Re:The FDA has officially declared a shortage of Adderall
by braingenious on Friday October 14, 2022 @09:40PM
(#33210802)
As far as I understand it, Vyvanse is specifically designed not to be instant release. It is amphetamine attached to lysine that only becomes active after the lysine is cleaved from it in your gut.
Also, is there an instant release Vyvanse? I thought it was just extended release.