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Norpace CR and Pregnancy

As a pregnancy Category C medicine, Norpace CR may not be safe for pregnant women and should only be used when the benefits of using the drug outweigh the potential risks. Norpace CR has not been adequately studied in pregnant women. However, when given to pregnant rats, the drug caused decreased growth and survival of the offspring.

Can Pregnant Women Take Norpace CR?

Norpace® CR (disopyramide) is a prescription medication used to treat people who have certain serious heart arrhythmias (irregular heartbeats). Based on 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 CR 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.
Norpace CR decreased the growth and survival of rat offspring when given in high doses to pregnant rats. The doses given were high enough to also cause problems in the pregnant rats, including reduced feeding and problems gaining weight.
Norpace CR has not been adequately studied in pregnant humans. There are several case 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 that animals do not always respond to medicines in the same way that humans do. Therefore, a pregnancy Category C medicine, including Norpace CR, 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 CR Drug Information

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