This sucks. I've been having a real hard time staying focused these past few afternoons. See, here's the thing: I take 10mg of generic Adderall in the afternoon. It usually lasts me 3.5-4 hours. The manufacturer of these generics has been Sandoz. However, when I got my prescription refilled last Friday, the pills didn't look like they usually do. When I got home, the vial read "CorePharma" under "MNF" (manufacturer). I thought, "no biggie. They'll probably work as good as Sandoz's'". Was I ever more wrong! I feel a huge surge in terms of an effect approximately 20 minutes after taking these, then... nothing. So it feels as if I haven't been taking anything these past few afternoons. Who else has had bad experiences with certain manufacturers of psychiatric drugs? What was the experience like for you? As for me, I'm hoping for Sandoz generics next time (or Barr, even, but not crappy CorePharma again).