It sounds like you really need to speak to his doc about this. I know it takes weeks for meds to kick in but I think you should have seen some sort of change in him. Give them a call and see what they suggest.
I'll be thinking bout ya hun ,
Yeah I know where your coming from , but unfortunately the only person who can assess how much benifit the meds are giving is the person who is taking them. And along with that , every case is individual , your son will react differently to the med than Mr.X , and need a different dose than Mrs.Y - unfortunately it's down to trial and error. BUT I know you and your son will get through this - never give up , you'll get to that happy place - I'm cheering you both on
Hang in there , and know we are here for you.