"i&#039;ve been taking concerta for the past five months. when i first began taking it, i would get headaches and appetite problems, but those side effects dissapeared after about three weeks on it. concerta has not only improved the amount of work i&#039;m able to accomplish, its improved my self esteem as well. i no longer feel as shy and cluttered as i did before i started taking concerta. i like that it lasts throughout the entire work day, so i don&#039;t have to worry about redosing. overall, concerta has been a very positive experience for me."