls a beginning dose, it would probably be alot for a 6 yr. old. I have been very happy with the medication and we have not had any trouble with sleepiness during the day. Maybe if your other doctor switches the dose to lighter in the am and the larger dose in the pm it might help. Medications really suck until you find a set that works and get the dosing right. She's only been there (stable) 2 times and weight gain caused us to have to stop them. We seem to be heading back to a good place with the seroquel. Hang in there, I am sure you will find a doc that will take better care of your son.
Gina, mom of Ashley 15 BP, seroquel, lithium, trileptal and wellbutrin.