Many women are concerned about the impact of medications on breastfeeding. Have a look at the American Academy of Pediatrics 2013 news release on Breastfeeding mothers and transfer of drugs and therapeutics. This publication reaffirms that the majority of medications and immunizations are safe during lactation.
ARTICLE: http://pediatrics.aappublications.org/content/early/2013/08/20/peds.2013-1985.full.pdf+html
Best, the bOHP team