"i take this with other meds for my add and mania. now my sentences come together and thought processes, i&#039;m not always fighting to stay awake, i can concentrate on single subjects. waking up in the morning from a night of antipsychotic medication that knocks you out isn&#039;t a problem anymore. would give it a 10 but it looses efficacy over time - moved from 250 mg. am dose to 250 mg as soon as i awake and another 125 mg 4 hours later. otherwise i feel a crash without my 2nd half dose. find a coupon, this is no cheap drug."