shift work sleep disorde
"I had been taking Provigil for the past 4 yrs. Two years ago I was in a car accident and have been suffering back pain, which would not even subside with percoset. After reading some reviews I learned lower back pain is a side effect from Provigil. I was taking 400 milligrams daily into separate 200 milligram doses while working graveyard shift. Provigil has worked great however I just switched to Nuvigil today in hopes that my back pain will go away."