Darvocet-N 100 - How long does Darvocet (Propoxphene) stay in your system?

Depending on how fast your metabolism is, how much you took and for how long from 3 to 8 days. Also depends on the sensitivity of the drug test, a mail off test will test you positive although at low levels for longer than just a basic drug test. Pain management doctors and recovery centers may also have more sensitive tests.