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A member asked:
How much time does dextroamphetamine stay in my system for?
A doctor has provided 1 answer
It varies with the : delivery system. Duration of action of Vyvanse, or lisdexamfetamine, is 12-14 hours in adults; Dexedrine (dextroamphetamine), (dextroamphetamine) 4-5 hrs.; Dexedrine (dextroamphetamine) Spansules, 6-10hrs. Onset, peak & duration of action differ based on how rapidly one metabolizes & excretes the drug. A single long-acting dose makes a urine drug screen + for amphetamines for 2-3 days. Increasing the dose may increase duration of action & side effects.
Answered 11/5/2014
3.6k views
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