narcolepsy
"I have Narcolepsy and I am currently taking 200mg twice daily and it barely works. My doctor added Ritalin 20mg twice daily and I have been on Ritalin for previous years until I moved to TX. In 2013, I was prescribed Vyvanse 70mg I believe. It didn't work better than the Ritalin or Adderall I tried while in TX. My doctor then prescribed Xyrem. Needless to say none of these drugs have provided adequate relief from daytime sleepiness. I started provigil in January 2016 and there's no change. I took provigil about 10 years ago and the same results. I need serious help because I barely function."