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650685 tn?1238004750

How high can levothyroxine dose be?

Hi I am hypothyroid & take 100mg Levothyroxine per day. I was diagnosed 2 years ago. In general I feel quite well apart from cold & heat intolerance. I was wondering what the range of doseage of Levo can be? I mean I know that some people can take 25mg as a low doseage but I would like to know from you all what doseage you are on & the highest dose that is given?
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Avatar universal
For 13yrs I took 200mcg, but it has been lowered in the past 3yrs to 125mcg. Right now 125mcg is what I need to be taking to keep my TSH at 1.0 or a little below.

I had a TT 15 yrs ago.

It all depends on the individual, not everyone is the same "in medicine dosage". Your doctor should go by your TSH / T3 / T4 levels.
Helpful - 0
231441 tn?1333892766
Hi,

the correct dose is the one that gives correct levels.  I am on 125 mcg of thyrax (T4) and 155 mcg of dessicated thyroid.  This is approximately equivalent to about 375 mcg of T4 alone (60 mcg of dessicated approx. = 100 mcg of T4).  A very high dose. But that is what it takes to get my levels where they should be and to feel ok.

So guess you have to keep testing and adjusting to get where you need to be.
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