Look into adrafinil; it's completely non-regulated/OTC in the US and metabolizes into modafinil in your gut.
From Wikipedia:
"Adrafinil is a prodrug; it is primarily metabolized in vivo to modafinil, resulting in very similar pharmacological effects. Unlike modafinil, however, it takes time for the metabolite to accumulate to active levels in the bloodstream."
You should monitor your kidney enzymes if using it long-term; I've never had any issues.
Plenty of places selling it for $20/30 300mg caps via Google Shopping search.
From Wikipedia:
"Adrafinil is a prodrug; it is primarily metabolized in vivo to modafinil, resulting in very similar pharmacological effects. Unlike modafinil, however, it takes time for the metabolite to accumulate to active levels in the bloodstream."
You should monitor your kidney enzymes if using it long-term; I've never had any issues.
Plenty of places selling it for $20/30 300mg caps via Google Shopping search.