NitroMist and Breastfeeding

It is unknown whether NitroMist (nitroglycerin spray) is safe for use while nursing. No research has been done on this topic, but it is thought that if the drug did pass through breast milk, it might cause headaches and low blood pressure in a nursing infant. Before using NitroMist, breastfeeding women should talk to their healthcare provider.

Can Breastfeeding Women Use NitroMist?

At this time, it is unknown if NitroMist® (nitroglycerin spray) passes through breast milk. Therefore, if you are breastfeeding or plan to start, you should talk with your healthcare provider before using NitroMist. The manufacturer recommends that women use this drug with caution while breastfeeding.

More Information on NitroMist and Breastfeeding

No research has been done to see if NitroMist passes through breast milk. This lack of research likely reflects the fact that NitroMist 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 NitroMist, 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. It is unclear if NitroMist would be similarly safe.

Talking With Your Healthcare Provider

You should discuss breastfeeding and NitroMist 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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NitroMist Medication Information

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