Is Marcoumar Safe in Breastfeeding

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

Marcoumar is not approved for sale by the U.S. Food and Drug Administration (FDA). Limited information indicates that anticoagulant maternal doses of Marcoumar produce low levels in milk. Until more data are available, shorter-acting anticoagulants are preferred, especially if the infant is younger than 2 months.