Is my T4 still too high ?

[Simplyred57]

I’ve just had my bloods done and my results are the same as last year except my T3 has come down from 6.2 to 6.0

I take 100mcg 5 days & 75mcg 2 days a week along with 10mcg Thybon all in one dose.My question is should I reduce Thyroxine to try to bring it down a bit more as I’ve read there are risks with having a high T4 when taking T3, maybe another day at 75mcg. I’ve not spoken to my Endo yet so not sure whether to suggest it or just try without telling him.

I feel ok but lots of aches and joint pain.

Thank you in advance☺️

[Jaydee1507 Administrator]

Can you tell us some details about how you took the test?

What time of day was it?

When did you take your last doses of both Levo & T3 prior to the test? Recommended timing is 24hrs for Levo & 8-12hrs for T3.

How are your vitamins looking? What supplements are you taking?

[Simplyred57 in reply to Jaydee1507]

Blood test done as protocol done at 9am , taking B complex and vitamin with K2 , and magnesium citrate just waiting for medichecks thyroid Thursday then will get advanced bloods done .

[Jaydee1507 Administrator in reply to Simplyred57]

You could afford to drop a day or so of 100mcgs down to 75mcgs.

Most people need both FT4 & FT3 to be around 70% on combi treatment.

[Simplyred57 in reply to Jaydee1507]

thank you maybe reduce one more day and see if it brings both levels down a bit.

[Buddy195 Administrator]

It’s very much trial & error to find an optimal dose. How did you feel on 75mcg Levo plus 10mcg Lio daily?

Can you share key thyroid vitamin levels (folate, ferritin, B12 and vit D)?

[Simplyred57 in reply to Buddy195]

My T4 went down to 17 (same range ) last time my endo reduced to 75mcg a day and I felt terrible so might just try an extra day and retest in 8 weeks with medichecks.

[greygoose]

My question is should I reduce Thyroxine to try to bring it down a bit more as I’ve read there are risks with having a high T4 when taking T3

I've never heard that before. What sort of riskes? The only risk I can see is that too much of your T4 could be converted to T3 and send your FT3 over-range. But even that's not much of a risk. And your FT3 is not over-range. So, I don't think it has anything to do with taking T3.

On the other hand, long-term high levels of FT4 do put you at risk for other health problems. See jimh111 's posts for more details about that.

So, you could try reducing your levo slightly, see what happens. But, when reducing doses, I always recommend doing it by yourself and not involving a doctor, in case you need to put it back up again. Doctors love reducing doses but are not to keen on putting them back up!

[Simplyred57 in reply to greygoose]

Thank you GG yes it was the posts by Jimh111 that I was reading about high levels of T4 , Im going to just reduce another day and retest with medichecks in 8 weeks as I need to test my vitamins aswell, so will just play the game with my endo for now and keep this to myself🤐😊

[greygoose in reply to Simplyred57]

Sounds like a plan.