Is L-dT Safe in Breastfeeding

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

L-dT has not been studied in nursing mothers being treated for hepatitis B infection. An alternate drug may be preferred, especially while nursing a newborn or preterm infant. No difference exist in infection rates between breast-fed and formula-fed infants born to hepatitis B-infected women, as long as the infant receives hepatitis B immune globulin and hepatitis B vaccine at birth. Mothers with hepatitis B are encouraged to breastfeed their infants after their infants receive these preventative measures.[1][2]