Overall result: moderately successful
The directions on the side of the box suggested that I take one, and if nothing happened that time, the next time I take a dose, take two.
I downed one of the gigantic pills at about 9pm, and sat down to watch the Toronto mayoral debate on CP24, hoping that cold medication would somehow make Rob Ford make sense. (No dice there.)
After about 45 minutes, I didn't really feel anything except a bit of numbness in my fingertips, but I didn't really connect that with the NyQuil. I wasn't being hit with a wave of drowsiness or anything, so at about 10 I decided I'd take another, and hit the sack soon after.
At about 2am, there was a pretty magnificent thunderstorm raging outside, which woke me up. I felt pretty darn good — no sniffling, no congestion, no coughing — but again, my fingertips (and now my fingers and parts of my hands) felt all numb and tingly. But, when I closed my eyes again, I started seeing stuff which looked kinda freaky — there was a cloud or something that was coming at me, and somehow crumpling up or some shit — so I had to open my eyes for a minute.
To (fake-) NyQuil's credit, I did end up sleeping a full night. The problem is, I felt really weird until about 2pm. I'd walk down the hall and my head wouldn't feel connected to my feet. I think the best word to describe it would be "fuzzy."
Granted, sometimes I like feeling fuzzy. Hell, getting fuzzy is sometimes the point of a whole Saturday night, isn't it? But when I'm at work and need to be sharp as a tack for those little rug-rats, fuzzy ain't what I'm looking for. Strangely enough, I haven't felt any major cold symptoms all day and evening.
Conclusion: Maybe only the one pill next time.