Treatment of hyperthyroidism: I was diagnosed... - Thyroid UK

Thyroid UK

140,947 members166,079 posts

Treatment of hyperthyroidism

ursa profile image
ursa
7 Replies

I was diagnosed with hyperthyroidism some months ago.

My T4 was at 45, and my TSH had given up with a reading of <.01

I was put on carbimazole, initially 40mg/day. This got my T4 down to 11. I was told to reduce the carb to 20mg/day

But, my latest blood tests shows that my TSH is now approaching 10, whilst my my T4 remains at 11.

I was told to further reduce my carb to 10mg/day.

Is the TSH fighting with the carbimazole?

Written by
ursa profile image
ursa
To view profiles and participate in discussions please or .
Read more about...
7 Replies
shaws profile image
shawsAdministrator

I am sorry you've not yet had a response. I have hypothyroidism but a member who is hyperthyroid will reply when they read your post.

ursa profile image
ursa in reply toshaws

Thank you

PinkNinja profile image
PinkNinja

Do you know what the reference range is for the t4? It could be low or high depending on the lab. Reference ranges vary a lot from lab to lab.

I suspect your t4 is actually at the low end of the scale, hence your high TSH. If your tsh is approaching 10 it means your thyroid isn't producing enough t4 and t3 and that is likely why your doctor wants to reduce the carbimazole further.

Ideally you want your TSH below 3 and your t4 in the upper part of the range. It sounds like the carbimazole is still suppressing your t4 production too much and this is why your TSH is rising. A further decrease should hopefully allow you t4 level to rise which should then cause your TSH to drop. If this doesn't work, your doctor may stop the carb altogether. If that doesn't help then you may need thyroid hormone replacement. Hopefully the reduction in carbimazole does the trick. There can sometimes be a slightly delayed response to a reduction.

ursa profile image
ursa

tsht4

Sep-062.3217.3

Nov-072.3118.6

Jul-082.0217.9

Mar-093.417.1

Mar-105.218.6

Nov-104.119.8

Oct-113.915.7

Aug-122.713.9

Jul-133.315.1

Mar-141.115.3

Feb-150.4110.5

Mar-154.211.4

Apr-159.311

Nov-14<.01 36.2

Dec-14<.01 45

Those are my readings since 2006, something went wrong in Nov2014. I did not take any form of medication before this date.

PinkNinja profile image
PinkNinja in reply toursa

ok. From your previous results your current t4 look to be on the low side. Your doctor is wise to reduce your carbimazole and may need to stop it altogether. Too much carbimazole means that your thyroid doesn't produce enough thyroid hormone and this means that your TSH rises to try and get it to produce more. This should come down when the carbimazole is lowered enough to raise your t4 level.

I hope you and your doctor manage to get it under control soon. It must be very frustrating to feel poorly and not know when things are going to get better.

ursa profile image
ursa

I am now at 10mg/day carb. I am interested in my next blood test result.

Thanks for the input.

ursa profile image
ursa

My latest results taken on 20/05/2015 were

T4 14.6

TSH 1.1

My GP has further reduced the carb dosage to 5mg/day.

It seems that I am losing hair since I was at the lower range of 'normal.

Will this stop now?

Not what you're looking for?

You may also like...

Graves disease

Hi I have been diagnosed and treated for Graves' disease for over three years. Saw consultant back...
ali56 profile image

Being treated for Graves' Disease and wanting to conceive

Hi! I'm new here! My husband and I were hoping to start trying for a family this year but this has...
TheGraveOne profile image

Depression and Hyperthyroidism??

Hi All, Can anyone help? I had a really bad experience of anxiety just before Christmas. Couldn't...
ki41 profile image

Hyperthyroidism toxic multi nodular goitre - the next step

Saw my endo 3 weeks ago and after 6 months of 40mg carbimazole a day my T4 is down to 10 from 39.8,...
CSK1 profile image

Hyperthyroidism: Is my starting treatment correct?

Had blood taken on 6/11 as I thought I might be hypo alongside the peri-menopause however it turns...

Moderation team

See all
SlowDragon profile image
SlowDragonAdministrator
PurpleNails profile image
PurpleNailsAdministrator
RedApple profile image
RedAppleAdministrator

Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.

Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.