Darvon and Darvocet Recall

Following the release of new clinical data linking the drug to heart rhythm abnormalities, the FDA has requested a recall of propoxyphene, a prescription pain medication. Xanodyne, the pharmaceutical company which manufactures propoxyphene under the brand name Darvon and Darvocet, has agreed to withdraw the medication.

Darvon and Darvocet Side Effects: Abnormal Heart Rhythms

The results of a propoxyphene study, which prompted the Darvocet and Darvon recall, indicated that the drug significantly changes the electrical activity of the heart. These changes can be seen on ECGs (electrocardiograms) and may increase the risk of abnormal heart rhythms, which have been linked to serious adverse events, including death. Other cardiac side effects of Darvon and Darvocet include:

• Slowed heartbeat
• Decreased ability of the heart to contract properly
• Interruption of the heart’s transmission of electrical impulses

According to available data, even small changes in a patient, such as dehydration, a change in medication, or changes in kidney function, can impact the risk of adverse propoxyphene side effects.