I take adderall daily and ntice a huge difference in my POTS symptoms when I don't take it. It doesn't make me hyper or cause my heart to beat faster than it usually does but it does allow my brain to be clear. On days I don't take it, usually the weekends my POTS symptoms are much worse. Like any drug there are pros and cons and all medication should be monitored closely by your Dr. This medication is the only reason I still continue to work and excercise. Tiffiny