I was prescribed adderall ir 30mg twice daily. The 30mg is controlling my symptoms, but only lasting 2-3 hours at most. So if I switched to the XR, it is recommended to take the 2 30mg at the same time in the morning. Which seems to me would be the same as taking the IR 30mg in the morning and the other 30 4 hrs later. Then having no coverage later in the day. Wouldn't it be better to take the XR in the am and the other XR around 2pm? I am almost positive that for me, the XR will not last the full 8-10 hrs. Anyone with any experience with this, I'd appreciate your opinions.