It is locally used together with photo-dynamic therapy (especial blue light) as a treatment of Actinic Dermatitis and Basocelular Carcinoma. At latest update, relevant information on excretion into breast milk was not found. Absorption through the skin is very low (0.26 % of administered dose), hence, a low or non-significant level in the mother's plasma should be expected. In case that a complete elimination of drug would be desired, a time period equivalent to ten times a half-life (Mean time) should be observed after drug administration to resume breastfeeding. In this case it would be equal to 8-10 hours. In the mean while, pump-and-dump regularly to maintain milk production. Do not apply it on the breast or cleanse it thoroughly to keep the baby from swallowing.