Is Keytruda Safe in Breastfeeding
Question
I am a breastfeeding mother and i want to know if it is safe to use Keytruda? Is Keytruda safe for nursing mother and child? Does Keytruda extracts into breast milk? Does Keytruda has any long term or short term side effects on infants? Can Keytruda influence milk supply or can Keytruda decrease milk supply in lactating mothers?
Answer by DrLact: About Keytruda usage in lactation
No information is available on the clinical use of Keytruda during breastfeeding. Because Keytruda 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, Keytruda should be used with caution during breastfeeding, especially while nursing a newborn or preterm infant. The manufacturer recommends that breastfeeding be discontinued during Keytruda therapy and for 4 months after the last dose.
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