Norpace and Pregnancy

Because it is a pregnancy Category C medicine, Norpace should only be given to a pregnant woman if the benefits of using the drug outweigh the risks. Although this product has not been adequately studied in pregnant women, animal studies have shown that this medicine decreased growth and survival of the offspring.

Can Pregnant Women Take Norpace?

Norpace® (disopyramide) is a prescription medication used to treat heart arrhythmias (irregular heartbeats). Based on the results of animal studies, this drug may not be safe for use during pregnancy.
 

What Is Pregnancy Category C?

The U.S. Food and Drug Administration (FDA) uses a category system to classify the possible risks to a fetus when a specific medicine is taken during pregnancy. Norpace is classified as a pregnancy Category C medication.
 
Pregnancy Category C is given to medicines that have not been studied in pregnant humans but do appear to cause fetal harm in animal studies. Also, medicines that have not been studied in any pregnant women or animals are automatically given a pregnancy Category C rating.
 
When given to pregnant rats at high doses, Norpace decreased growth and survival of the rat offspring. The doses given were high enough to also cause problems in the pregnant rats, including reduced feeding and problems gaining weight.
 
Norpace has not been adequately studied in pregnant humans. There have been reports of women using the medication throughout pregnancy, without causing any birth defects or other problems in the fetus. However, the medicine has also been reported to cause uterine contractions and early onset of labor when taken by pregnant women.
 
It is important to note, however, that animals do not always respond to medicines in the same way that humans do. Therefore, a pregnancy Category C medicine, including Norpace, may be given to a pregnant woman if her healthcare provider believes that the benefits to the woman outweigh any possible risks to her unborn child.
 
Pregnancy and Pain

Norpace Medication Information

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