Is 5-Amino-4-oxopentanoic acid Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use 5-Amino-4-oxopentanoic acid? Is 5-Amino-4-oxopentanoic acid safe for nursing mother and child? Does 5-Amino-4-oxopentanoic acid extracts into breast milk? Does 5-Amino-4-oxopentanoic acid has any long term or short term side effects on infants? Can 5-Amino-4-oxopentanoic acid influence milk supply or can 5-Amino-4-oxopentanoic acid decrease milk supply in lactating mothers?

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.