A member asked:

Approximately how long should the effects of a 20 milligram adderall (dextroamphetamine and racemic amphetamine) last?

A doctor has provided 1 answer

1 day: The half-life of Adderall (dextroamphetamine and racemic amphetamine) is10 hours. So, after 24 hours, there wouldn't be left in your system.

Answered 6/24/2014

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