Treatment for low Free T3: Hi, My free T4 is mid... - Thyroid UK

Thyroid UK

139,479 members163,720 posts

Treatment for low Free T3

Lilly12255 profile image
4 Replies

Hi,

My free T4 is mid range and My TSH is still too high despite taking levothyroxine but my Free T3 is below the normal range, suggesting a bad conversion from T4 into T3.

Anyone knows how a low T3 can be treated? It looks like increasing the T4 is not helping my T3

Thanks

Written by
Lilly12255 profile image
Lilly12255
To view profiles and participate in discussions please or .
Read more about...
4 Replies
SeasideSusie profile image
SeasideSusieRemembering

Lilly12255

What are your actual results, with reference ranges?

Before considering adding T3, we need TSH down to 1 or below to give the highest possible FT4 then see what conversion is like. Mid-range FT4 isnt really high enough.

We also need optimal nutrient levels before adding T3 - Vit D, B12, Folate and Ferritin.

Lilly12255 profile image
Lilly12255

I see. Thanks. Yes, there is still a lot of room for this. Had posted my results in earlier post and read about T3 in one of the links you sent. TSH at 2.88 so too high. T3 at 2.6 (2.9-4.9 range). Vitamins all mid to high range

SlowDragon profile image
SlowDragonAdministrator

How much levothyroxine are you currently taking?

Dose levothyroxine is increased up slowly in 25mcg steps upwards

The aim of Levothyroxine is to increase the dose slowly in 25mcg steps upwards until TSH is under 2 (many patients need TSH significantly under one) and most important is that FT4 is in top third of range and FT3 at least half way through range

NHS guidelines on Levothyroxine including that most patients eventually need somewhere between 100mcg and 200mcg Levothyroxine.

nhs.uk/medicines/levothyrox...

LAHs profile image
LAHs

My personal experience: when I was under-medicated on Levothyroxine (i.e. T4 only) was that as I bumped up my dose of Levo (more or less on my own) I got to a point, it was either 137 or 150 mcg, I'm sorry it was a long time ago. I just kept increasing my dose until 1.) I felt well and 2.) I was generating an optimal amount of T3. Unfortunately I didn't know enough about the whole subject and my Endo was under educated in the field of Thyroidism, so she jumped in there and told me my TSH had become suppressed and that I had to reduce my Levo dose immediately! Like a fool I did and that was the end of my feeling well.

I would suggest you increase your T4 dose and keep an eye on your T3 generation. Do not assume you do not convert while you are under-medicated. Do not even think that you are anywhere near you correct dose with a TSH of >1. You are on a difficult and frustrating path but stick to it, you will get there, most of us on this site has walked that path.

During my despair of not being allowed to take a Levo dose which made me feel well I discovered Armour NDT and I returned to good health. but see if you can do it by simply increasing your Levo, it is possible.

Not what you're looking for?

You may also like...

Low Free T3 and Reverse T3

someone please help with my results , My TSH is 2.5 range is 0.50-5.00 Free T4 is 19.0 range is...

Advice on low Free T3 results

others. TSH is 1.21 (0.35 - 3.5 range) T4 is 14 (8 - 21 range) Free T3 is 3.5 (3.8 - 6 range) For...

poor conversion and low free t3

I do to increase my poor conversion and low free t3 please ? Thanks in advance , x

Low total T3 but normal free T3?

it possible to have low total T3 but a normal Free T3? The only time I ever had Free T3 measured,...

TSH extremely low but low-ish free T3 and free T4

Isabella Wentz. I just need to know why my TSH is so low but my free T3 and free T4 are not where...