Is Epoetin Alfa safe while breastfeeding?

Here is what NIH LactMed, the U.S. National Library of Medicine's authority on medicines and breastfeeding, reports about Epoetin Alfa. This is a summary of that source — not our own verdict.

Effects on the breastfed infant

Enhancement of gastrointestinal tract maturation has been proposed as a function of erythropoietin in breastmilk.[ 3 , 11 ] In a study of 40 women with postpartum anemia, 19 of 20 women who received iron and subcutaneous recombinant human erythropoietin (generic name and brand not specified) 200 IU/kg daily for 15 days were able to breastfeed their infants. This regimen is more aggressive than the approved three times/week regimen. In the control group that received only oral iron and folic acid, only 10 were able to breastfeed their infants. No adverse reactions were reported among the infants of women who receive epoetin.[ 2 ]

Effects on milk supply

In small studies, epoetin alfa administration decreased serum prolactin in patients with amyotrophic lateral sclerosis,[ 12 ] but had no effect in normal subjects or in patients with renal failure undergoing chronic ambulatory peritoneal dialysis.[ 13 , 14 ] The prolactin level in a mother with established lactation may not affect her ability to breastfeed.

Levels in milk

Maternal Levels. Relevant published information on exogenous administration of epoetin alfa was not found as of the revision date. However, breastmilk normally contains erythropoietin. Erythropoietin concentrations in human milk are in the range of approximately 4 to 5 units/L in the first 1 to 2 months postpartum and increase to 20 to 40 units/L by the third month and to 100 to 150 units/L by 12 months.[ 3 ] Infant Levels. Published information on absorption of epoetin alfa from breastmilk was not found as of the revision date. However, several studies in which oral doses of epoetin alfa and other recombinant forms of erythropoietin were given to preterm infants found that epoetin is absorbed to a small extent. Increases in hematocrit in infants treated with oral epoetin alfa have been small to negligible.[ 5 - 10 ] However, one study found that hospitalized preterm infants taking enteral feedings and given 400 units daily of recombinant human erythropoietin by mouth with ferrous sulfate had higher reticulocyte counts and serum erythropoietin concentrations upon hospital discharge than control infants given only ferrous sulfate.[ 11 ]

Source: NIH LactMed (National Library of Medicine).

Educational summary of an authoritative source — not medical advice. Never start, stop, or change a medicine while breastfeeding without confirming with your doctor.