I take Concerta, it's the best. Adderall did nothing for me but make it so I can't sleep. I was on 5/10/15mg of the xr for a while and yeah it didn't help at all. Then they had me try 30mg over a weekend and the regulars here can attest to what a nightmare that was. I was having full on hallucinations (yay shadow people!) and didn't sleep for like 4 days straight. The way Concerta is formulated it helps with the ADHD depression and/or the depression side of bipolar (which I've got ADHD and depressive type bipolar, yay lol). Concerta plus lamotragine keep me at a pretty even keel, Concerta helps with my focus and depression and the lamotragine keeps my ups from going full blown manic lol.