I snorted darvocet once after getting nicely plastered. My girlfriend and I had a 100mg pill and we split it into 6 lines. Yes, 6, and the lines were still huge. I took my 1/6 of the pill in two lines, one up each nostril. The burn was worse than BZP, sort of like the burn from good glass, but it lasted about 10 minutes. Anyway, I felt a little bit more sedated/euphoric after the burn went away. Whether that was because I actually snorted enough propoxyphene(<20mg) to catch a buzz or whether it was because my mucous membranes were no longer screaming at me, it's hard to tell. I ended up throwing the rest in a gelcap and swallowing it.