yeah shrinkage is a big problem. I also have erection difficulties since taking it, but I use viagra to counter it. I'm also using the size geneticsextender religiously, no gains so far, but I trust the process.
I remember taking it to study and my dick shrunk like I was in freezing cold water and wouldn't get all the way hard. If there was anything you could do besides adderall, do that instead. Those drugs are terrible