maternal vitamin K supplements of 5mg/day (800% RDA) has been shown in one study to raise infant serum levels to near formula-fed levels, but there is no FDA approved multi-vitamin that contains this amount of vitamin K.maternal dietary changes have little effect on overall vitamin K status of newborn.since multiple doses are required, compliance is an issue with all oral regimens.Failures have not been reported with IM prophylaxis. in countries that have gone to PO prophylaxis, failures (even with good compliance) have been reported.Some have given infants the injectible liquid by mouth, but this is an unstudied intervention - there is no safety or effectiveness data available. there is no licensed PO form in the US.2mg PO vitamin K after first feeding then 2mg within first week followed by 25mcg daily for 13 weeks.2 – 4mg PO vitamin K after first feeding then 2mg within first week and weekly while breastfeeding.2 – 4mg PO vitamin K after first feeding then 2mg at 2 – 4 weeks and again at 6 – 8 weeks.

Vitamin k antidote