i was on
provigil when i was first diagnioed woth ADHD its a stimulant but not like
ritalin adderall or coke not amphentamine.
it didnt work dor me so my doc put me on rotalin i find it works better than provigil
as far as being additive i really dont think so but i wasnt on it long enough to give you a definate answer
good ouck
Morticia