Can any doc explain why can't i sleep while taking adderrall?

Time of dose matters: If you are not taking the long acting form of Adderall (dextroamphetamine and racemic amphetamine) then it is possible that your are taking Adderall (dextroamphetamine and racemic amphetamine) tow late in the day if yhou are taking it in the evening the effect of Adderal may be preventing you from sleeping when you want to go to sleep. It usually recommended that Adderall (dextroamphetamine and racemic amphetamine) not be taking after 5 pm. This is done so the effects of Adderall (dextroamphetamine and racemic amphetamine) will not interfere with your going to sleep