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Drugs and Lactation Database (LactMed®) [Internet]. Bethesda (MD): National Institute of Child Health and Human Development; 2006-.
CASRN: 1206161-97-8
Drug Levels and Effects
Summary of Use during Lactation
Filgotinib is not approved in the United States by the Food and Drug Administration. No information is available on the clinical use of filgotinib during breastfeeding. The European manufacturer recommends that breastfeeding be discontinued during filgotinib therapy.
Drug Levels
Filgotinib is primarily metabolized to GS-829845, an active metabolite that has about 10% the activity of filgotinib.
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.
Effects in Breastfed Infants
Relevant published information was not found as of the revision date.
Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date.
Substance Identification
Substance Name
Filgotinib
CAS Registry Number
1206161-97-8
Drug Class
Breast Feeding
Milk, Human
Enzyme Inhibitors
Protein Kinase Inhibitors
Signal Transduction Inhibitors
Janus Kinase Inhibitors
JAK Inhibitors
Disclaimer: Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.
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