Darvocet and Darvon have been pulled from the market after over 30 years of consumer advocacy groups petitioning for its ban. Darvocet side effects lawyers are available for patients who have taken the pain medication Darvocet, Darvon, and any other product containing propoxyphene. The side effects of Darvocet are severe and potentially life threatening. These side effects include heart related side effects, such as arrhythmia, congestive heart failure, and heart attack. If you or a loved one has taken the drug Darvocet and experienced side effects, contact a Darvocet side effects attorney for a free and confidential evaluation of your case to see if you are eligible for monetary compensation.