Research has shown that Nexterone (amiodarone premixed injection) does pass through breast milk in large enough amounts to potentially cause problems in a nursing infant. Due to the risk for potentially serious side effects, the manufacturer recommends that women not breastfeed while using Nexterone. Make sure to discuss the risks with your healthcare provider before starting treatment.
Can Breastfeeding Women Use Nexterone?
Nexterone® (amiodarone premixed injection) is a prescription medication used in people who are experiencing life-threatening heart rhythm problems known as ventricular arrhythmias. This medication passes through breast milk. The manufacturer of Nexterone recommends women not breastfeed during treatment with this drug.
More Information About Nexterone and Breastfeeding
Nexterone has been shown to pass through breast milk in humans in amounts that are large enough to potentially cause serious problems in a nursing child. There are a few reported cases describing the use of amiodarone (the active ingredient in Nexterone) in breastfeeding women. In several of these cases, the drug did not appear to cause problems in the nursing infants. However, in one case, the nursing infant developed symptoms of hypothyroidism (an underactive thyroid), likely due to being exposed to amiodarone through breast milk.
Nexterone contains a significant amount of iodine, which can affect a nursing infant's thyroid activity. Iodine has been reported to cause hypothyroidism in breastfed infants.
In general, it is recommended that women who use Nexterone not breastfeed. Because the medicine can stay in the body for months, breastfeeding is also generally discouraged in women who have recently received Nexterone.
If you have recently been given this drug and would like to breastfeed, talk to your healthcare provider about the safest time to start. If he or she decides that it is okay for you to breastfeed during or soon after Nexterone treatment, your baby's heart and thyroid should be monitored to make sure that serious problems do not develop.
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