I have been taking generic Adderall IR 20mg for about 3 years. During that time,
I have used Barr/Teva, Corepharma, and Sandoz.

This month, June 2014, I received a generic brand I had never taken.

The manufacturer is: Mallinckrodt

I know may people will say "this is all in my mind" but I can tell you,
this generic brand is profoundly horrible... no efficacy, potency.

Has anyone experienced the same?