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Perth Amboy, NJ
A 43-year-old female asked:

i was diagnosed as having grave's disease in april of 2012. i received the radioactive iodine therapy on may 25th this year. my thyroid is under active now so i started taking levoxyl 100 mcg on august 30th and i am still feeling extremely tired and i ga

2 doctor answers2 doctors weighed in
Dr. James Chu
Endocrinology 25 years experience
Need time to normal: Radio iodine therapy is used to treat graves' disease, by destroying the over active thyroid. It takes most patients a few months for the thyroid to drop to under-active levels. Once low thyroid is identified and Levoxyl started, it will take at least 3-4 weeks before levothyroxine has noticeable effects. Then it may take months to adjust to correct dose... Be patient while levels normalize!
Dr. Stanley Schwartz
Endocrinology 52 years experience
Is it the correct...: Dose is the issue md must check thyoid blood tests, freet4 and TSH to make sure both normal if they are , look for other causes of fatigue!

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Last updated Jun 27, 2014
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