Methylphenidate
"My son (7 years old now) was diagnosed with ADHD last year and was started on 10mg of Metadate. We've slowly progressed to 60mg now which I was told is the maximum dosage available for this medication.  It seems to work fine on a new dosage for about a month and then nothing.  Our doctor is now talking about putting him on Adderall which makes me a little nervous since he is already underweight (been reading all the side effects).  He is only 49lbs and 49inches.  We're feeding him Pedisures daily to help boost the weight but still to no avail. Just want my son to be able to focus in school!"