Adderall (dextroamphetamine and racemic amphetamine) & XR: Adderall (dextroamphetamine and racemic amphetamine) is immediate release stimulant, works for 4 hours. The XR is extended release, works for 6-8 hours.
Answered 2/13/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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