Amphetamine / dextroamphetamine
adhd
"ADD is NOT a made up condition. I'm 26.  Without Adderall/Vyvanse, i have no mental energy or focus to do anything. And it has been this way my entire life. School has gone from being an F and D student to being an A and B student. It has nothing to do with "being lazy" and everything to do with having a real chemical imbalance in the brain. Anyways, have been full time for 2 years until 7 weeks ago I convinced myself it wasn't working anymore and I didn't need it. Big mistake! I am ready to start up again next week. I can feel the old me come back, the me I hated. If you truly have ADD/ADHD, this will change your life for the better. 

Some negatives are sleeping less, decreased apatite, and often weak erections on it (despite high libido)"