Is Cloruro de benzalconio [INN-Spanish] Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use Cloruro de benzalconio [INN-Spanish]? Is Cloruro de benzalconio [INN-Spanish] safe for nursing mother and child? Does Cloruro de benzalconio [INN-Spanish] extracts into breast milk? Does Cloruro de benzalconio [INN-Spanish] has any long term or short term side effects on infants? Can Cloruro de benzalconio [INN-Spanish] influence milk supply or can Cloruro de benzalconio [INN-Spanish] decrease milk supply in lactating mothers?

Topical maternal application of Cloruro de benzalconio [INN-Spanish] or benzethonium chloride or their presence as a preservative in pharmaceuticals would not be expected to cause any adverse effects in breastfed infants.

A study in Japan randomized 80 consecutive term patients into 4 groups who received either povidone-iodine or benzethonium chloride as a skin disinfectant before delivery and one of these for postpartum vaginal lacerations. Prepartum doses were about 7 mL and postpartum doses were about 0.5 mL of solution. Infant thyrotropin levels were elevated in the infants whose mothers received topical povidone-iodine pre- and postpartum compared to infants whose mothers received benzethonium chloride.[2]