Originally Posted by
bobbytables
Modafinil indeed does what it says on the tin but routine use could come back to bite you if anything bad happens, unless you're one of those combat pilots. I can see the Daily Mail headline now: something something Flying High...
From wikipedia:
Modafinil’s side effects include severe migraine, intense fear and anxiety, excessive adrenal gland overproduction, and nausea. Serious side effects in high doses include delusions, unfounded beliefs, paranoia, irrational thought, and intense, temporary depression, possibly due to its effects on dopamine receptors in the brain, as well as allergic reactions.