Concerta
"I'm 21 and I've been taking 72mg (two 36mg barrels) a day since I was about 17. Concerta changed my life. I was failing school and no matter how hard I tried, it didn't change anything. I became depressed, slept for 14+ hours a day, I gave up. Then I was prescribed and it changed my life. It keeps me focused, motivated, and energized. Though, the side effects are very real. I don't sleep much, which is why I usually don't take it on weekends to catch up on sleep. It kills my appetite, so I eat a big breakfast before I take it in the mornings. It does elevate my anxiety, and not saying it's something I suggest.. but I smoke cigarettes to help that. Oh, and I don't know if this is common or not.. But it keeps my digestive track regular!"