I found what I *think* were darvocets (propoxyphene) in my medicine cabinet from when my dad broke his arm in 1996. This makes these pills nearly 10 years old. The first time I tried them I didn't know about the acedominiphin problem and just took 8 pills without attempting an extraction. That got me pretty happy. The last two times though I attempted an extraction and it failed for some reason -- I don't know why. I know I did a good job and did it right both times, but after drinking the solution I didn't feel a thing.