How long does a 1 xr20mg adderall to start working? how long does it take for it to stop working?

Question

please give specific anwsers or a webisite that might have the anwers if you can. thanks!

Answer 1

6-8 hours

Answer 2

http://www.adderallxr.com/assets/pdf/pre...

my son is on xr 10mg and when he started taking it, you could see a difference right away, normally within an hour. and he gets it in the morning around 7am and it starts to wear off around 6-8pm