Vyvanse: weight loss, stacking

Vynase isn't really a noot by definition. It's a prodrug for d-amphetamine. It's a common misperception I think but while it may improve your focus and motivation, in the long run it will damage your neurons, last I read...

Some people have adhd that doesn't get diagnosed til much later in life.
If vyvanse is giving you a speedy rush feeling, tunnel vision etc etc, now he careful spotting these cos its more mild of a come up than adderall. Right so if you have these effects, do not follow your doctors advice. Do not take it regularly or everyday. You will become dependant on it and it'll be hell to wean off, and it might give you adhd. But it's quite a drug, far more effective at a single acute dose than any of the nootropics.
If it calms you down, we'll you have adhd and a course of vyvanse will actually help you.

I think it's wise to stay away from hepatotoxic or carcinogenic compounds.
Do not use moais with vyvanse, or stims like modafinil.
Some racetam would be a good bet. I switched to noots cos I hated how with adderall I was working at +50% then the next day I'd crash and be at - 60%. With the piracetam it was a constant +5-10%.
Precursors for dopamine, serotonin and choline will also help

To answer your question.. in my experience using vyvanse, any time I took noots along with it the vyvanse easily overpowered the noot effects. At least as far as racetams and similar types. If anything L-theanine would be a great choice to take with vyvanse if it makes you too stimulated. Other than that maybe just basic supplements like dopamine precursors, Mg, fish oil, etc. Possibly some choline too, but that might only be relevant for racetam use.