Dextroamphetamine
"Was switched from Adderall XR to generic Dexedrine. I got an ineffective brand of Adderall (yes, some brands are better than others). The positive effects were gone and the negative effects were enhanced. My blood pressure was great, around 102-117 systolic and 75-85 diastolic but my pulse was way too high 110-130. For the most part I loved Dexedrine, it worked very well and without the L-Amphetamine in Adderall my pulse rate was good 85-102. My only complaint was that the length of time it worked was inconsistent. Some days it would last 45 min other days it would last 2 hours. After speaking to my psych doc we decided to switch to Vyvanse instead of having to take 3 or 4 Dexedrine pills a day. Other than length of duration this is great."