"i was prescribed this medicine, 40mg twice a day. i read a lot of information before deciding to take this. i am a 40 year old black female and have had struggles for many years while in school. i decided to go back to school and also tried this to see if there was a difference. it takes a while before you notice a change in the ability to focus. when earning my 1st degree, i struggled in school, probably all my life. while on strattera, i could sit and study for hours and not be distracted. i went from struggling to earn c&#039;s maybe a b, to earning a&#039;s and maybe a b. i actually understood what i was studying and didn&#039;t feel like doing 3-4 other things at the same time. i stopped taking it because of an ekg that showed an irregular heart beat. a side effect."