Hello guys,
I have been reading a lot of good comments on modafinil. I used to take it for few days(maybe more than week) but as I recall I had pains in my stomach(back of...liver?). I also remember that color of my urine was much darker. I immediately stopped taking it.
Now I am thinking of trying it again since it was working well in comparison to most of nootropics i used after that
How toxic it is in your opinion? Do you notice any problems with liver/kidneys while taking it?