Increase levothyroxine or explore options for T3 - Thyroid UK

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Increase levothyroxine or explore options for T3

Wrayofsunshine profile image
8 Replies

I've been on levothyroxine 75mcg for over a year now, still struggle with fatigue, brain fog, muscle aches etc. Not debilitating the whole time, but feel like I'm never really able to function to full capacity. Have other health issues going on, seem to be going through early menopause too (age 43) and many symptoms may cross over. Also developed wrist pains (possible carpal tunnel) which I have read can be relates to poorly managed thyroid.

Had bloods done this week with results as follows:

TSH 2.48 (0.27-4.2m/UL)

T4 17 (12-22pmol/L)

T3 3.8 (3.1-6.8 pmol/L)

My question is, should I be heading to the GP to see if I can get an increase in levo? Or should I consider a private doctor to see if T3 would help.... or both? Any advice gratefully received.

I haven't had my vitamins tested for a long time so know that needs looking at as well at some point soon.

A friend has offered to help financially with private costs if I do need to go private but don't want to incur unnecessary costs if an increase in levo will be beneficial.

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8 Replies
TiggerMe profile image
TiggerMeAmbassador

First port of call is your GP to request a dose increase aim for 25mcg but I'd be inclined to take 12.5mcg extra and see how that goes... and get your vits and mins tested

TSH 2.48 mIU/L (0.27 - 4.2) 56.2%

Free T4 (fT4) 17 pmol/L (12 - 22) 50.0%

Free T3 (fT3) 3.8 pmol/L (3.1 - 6.8) 18.9%

T4:T3 Ratio 4.474 

SlowDragon profile image
SlowDragonAmbassador

on your profile you say

Taking B vits, Vit D, selenium and zinc to try and help as well.

I haven't had my vitamins tested for a long time so know that needs looking at as well at some point soon.

How long since you tested

Test at least annually

How much vitamin D do you take

What are your most recent vitamin D, folate, B12 and ferritin results

Also did you remember to stop vitamin B complex before your tests

IMPORTANT......If you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 5-7 days before ALL BLOOD TESTS , as biotin can falsely affect test results

endo.confex.com/endo/2016en...

endocrinenews.endocrine.org...

In week before blood test, when you stop vitamin B complex, you might want to consider taking a separate folate supplement (eg Jarrow methyl folate 400mcg) and continue separate B12 if last test result serum B12 was below 500 or active B12 (private test) under 70:

Are you on gluten free and/or dairy free diet

SlowDragon profile image
SlowDragonAmbassador

Your TSH has risen significantly since last test

Guidelines of dose Levo by weight

approx how much do you weigh in kilo

Even if we frequently start on only 50mcg, most people need to increase levothyroxine dose slowly upwards in 25mcg steps (retesting 6-8 weeks after each increase) until eventually on, or somewhere near full replacement dose (typically 1.6mcg levothyroxine per kilo of your weight per day)

cks.nice.org.uk/topics/hypo...

bnf.nice.org.uk/drugs/levot...

nhs.uk/medicines/levothyrox...

Adults usually start with a dose between 50 micrograms and 100 micrograms taken once a day. This may be increased gradually over a few weeks to between 100 micrograms and 200 micrograms taken once a day.

Some people need a bit less than guidelines, some a bit more

TSH should be under 2 as an absolute maximum when on levothyroxine

gponline.com/endocrinology-...

Graph showing median TSH in healthy population is 1-1.5

web.archive.org/web/2004060...

Comprehensive list of references for needing LOW TSH on levothyroxine

healthunlocked.com/thyroidu....

onlinelibrary.wiley.com/doi...

If symptoms of hypothyroidism persist despite normalisation of TSH, the dose of levothyroxine can be titrated further to place the TSH in the lower part of the reference range or even slightly below (i.e., TSH: 0.1–2.0 mU/L), but avoiding TSH < 0.1 mU/L. Use of alternate day dosing of different levothyroxine strengths may be needed to achieve this (e.g., 100 mcg for 4 days; 125 mcg for 3 days weekly).

sciencedirect.com/science/a...

The optimal daily dose in overt hypothyroidism is 1·5–1·8 μg per kg of bodyweight, rounded to the nearest 25 μg

Lulu2607 profile image
Lulu2607

Hi Wrayofsunshine . If your results are in range but you are symptomatic then a GP should consider an increase in your levo. There is still room for an increase given your latest results and most of us hypos feel better when TSH is closer to 1 and T4 a bit higher than it is at the moment. It's also a good idea to keep an eye on vitamin levels etc as it all contributes to overall health and helps the levo work more effectively.

DippyDame profile image
DippyDame

Your T4 to T3 conversion is very poor...high FT4 with low FT3

...hence low FT3.

Increasing levo to 100mcg may help a little but unlikely to resolve the issue because FT3 is very low

You have room to further increase to 125mcg

However if 125mcg doesn't help you may need to consider adding T3.

Testing will reveal your levels.

We aim to have both Frees approaching 75% through their respective ranges

Try increasing levo first

Have you optimised vit D, vit B12, folate and ferritin to support thyroid health?

Go to your GP and ask for a 25mcg increase...your results clearly indicate this is required

Good luck!

jgelliss profile image
jgelliss in reply toDippyDame

Yes!!! DD you are Spot On. Being on my Thyroid Journey I would never believe the importance of nutrients . They are Great Components with our Thyroid meds. I wish Dr's would know more about this. That why patients always feel that their thyroid dosage is always off. Thank you for your Great Posts.

McPammy profile image
McPammy

I would think seriously about trialing T3 liothyronine alongside your levothyroxine dose. Your T3 looks too low. You could increase your levothyroxine slightly but make sure you don’t go over the range as that could cause extra symptoms. If it was me and knowing how long these things can take through a GP I’d go private now and request a trial of T3 liothyronine combined with your usual levothyroxine medication. To go private you’ll need a GP referral letter and latest bloods. It’s quite simple really and you should be seen quite quickly. I see a private only endocrinologist who was suggested to me to see on here. He is brilliant and helped me straight away when the NHS did nothing. Private message me if you’d like his details.

Wrayofsunshine profile image
Wrayofsunshine

Thanks for all the replies, life has been so hectic for the last year I've let things slide and not been looking after myself very well or been regular with taking vitamins etc. My aim is to really work on this in the next few months, see if I can get an increase in levo from the GP and see where things are in perhaps 3 months time. Could someone send me in the right direction for a post telling me when is best to take the various supplements, which can be taken together and how far from taking levo etc? I can't remember and need a clear plan! Thank you ever so much for all the advice, you are all so helpful steering me in the right direction again. 😀

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