hi

i've taken provigil too. it worked for me for about 4 hrs then wore off.
i find i can get the same effect with a morning cup of regular coffee. but i don't take it too late, say around 1100 because then i can't sleep.

there are several meds that are available for MS fatigue.
i'm sure you'll find one that works best for you.

please know that MS fatigue is a very common sx (symptom).
i've learned how to pace myself thru the day to conserve energy. i've also learned to stop (my errands) when i feel the fatigue setting in. there have been times i've even stopped at a restaurant to have a bite, or a cup of coffee and benefit from their AC.

you'll find strategies that work for you.