"adderall xr works wonders. i can finally get my scattered brain to focus on one thing at a time. the downside is that it doesn&#039;t work as long as advertised. i am lucky if it lasts 6 hours, and i work for 8. once i get home, i feel like i&#039;m having a major caffeine crash. i&#039;ve heard that once you adjust to the medication, you stop crashing so hard. i&#039;ve only been on it for one month. "