Coagulation Factor IX and breast feeding
No information is available on the clinical use of coagulation factor IX during breastfeeding. Because it is a large protein molecule, 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. Until more data become available, coagulation factor IX should be used with caution during breastfeeding, especially while nursing a newborn or preterm infant.
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Alternative drugs - Coagulation Factor IX and breast feeding
Suggested alternatives on Coagulation Factor IX and breast feeding, when available and appropriate.
Breast feeding and drugs