Answer
Filgotinib maleate (Jyseleca) should not be used during breastfeeding because it is unknown whether filgotinib is excreted in human milk and a risk to breastfed newborns or infants cannot be excluded.
Sources for this answer
- Jyseleca 100 mg film-coated tabletsAlfasigma UK Limited (formerly Galapagos Biotech Limited) · emc · SmPC §4.6 Fertility, pregnancy and lactation · Version 20Document updated
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