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At the right dosage it might. But at first it doesn't seem to last very long for some. I average at 9 hrs a day on this medicine. Shire didn't do this study in adults that made them claim it's a twelve hour pill. It's also a different kind of drug than other stimulants. Works well on some, not on others. Studies have proven that it lasts anywhere from 9-13.5 hours. Vyvanse wont usually last as long if you snort it.

CORRECTION:

Vyvanse is biologically inactive until its first pass by the liver. It has a halflife of 12 hours, and should on average last nearly that long. Everyone is different so you won't know how long it takes you to metabolize it until you try it.

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14y ago

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