"please be very aware of the side effects. i was taking this with no problem for about 6 months, then starting having mini blackouts (10-20 secs). blacked out at the wheel and at work. apparently this is called mircosleeps and is a possible side effect (under somnolence). i also experience the cns stimulation side effects- mostly anxiety and euphoria. i have been off it for 6 months and no issues, but my doctors had no clue it was the medication, until i stopped taking it and the problems went away."