Originally Posted by pohtr
I think I would have vibrated myself into pieces if I started with 20.
Hehehehehe, that is funny.
We all seem to respond differently. You should notice some effect from 20mg Adderall within an hour or two tops. Whether the effect is calmer vibs, is another matter altogether.
Your doctor most likely gave you a trial dose of Adderall. Report your reactions. Your doctor should tweak the dose and possibly the med until "calmer vibs" or best effect is discovered.