There is no reason a mother cannot breastfeeding while taking
carbimazole or propylthiouracyl. I am not sure about the question of
taking this during pregnancy, but I don't think so. However, chances
are the mother has postpartum thyroiditis which gets better within a
few weeks *spontaneously*, and needs usually to be treated
symptomatically only with propranalol (which also does not require
stopping breastfeeding). Do not do a thyroid scan to differentiate
between postpartum thyroiditis and Grave's disease. It's not
necessary. Time will tell.
Hey, I thought the Aussies were doing so much better than the rest of
us in the English speaking world.
Jack Newman, MD, FRCPC