"my son is 5 1/2. we&#039;ve always noticed his short attention span, impulsiveness, always in trouble. last year he started preschool, he to has a july birthday. his teacher asked if i had considered holding him back. we decided not to. kindergarten has been a roller coaster. we started seeing his pediatrician about a month into school. he was in time out everyday distracting the class, loud outbursts, not able to sit still. now it is march he&#039;s been taking metadate 20mg for about 3 months, his report cards has improved about 80%. although it does wear off around 2 or 3 in the afternoon we can really see a difference in school. i still am interested in investigating other avenues. overall my son has shown a significant improvement."