I need to find a new effective medication used to treat adhd in adults?

Stimulants remain : The same 2 classes, amphetamines & methylphenidates. Interestingly, you might do well on vyvanse, (lisdexamfetamine) the "pro-drug" preparation of adderall, even if you're not having optimal results on maximum doses of Adderall xr. Of the non-stimulants strattera is approved for adults for adhd; Intuniv will be, soon, & i'm not sure about capvay. It takes ~4 weeks to know if these are working for you. Best of luck!

Get eval: There are several good medications but each has to be matched to the characteristics of the patient, and sometimes it requires the use of a primary medication plus a second "adjunctive" medication. This can only be determined by working with your health care provider. Good luck!