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How Long Does Vyvanse Stay In Your System?

Vyvanse (Lisdexamfetamine) is a psychostimulant medication manufactured by Shire Pharmaceuticals for the treatment of ADHD (attention-deficit/hyperactivity disorder).  Many consider Vyvanse to be a “new and improved” successor of the drug Adderall.  Vyvanse contains the ingredient Lisdexamfetamine which is pharmacologically inactive until metabolized; hence being classified as a “prodrug.” The fact that Vyvanse is a prodrug …

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