vyvanse long term effects on memory

Is there published research on long term effects of vyvanse on memory?
1200mg of vyvanse per day is the helpful dose. Does this increase probability
of memory loss?  If so, what kind of memory loss? How serious or debilitating?

[Kresaera]

That's a big dose. I'm not sure of long term memory effects. :-(

[firewulf]

1200 mgs of vyvanse in one day should just about kill you unless you have the drug tolerance of a god... considering the average effective prescription dayly is only about 30-60 mgs per day. But I am experiencing a little memory lost with my little 30mg prescription apparently it isn't a common side effect so the FDA says nothing about it.