How Long Will 40 mg of Vyvanse Last? Understanding Duration and Factors
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4 min read
In clinical studies, the effects of Vyvanse (lisdexamfetamine dimesylate) for adults with ADHD were shown to improve attention for up to 14 hours after a dose. The therapeutic effect of a 40 mg dose of Vyvanse can similarly be expected to last through a significant portion of the day, though this can vary for each individual.
