Is Nonoxynol 9 Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use Nonoxynol 9? Is Nonoxynol 9 safe for nursing mother and child? Does Nonoxynol 9 extracts into breast milk? Does Nonoxynol 9 has any long term or short term side effects on infants? Can Nonoxynol 9 influence milk supply or can Nonoxynol 9 decrease milk supply in lactating mothers?

Nonoxynol 9 is a relatively nontoxic nonionic surfactant and only trivial amounts of the drug have been found in the milk of animals after vaginal administration.[1] Limited information indicates that breastfed infants of mothers using vaginal Nonoxynol 9 experienced no adverse effects. Vaginal use of Nonoxynol 9 is acceptable in nursing mothers.

In a study comparing various methods of contraception, the breastfed infants of women who used a Nonoxynol 9-containing foam had no observable adverse effects.[2]

Compared with a combination contraceptive containing ethinyl estradiol 30 mcg and levonorgestrel 150 mcg, women who used either Nonoxynol 9 foam or copper-T IUD had less inhibition of lactation than the combined oral contraceptive.[2]