Taltz ® (ixekizumab)

This information is intended for UK registered healthcare professionals only as a scientific exchange in response to your search for information.For current prescribing information for all Lilly products, including Summaries of Product Characteristics, Patient Information Leaflets and Instructions for Use, please visit: www.medicines.org.uk (England, Scotland, Wales) or www.emcmedicines.com/en-GB/northernireland/ (Northern Ireland).

Is Taltz® (ixekizumab) safe to use in lactation?

It is not known whether ixekizumab is excreted in human milk or absorbed systemically after ingestion.


What are the data on the ixekizumab use while breastfeeding?

It is not known whether ixekizumab is excreted in human milk or absorbed systemically after ingestion. However, ixekizumab is excreted at low levels in the milk of cynomolgus monkeys.1

Administer ixekizumab to a nursing woman, only if the potential benefit to the mother justifies the potential risk to the infant.2

Published data suggest that antibodies are excreted in human milk but do not enter the neonatal and infant circulation in substantial amounts.3-5

A decision should be made whether to discontinue breast-feeding or to discontinue ixekizumab taking into account the benefit of breast-feeding for the child and the benefit of therapy for the woman.1


1Taltz [summary of product characteristics]. Eli Lilly and Company (Ireland) Limited, Ireland

2Data on file, Eli Lilly and Company and/or one of its subsidiaries.

3Van de Perre P. Transfer of antibody via mother's milk. Vaccine. 2003;21(24):3374-3376. http://dx.doi.org/10.1016/S0264-410X(03)00336-0

4Kane SV, Acquah LA. Placental transport of immunoglobulins: a clinical review for gastroenterologists who prescribe therapeutic monoclonal antibodies to women during conception and pregnancy. Am J Gastroenterol. 2009;104(1):228-233. https://journals.lww.com/ajg/Fulltext/2009/01000/Placental_Transport_of_Immunoglobulins__A_Clinical.37.aspx

5Hurley WL, Theil PK. Perspectives on immunoglobulins in colostrum and milk. Nutrients. 2011;3(4):442-474. http://dx.doi.org/10.3390/nu3040442

Date of Last Review: 09 November 2021

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