Today, this from the Thyroid Society, online....

Dear Kathleen,

I apologize if there was a misunderstanding.

Pregnant women and mothers breastfeeding should not take radioactive iodine!
With regard to Antithyroid drugs...

"Antithyroid drugs get into breast milk and can affect a baby's thyroid
function.
If it is necessary to treat a nursing mother with antithyroid drugs, PTU is
preferred
since it does not appear in breast milk in as high concentrations as
Tapazole.  A PTU
dosage of less than 200 mg per day in a nursing mother does not usually
affect a baby's
thyroid function.  However, the nursing baby should have thyroid function
tests every
three to four weeks for as long as its mother is taking PTU."

Kathleen B. Bruce, BSN, IBCLC co-owner Lactnet,TLC, Indep. Consultant
mailto:[log in to unmask]
LACTNET Archives http://library.ummed.edu/lsv/archives/lactnet.html
 Emily's Mothering Project- http://together.net/~kbruce/proj.html
For LACTNET quilt raffle: http://together.net/~kbruce/kbblact.html