Nascobal and Breastfeeding

Nascobal (cyanocobalamin nasal spray) has not been studied adequately in women who are nursing. However, this product does contain a form of vitamin B12, which does pass through breast milk. Although this is not usually a cause for concern, tell your healthcare provider if you are breastfeeding before starting Nascobal.

Can Breastfeeding Women Use Nascobal?

Nascobal® (cyanocobalamin nasal spray) is a prescription medication used to maintain normal vitamin B12 levels in people with pernicious anemia. It is also used in people who need extra amounts of vitamin B12 due to a variety of reasons.
Nascobal contains a form of vitamin B12. Although this vitamin is known to pass through breast milk, it is usually not a cause for concern.

More Information on Nascobal and Breastfeeding

Nascobal has not been adequately studied in breastfeeding women. However, it is a form of vitamin B12. As with most vitamins, the recommended dietary allowance (RDA) of vitamin B12 is slightly higher for breastfeeding women than for other women in the same age groups. More specifically, the RDA of vitamin B12 for breastfeeding women is 2.8 mcg per day, compared to 2.6 mcg per day for pregnant women and 2.4 mcg per day for most other adult women.
It is important for breastfeeding women to get enough vitamin B12, as a deficiency of this vitamin can cause problems in a nursing infant who is getting most or all of his or her nutrients through breast milk. Some of the problems associated with a vitamin B12 deficiency in a nursing child may include:
  • Anemia
  • Irritability
  • Poor appetite
  • Failure to thrive.
Most women will get enough vitamin B12 through a healthy and well-rounded diet. In addition, breastfeeding women are recommended to take a prenatal vitamin. Prenatal vitamins contain vitamin B12 in doses that are usually higher than the RDA. These higher doses are safe for women, as this vitamin has a low risk of toxicity.
However, if a woman's diet is inadequate to provide sufficient vitamin B12, such as may be the case if the mother is a strict vegetarian, supplementation may be required. In these cases, a healthcare provider may recommend vitamin B12 tablets or a medication like Nascobal.
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Nascobal Medication Information

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