"i have been taking adderall for 5 years in total now, and about a year and a half consistently through a prescription.  my prescription, initially, was for 20 mg of adderall ir twice a day, but after 3 months i had my dosage upped to 30 mg of adderall ir twice a day.  ever since the first day i took a 20 mg adderall xr, i knew i needed it to be productive and successful during my everyday life.  prior to being introduced to adderall, i was kicked out of college for not maintaining a certain gpa, and knew that i needed to get my own prescription to finish college and get my degree.  luckily i did get my prescription, and graduated last year with my b.s, in chemistry.  adderall has changed my life for the better and i couldn&#039;t be happier"