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Thyroid  (Expert Forum)
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Possible change of treatment for GD?
Answered by
Mark Lupo, M.D. - Thyroid Nodules, Thyroid Cancer, hyperthyroidism, hypothyroidism, Thyroid Ultrasound
Thyroid & Endocrine Center of Florida Sarasota - FL
Questions in the Thyroid forum are answered by Dr. Mark Lupo. Topics covered include goiter, graves disease, Hashimoto's thyroiditis, hyperthyroid, hypothyroid, thyroid cancers, thyroiditis, and thyroid stimulating hormone (TSH).

Possible change of treatment for GD?

by Jenoveva, Feb 11, 2007 12:00AM
First of all, I am an RN, but my field has always been L&D. My knowledge of Endo is limited and probably outdated. I have had GD for 3 yrs. There is no eye involvement at all. I had no outward symptoms of GD before my diagnosis, other than a small goiter which I couldn't see till I lost 50 lbs. I still feel the same when I am euthryroid as I do when I enter the hyper ranges again. I have been taking PTU all this time, with no untoward results. I responded very quickly to the PTU, returning WNL in 4 months time. Whenever I stay WNL x 2 months, he stops the medication to see if I can go into remission. During those 2 months, I took 100 mg q 8hrs x 2 mos. Once he had me on 50 mg q 8r x 2 mos. I can stay WNL for 2 mons off of the PTU, but then I start going hyper again. We have tried this 4 or 5 times now. My doc has me going in for labs q 2 mons. I was considering RAI because I was under the impression that I could only take PTU for a limited time, but now I have found out otherwise and will probably cancel the treatment and take the PTU again. My questions are: 1) is it typical for a patient to go every 2 mos for labs if she has GD and is on PTU (I know of no one else in this situation who goes this often) and 2)should I be staying on PTU for a longer period of time (more than 2 mos) before the doc stops it to see if I go in remission and/or should I perhaps be weaned off of it more gradually, possibly tapering it down to 25 mg q 8hrs for a while? It seems to me that I am jumping too soon into trying for remission after resuming the PTU.

by Mark Lupo, M.D., Feb 16, 2007 12:00AM
1) I usually test Graves patients on PTU or Tapazole every 2-3 months. If monitored closely for liver, WBC abnormalities, these meds could be used long-term, but the risks may outweigh benefit and I-131 is usually simpler.

2) I usually taper these meds and not simply stop it from 150-300mg/day -- usually get down to 25mg bid then try to stop.
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