Answer
Yes, lenvatinib is contraindicated during breastfeeding because a risk to newborns or infants cannot be excluded; excretion into human milk is unknown, but lenvatinib and its metabolites are excreted in rat milk.
Sources for this answer
- Lenvatinib Eisai 4mg hard capsulesEisai Ltd · emc · SmPC §4.6 Fertility, pregnancy and lactation · Version 32Document updated
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