Caffeine
hypersomnia
"I give Vivarin a seven for an OTC medication. I don't sleep well at all at night and I usually average 3-4 hours. I stay in pain so when my alarm goes off in the morning, it is much easier to put a tablet in my mouth along with my pain medication and reset the alarm for one hour later. When it goes off I feel much better for it has helped awaken me and the methadone had started to work for the pain. It doesn't upset my stomach as much as the No Doz. Then later if I want a cup of coffee and I have time to drink it I can but usually I don't have the time and I have to pop another Vivarin to keep me going."