It is a drug they use for people with narcolepsy. I have a script for it though due to excessive sleepiness due to RSD & the drugs I take to try to control RSD. I still have the script & my doctor recently renewed it. I do NOT take it every day. It can be taken twice a day if needed. I only take it when I need to be up & alert. It does work quite well. If I were able to have continued working even though having RSD I would probably take it atleast 3 times a week to stay more alert.

I did find if taken too often during any given week, I would have problems falling asleep when I wanted to do so.

DebbyV