I'm past the 2pm mark, still no sleep. It appears to be working, effects similar to two pots of black coffee, minus the side effects except for the stomach cramps & pains. No desire to eat at all, but am attempting to eat some yogurt to calm my stomach down. I should be coming down soon, I think. Mean elimination rate for modanfil after peak plasma levels have been reached in 2-4 days is ~ 15 hours. I am at the 7.5 hour mark, but I think the effects of no sleep are finally getting to me. I elucidate the next two days will be improved.