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Nitro-Dur and Breastfeeding

The manufacturer of Nitro-Dur (nitroglycerin patch) recommends that women use this drug with caution while nursing. Although no research has been done to determine if this drug passes through breast milk, it is thought that it might cause low blood pressure and headaches in a nursing infant. Before using Nitro-Dur while breastfeeding, talk to your healthcare provider about the potential risks.

Can Breastfeeding Women Use Nitro-Dur?

At this time, it is unknown if Nitro-Dur® (nitroglycerin patch) passes through breast milk. Therefore, if you are breastfeeding a child, you should talk with your healthcare provider before using Nitro-Dur. The manufacturer recommends that women use Nitro-Dur with caution while breastfeeding.

More Information on Nitro-Dur and Breastfeeding

No research has been done to see if Nitro-Dur passes through breast milk. This lack of research likely reflects the fact that Nitro-Dur is approved to treat chest pain (angina) due to coronary artery disease, a condition that is quite rare in young women.
Based on the known actions and side effects of Nitro-Dur, if the drug does pass through breast milk, it is reasonable to expect that it could cause low blood pressure (hypotension) and headaches in the infant.
Nitroglycerin ointment (Nitro-Bid®, Rectiv™) is sometimes used to treat anal fissures. In one study of 40 breastfeeding women who used nitroglycerin ointment to treat anal fissures, no problems were seen in the babies. This suggests, but does not prove, that Nitro-Dur patches would probably be just as safe.

Talking With Your Healthcare Provider

You should discuss breastfeeding and Nitro-Dur use with your healthcare provider. Each woman's situation is different, and you and your healthcare provider understand your situation best. After considering what you want and expect, as well as your current health situation, the two of you can make a shared decision that is right for you.
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