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Cytomel dosage
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Cytomel dosage

After having two thyroidectomies and radioactive iodine for thyroid cancer (1997), I have been on 75 mcg of cytomel for 13 years. My new doctor wants to lower my dosage significantly because she says my tsh level is too low. I have already changed to 50 mcg daily. I am afraid to go any lower. What should I do?
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231441_tn?1333896366
Hi,

you need to test ft3 and ft4. THese are the active thyroid hormones.  These are the labs which you should use to adjust your meds.

Target FT3 and FT4 are in the mid to upper half of the reference range.

TSH is often not a good indicator of thyroid function.  50 mcg is already very low for someone who doesn't have a functioning thyroid.

Do you have symptoms of hypothyroid?

Let us know.
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Avatar_f_tn
You've been on straight Cytomel for 13 years?  No T4 meds?
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499534_tn?1328707778
If your existing Dr won't treat you properly by your Free T4 and Free T3, then find a new Dr. I cannot believe that a Dr would go by your TSH when you are on a T3 med only!  Cytomel or any T3 med will supress the TSH to make it look hyper, even though you are not.  
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Avatar_m_tn
hello Laura my friend !!
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