Darvocet was a prescription pain medication that combined propoxyphene (an opioid pain reliever) with acetaminophen. It was commonly prescribed to treat mild to moderate pain, such as discomfort following surgery, injury, or certain chronic conditions. For many years, it was considered an alternative to stronger opioids for patients needing moderate pain control.
In 2010, the U.S. Food and Drug Administration (FDA) recommended the withdrawal of Darvocet and other propoxyphene-containing medications from the U.S. market. This decision followed clinical data showing that propoxyphene could cause serious changes to heart rhythm, including potentially life‑threatening arrhythmias.
Studies found that even at standard prescribed doses, propoxyphene could prolong the PR, QRS, and QT intervals on an electrocardiogram (ECG), increasing the risk of dangerous cardiac complications. Because of these risks, the FDA concluded that the safety concerns outweighed the benefits of the drug.
As a result, Darvocet is no longer legally available in the United States.
Before its withdrawal, Darvocet worked through two active components:
Propoxyphene: An opioid analgesic that altered how the brain perceives pain.
Acetaminophen: A non-opioid pain reliever and fever reducer that enhanced overall pain control.
The opioid component acted on central nervous system receptors to reduce the sensation of pain. However, like other opioids, it carried risks of:
Dependence and addiction
Respiratory depression
Drowsiness and dizziness
Overdose, especially when combined with alcohol or sedatives
Even before its removal from the market, Darvocet had known side effects, including:
Nausea and vomiting
Constipation
Lightheadedness
Confusion (particularly in older adults)
More serious risks included:
Heart rhythm abnormalities
Seizures
Severe allergic reactions
Liver damage (due to acetaminophen, especially at high doses)
Because acetaminophen is present in many over‑the‑counter medications, accidental overdose was also a concern if patients unknowingly combined multiple products containing the same ingredient.
Since Darvocet is no longer approved in the U.S., healthcare providers now rely on safer and more effective pain management options. These may include:
Non-opioid medications such as acetaminophen or NSAIDs
Other prescription pain relievers when clinically appropriate
Physical therapy
Nerve blocks or interventional procedures
Behavioral and integrative pain management approaches
The appropriate treatment depends on the type and severity of pain, medical history, and individual risk factors.
If someone still has old Darvocet tablets, they should not use them. Expired or discontinued medications can pose serious health risks. The FDA recommends disposing of such medications through authorized drug take‑back programs or approved disposal methods.
Anyone experiencing ongoing pain should consult a licensed healthcare provider to discuss safe, evidence‑based treatment options. Self-medicating with unapproved or discontinued drugs can lead to severe health consequences.