Thyroid UK
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T3 results over supplemented- advice pls?

I have had a b***y awful week, have literally crashed and been asleep for the last four days. Everything aches, my skin itches, nauseous- not sure if thisn is a seoarete illness or my thyroid regime?

My bloods in mid November were as follows, having been on 50mcg Levo and 20mcg T3 : TSH 0.2 ( 0.2-5.5)

Free T4 6.5 ( 10-24.5 ) (under reference limit) ,Free T3 3.8 ( 3.1 - 6.8)

On advice here, as I still felt awful, I upped my levo to 75mcg then 100mcg for the last month. Latest blood test is:

TSH 0.05 ( 0.2-5.5) FT4 13.4 ( 10-24.5) FT3 8.2 (3.1-6.8)

My Doctor now says I am too suppressed and my T3 is too high and has told me to reduce back the Levo again. I am having 48 hours clear then starting again with 75 mcgLevo + 20 mcg T3. Since starting T3 I can honestly say nothing has changed and I still drag myself through daily life . Any help or suggestions appreciated. x

4 Replies


Did you take T3 before your blood test?


pretty sure I didn't but my head has been all over the place lately.......



If you didn't you are over medicated and 25mcg Levothyroxine dose reduction should drop FT3 back into range. Being over medicated may be why you felt so awful this week.

1 like

That's what I deduced- I am also going to go back to splitting the T3 to twice a day I think. Will start back on them tomorrow which will have been 48 hours break which may reassemble my levels a bit!


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