Question

I am a breastfeeding mother and i want to know if it is safe to use MK 3475? Is MK 3475 safe for nursing mother and child? Does MK 3475 extracts into breast milk? Does MK 3475 has any long term or short term side effects on infants? Can MK 3475 influence milk supply or can MK 3475 decrease milk supply in lactating mothers?

Answer by DrLact: About MK 3475 usage in lactation

No information is available on the clinical use of MK 3475 during breastfeeding. Because MK 3475 is a large protein molecule with a molecular weight of about 149,000, 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, MK 3475 should be used with caution during breastfeeding, especially while nursing a newborn or preterm infant. The manufacturer recommends that breastfeeding be discontinued during MK 3475 therapy and for 4 months after the last dose.

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