Does anyone know of any side effects of strattera. My ds aged 10 has been prescribed this to calm him down. At night he gets risperidone to make him sleep he's had this for over a year now so has little effect but because he's extremely hyper always, has now to take strattera during day as well. start at 25mg then upto 40mg. Really worried, as before i gave him concerta and he had every side effect, was like total maniac and as he doesnt communicate i never realised there was a problem and wee soul was hallucinating and everything. Would be great to know in advance of anything to look out for before i start giving him them.