The US military uses it to keep troops awake around the clock. Given the right dosage, troops can remain alert without any negative effects for about forty hours.

It’s a strange med. I’ve looked into how it works, but nothing I’ve read makes sense. A lot of conjecture - I think people are happy it works at all.

I haven’t taken it in months, and I hope I never have to take it again. I was put on it when I was going through rehab, as I had developed a terrible habit of falling asleep at my desk. I’d be there, editing a Channel 9 video, and I’d lose consciousness. I wouldn’t wake up until many hours later when the nighttime cleaning staff startled me.

Even the modafanil wasn’t enough to stave off that sleep.

But, although they say this stuff isn’t addictive, I wouldn’t believe it for a second. It is, at the very least, habit forming. I know someone who can’t function unless he pops a few of these each day. He stays up around the clock, only sleeping occasionally, but claims he feels normal. The rings beneath his eyes betray whatever he might say about his state.

Bad stuff.

Still useful every so often, though - just on really tough days, methinks.