adderall vs generic | ADHD Information

I've taken regular adderall in the past and recently went back on it,I know what adderall is suppose to do. This month I took the generic and I see a big difference. The generic barely helps me focous,it doesn't last as long, and makes me very agitated, among other things. I would like to know if anyone else has had similar expierences with this.

I used to take Adderall and then I was switched to the generic brand. I haven't noticed a difference. But then again, I didn't really pay attention, IMAGINE THAT!  I know that's probably not what you're looking for. But on the generic brand, it starts to work about 45 minutes after taking it and last for about 4 hours.