Is there anyone out there who has a child with side effects after...

Is there anyone out there who has a child with side effects after being off this drug for several months? Our 9 year old boy had such horrible side effects and now even off seems to still not be able to control his emotions. He gets angry so easily and has problems in school with friends and staying focused. He cries a lot still and has lost all his confidence in any decision making. He was never like this before taking this drug. It appears that it is taking him longer to get it out of his system or he has permanent damage. We are so concerned. All doctors tell us it takes 2 to 4 weeks to remove this drug from your body. Our son was only one this for 5 weeks and was very sick.