Dear Pam, As a Mother who has had hyperthyroidism through two pregnancies and two years of nursing my first son, I can understand the frustration with the lack of information regarding this condition. I was diagnosed during my first pregnancy and was placed on PTU (propylthiuracil). At 4 mos postpartum I went euthyroid and went off PTU but was placed back on PTU at 9mos PP because I went back to hyperthyroidism. My endocrinologist was attempting to talk me into having radioactive iodine all this time. She informed me, as did the nuclear medicine specialists, that I would have to wean completely. I was devastated! I talked to me LLL leader who encouraged me to pump for 2 weeks after the radioactive iodine. I was concerned because Dr Hale and other studies did not go along with this direction. In addition, I had found studies that questioned whether or not the radioactive isotope could be permanently found in ovum. I wanted to have more children. I chose not to have the radioactive iodine until after I was done lactating all of my children. Because I did my own research my endocrinologist was not pushing it any longer. I have to preface all of this with the fact that I was able to remain in relatively good health through this all. I was able to be maintained on PTU. My cardiac issues did not become severe. I did not have severe clinical issues that would warrant immediate treatment. I became pregnant again and fortunately did not need PTU but I was still clinically hyperthyroid. After birth I was hypothyroid for about 2 weeks and now I have been euthyroid for approximately 10 months. My suggestion is to do a lot of research. Know that she cannot harm her baby by nursing while Hyperthyroid. She can nurse while on PTU depending on the dose. My highest dose was 150 mg. Hopefully she can be maintained on PTU until she is done lactating! My son was closely monitored by his ped while I was on the PTU to insure he did not become hypothyroid. This is done through a blood test. He saw a ped endocrinologist to make sure. She needs a supportive endocrinologist who understands lactation. If she would like to speak of line she can email me. Rebbecca Rosen RN, BSN, CBC *********************************************** To temporarily stop your subscription: set lactnet nomail To start it again: set lactnet mail (or digest) To unsubscribe: unsubscribe lactnet All commands go to [log in to unmask] The LACTNET mailing list is powered by L-Soft's renowned LISTSERV(R) list management software together with L-Soft's LSMTP(R) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html