Pain Home > Darvon and Pregnancy
In studies on the active ingredient in Darvon (propoxyphene hydrochloride) and pregnancy, certain birth defects were reported. One study showed that this medicine may cause microcephaly, noncancerous tumors, and clubfoot. If you become pregnant while taking this drug, your healthcare provider will weigh the benefits and potential risks before making a recommendation.
Can Pregnant Women Take Darvon?
What Is Pregnancy Category C?The U.S. Food and Drug Administration (FDA) uses a pregnancy category system to classify the possible risks to a fetus when a specific medicine is taken during pregnancy. Pregnancy Category C is given to medicines that have not been studied in pregnant humans, but do appear to cause harm to the fetus in animal studies. Also, medicines that have not been studied in any pregnant women or animals are automatically given a pregnancy Category C rating.
- Microcephaly (abnormally small head)
- Noncancerous tumors
- Patent ductus arteriosus (a heart defect).