Dear Diane, Based on my study of one: my daughter nursed 2 babies on Synthroid. She did have trouble during 3rd pg keeping thyroid normal and they tinkered with dose during pg and lactation, monitored frequently. Had to add a second thyroid med to keep it level. She needs to see her endocrinologist. My daughter's FP dr defered to endocrinologist's judgement. Sincerely, Pat in SNJ *********************************************** The LACTNET mailing list is powered by L-Soft's renowned LISTSERV(R) list management software together with L-Soft's LSMTP(TM) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html