Pacerone and Breastfeeding

The manufacturer of Pacerone recommends that women not use this drug while nursing. This medication has been shown to pass through breast milk in large enough amounts to cause potentially serious side effects in a nursing infant. Also, because the drug can stay in your system even after stopping it, you may need to avoid breastfeeding if you have recently stopped taking Pacerone.

Can Breastfeeding Women Take Pacerone?

Pacerone® (amiodarone hydrochloride) is a prescription medication used to treat people that have life-threatening heart rhythm problems known as arrhythmias. The drug is known to pass through breast milk. Because it has the potential to cause serious side effects in a nursing infant, Pacerone is generally not recommended for use while breastfeeding.
 

More Information About Pacerone and Breastfeeding

Studies have shown that Pacerone passes through breast milk in humans in amounts that are large enough to potentially cause serious problems in a nursing child. Although there have been a handful of reports in which the medicine did not appear to cause problems in nursing infants, in one case, a nursing child whose mother took Pacerone developed symptoms of hypothyroidism (an underactive thyroid).
 
Pacerone contains a significant amount of iodine, which can affect a nursing infant's thyroid activity. Iodine has been reported to cause hypothyroidism in nursing infants.
 
In general, it is recommended that women who take Pacerone not breastfeed. Because the medicine can stay in the body for months after a person stops taking it, breastfeeding is also generally discouraged in women who have recently taken this medication. If your healthcare provider decides that it is okay for you to take this drug while breastfeeding, your baby's heart and thyroid should be monitored to ensure no serious problems are developing.
 
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Pacerone Medication Information

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