Da mange lægemidler, inklusive anthracykliner, udskilles i modermælk og på grund af muligheden for alvorlige uønskede reaktioner hos diende spædbørn skal mødre derfor ophøre med at amme før påbegyndelse af Caelyx- behandling.
Because many medicinal products, including anthracyclines, are excreted in human milk, and because of the potential for serious adverse reactions in nursing infants, therefore mothers must discontinue nursing prior to beginning Caelyx treatment.