Free T3 levels on 75mcg t3 each day: I have been... - Thyroid UK

Thyroid UK

137,134 members160,809 posts

Free T3 levels on 75mcg t3 each day

CaptForest profile image
5 Replies

I have been taking 75mcg t3 each day. I Would like to know what levels of free t3 i can expect to see on blood work.

I have seen that members on this form have used doses upwards of 100mcg t3. So if anyone can comment with what my numbers should realistly come back as.

I take the t3 all right before bed around mid night, if the blood is taken at about 9 or 10 am what should i expect.

thanks for all the help :)

Written by
CaptForest profile image
CaptForest
To view profiles and participate in discussions please or .
Read more about...
5 Replies
Clutter profile image
Clutter

Captforest, you should expect to see suppressed TSH <0.03, FT4 below range and FT3 towards the top or over range.

CaptForest profile image
CaptForest in reply to Clutter

so when my results came back at 4.6 pg/ml that is standard?

Heloise profile image
Heloise in reply to CaptForest

I think we all try to reach levels that make us feel well and it may take 75 mcg. for you but 100 mcg. for someone else to reach the same level. Without having the ranges, it's difficult to know if you are in the upper third. I doubt that 4.6 is high enough so how are you feeling? Testing gives you an idea you see what you may need to do to reach an optimal level for your well being.

I made the mistake of going 24 hours without T3 before the blood test. I think what you are going to do will give a more accurate reading.

Clutter profile image
Clutter in reply to CaptForest

CaptForest,

There is no standard result, results are individual. If you post your results with the lab ref ranges members will advise whether you are optimally medicated.

greygoose profile image
greygoose

Would be better if you didn't take the T3 the night before because that will give you a false high ft3 and a false low TSH. Which could result in the doctor reducing your dose!

It would also be better if you could possibly have the test at 8 rather than 9/10. What the results will look like is a highly individual thing, but low TSH and T4 and high T3 are what most people get.

Hugs, Grey

You may also like...

Free T3 levels compared to Free T4

Hi all Can someone please tell me whether free T3 and free T4 should both be high or low at the...

T3 75mcg capsules in Mexico

questions: 1) Has anyone taken this brand? 1) It is a much higher dose (75mcg), and I am...

Help with free t3 and free t4 levels

months ago and since then have felt terrible physically and mentally. Have had an awful time losing...

What level should my Free T3 be?

makes a difference. Can any one advise me what a really good T3 level should be please? Many...

High Free T3 Level on recent blood test

I have recently received the results of a blood test which I asked my G.P. for. My free T3 level is