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A member asked:
If you take a vyvance how long does it stay in your sysyem?
8 doctors weighed in across 2 answers
Variable: Because vyvanse (lisdexamfetamine) is a pro-drug, it's activity in the CNS depends on cleaving lysine from the drug. This is rate limiting and provides about 12-16 hours of Dexedrine activity.
Answered 2/4/2017
4.9k views
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Not long: Half life of vyvance is about 9.5 hours(length of time to metabolize 1/2 the dose. Should be pretty much out of your body within 24hrs.
Answered 5/8/2016
4.9k views
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My adult son takes 90 mg of vyvanse (lisdexamfetamine)?
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