Our Doctor increased our son's dose to 36 mg and switched it to the generic form. He has been taking it for a month and his mood swings have worsened. Should we pay the extra for the real Concerta? He is 11 years old and has been taking Concerta for 2 years now with no side effects. His attention span had been dropping as he approached middle school and the doctor suggested increasing his dose. I'm very concerned the generic form is causing the mood swings.