Concerta
"Unbelievable! I think and concentrate much better , focus, it does effect for men a little down below, but it makes you focus so you are very hi libido. Men know what I am talking about. It is great for that you mind does not wonder.  I've only been on it for a week, it works immediately. And yes you worry because you can see things so good, and you are not used to it. So I get scared, that should go away. try it. you don't like, try something else, controlled substance, hard to get. Psychiatry will get this for you, and you need prior authorization depending on insurance."