Is 4-Aminobenzoic acid, ethyl ester Safe in Breastfeeding

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

At latest update, relevant published data on excretion into breast milk were not found. Topical anesthetics (intended for dermatological or oral use) when properly used, show limited systemic absorption which is practically nil, with nil or non-significant systemic levels in the plasma and breast milk. 4-Aminobenzoic acid, ethyl ester may induce appearance of methemoglobinemia and systemic toxicity if absorbed. Avoid use on the breast, otherwise, in case of use on the nipple, let it be done after a feed and wipe it out by thoroughly washing with water before the next feed. Do not apply creams, gels and other products that would contain paraffin (mineral oil) to avoid absorption by the infant since it is a hydrocarbon-derived substance.

Topical 4-Aminobenzoic acid, ethyl ester has not been studied during breastfeeding, but is unlikely to affect her breastfed infant if it is applied away from the breast. 4-Aminobenzoic acid, ethyl ester should not be applied to the breast or nipple, because the infant may ingest the drug during nursing and it has been associated with severe methemoglobinemia.