Stimulants are easily obtained from a doctor but I'm not sure if that would be worth it. Tell them you have ADD or Narcolepsy and you'll get one of these:
- methylphenidate - Fairly short duration, high level of safety. Take 30mg every 4-6 hours and it'll keep you up for however long you need.
- racemic amphetamine - Will make you 'jittery' because of its effects on the physical nervous system.
- dextroamphetamine - Very smooth, very safe. 20mg every 8 hours.
- modafinil - Used by fighter pilots as 'go-pills' to keep them awake for long missions and patrols. Still very new so not enough research has been done. Average safeness
Coffee is good but after it wears off you'll be much more tired than you were before...so make sure you keep drinking a strong cup every 2 hours or so to keep the buzz going.
Micro-naps work awesome. 20 minute nap every 6 hours and you'll be able to stay up for a week!
Methamphetmine off the street if you're that desperate (I don't recommend it nor have I done it) Most doctors will tell you that having a low dose of methamp for a short period of time will not cause any brain damage/dysfunction at all. $10 worth will keep you up for 2 days depending on quality. You won't feel 'speedy' at such a low dose.
Wow that was a long post. I guess you hear about all the ways of staying awake when you work at a hospital