Answer
Yes, raltegravir and/or its metabolites are excreted in human breast milk to an extent that effects on breastfed newborns or infants are likely, and a risk cannot be excluded.
Sources for this answer
- Isentress 400 mg Film-coated TabletsMerck Sharp & Dohme (UK) Limited · emc · SmPC §4.6 Fertility, pregnancy and lactation · Version 37Document updated
Sources checked