Drugs in lactation Source: LactMed

Idursulfase and Breastfeeding

Summary of use during lactation

No information is available on the clinical use of idursulfase during breastfeeding. Because it is a large protein molecule with a molecular weight of about 76,000 Da, the amount in milk is likely to be very low and absorption is unlikely because it is probably destroyed in the infant's gastrointestinal tract. If idursulfase is required by the mother, it is not a reason to discontinue breastfeeding. Until more data are available, idursulfase should be used with infant careful monitoring during breastfeeding.

Drug levels in milk and infant serum

Maternal Levels. Relevant published information was not found as of the revision date. Infant Levels. Relevant published information was not found as of the revision date.

Effects in breastfed infants

Relevant published information was not found as of the revision date.

Effects on lactation and breastmilk

Relevant published information was not found as of the revision date.

Source: Drugs and Lactation Database (LactMed®), National Institute of Child Health and Human Development, NCBI Bookshelf. Check LactMed for the most recent revision.

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