Can warfarin be safely used in breastfeeding mothers?

Warfarin can be considered safe for use in breastfeeding mothers, which supports the choice of "Yes." Research indicates that warfarin passes into breast milk in very small amounts. Studies have shown that the levels of warfarin in breast milk are low enough that they do not pose a significant risk to a breastfeeding infant. Furthermore, monitoring of the infant's coagulation status can be performed if concerns arise.

Breastfeeding provides important nutritional and immunological benefits, and in many cases, the benefits of warfarin therapy for the mother outweigh the minimal risks to the nursing infant. Health organizations generally endorse the use of warfarin in breastfeeding mothers, as long as the mother is properly monitored and managed.

While there might be context in which cautions are advised or where alternative therapies may be preferred, the prevailing view is that with appropriate management and monitoring, warfarin can be safely used during breastfeeding.