Hi,  In the years since I've had my first surgery I've been on most of the pain medications that are out there but the OxyContin, Methadone & Darvon.  I have found out that the Darvocet-N that you are wondering about does not have asprin in it and I was able to get the list for you:    Each tablet of Darvocet-N®50 contains 50 mg (88.4 µmol) propoxyphene napsylate and 325 mg (2,150 µmol) acetaminophen.   Each tablet of Darvocet-N®100 contains 100 mg (176.8 µmol) propoxyphene napsylate and 650 mg (4,300 µmol) acetaminophen.   Each tablet also contains amberlite, cellulose, F D & C Yellow No. 6, magnesium stearate, stearic acid, titanium dioxide, and other inactive ingredients.   I hope that what I was able to find out for you helps you in what ever you needed.  God Bless,  Beth Anne