I am perscribed 30mg ir 3x a day and am always tired to the point I have fallen asleep driving and crashed. I begin to feel alert after 20 mins and at 1 hr I'm usually more energized. I seem to hyper focus on something but still can have racing thoughts. It does help my irratibility and calms my head down somewhat too although I can be much more introverted as well. I don't know if anyone else makes sense of what I said but I have trouble putting my thoughts into words because they are so rapid.