I've used a novel nootropic which is an adenosine antagonist (KW-6356) for long-lasting energy without dopaminergic stimulation. Something I found and which is commonly reported by other users is mood-enhancing properties:
The manufacturer doesn't make it clear why they axed it, but from my experience in med-tech I think this translates to "the FDA is going to balk at it"
I've used a novel nootropic which is an adenosine antagonist (KW-6356) for long-lasting energy without dopaminergic stimulation. Something I found and which is commonly reported by other users is mood-enhancing properties:
https://en.wikipedia.org/wiki/Sipagladenant