Is Hepatitis B Vaccine safe while breastfeeding?
Here is what NIH LactMed, the U.S. National Library of Medicine's authority on medicines and breastfeeding, reports about Hepatitis B Vaccine. This is a summary of that source — not our own verdict.
Effects on the breastfed infant
Breastfeeding can enhance the response of the infant to certain vaccine antigens.[ 2 , 5 - 7 ] Breastfed infants are also less likely to have fever and may be less likely to experience anorexia and reduced energy intake after routine childhood immunization than those who are not breastfed.[ 8 , 9 ] Breastfed infants of hepatitis B surface antigen positive mothers have a different response in the development of immunoglobulin subtypes after vaccination with hepatitis B vaccine than do formula-fed infants.[ 10 ] However, breastfeeding does not interfere with the infant's antibody response to hepatitis B vaccine.[ 11 ]
Effects on milk supply
Relevant published information was not found as of the revision date.
Levels in milk
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.
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.