I'm 31 years old and have been taking 40mg of adderall per day for about 1 year with the last dose at noon. I go to bed at 10:00PM and sometimes have problems with the drug still in my system. I take the ir adderall. I also sweat more than I did before the drug therapy. Would dexedrine be better since it doesn't have the levo amphetamine. Would it not last as long and I could manage the drug half life more? Would my doctor have a problem using this instead of adderall and are the dosges the same?