Metformin : I was diagnosed with diabetes 2... - Thyroid UK

Thyroid UK

137,812 members161,641 posts

Metformin

Trelissa profile image
6 Replies

I was diagnosed with diabetes 23 years ago. At some point I was popped on to metformin. It caused lactate acidosis so they reduced it - still felt exhausted etc.. Anyway I had to have a major operation and was taken off it. I was kept off it due to the need to be resuscitated during the operation. That was when hyperthyroidism kicked in. I have since found out I have had this for a while, but when doing my thyroid function blood test they should have been making adjustments for metformin as it it affects the results. Has anyone else experienced this?

Written by
Trelissa profile image
Trelissa
To view profiles and participate in discussions please or .
Read more about...
6 Replies
SlowDragon profile image
SlowDragonAdministrator

Metformin often lowers TSH and vitamins, especially B12 and magnesium

cureus.com/articles/50564-e...

B12 and Metformin

gov.uk/drug-safety-update/m...

magnesium and Metformin

ncbi.nlm.nih.gov/pmc/articl....

Tugun profile image
Tugun in reply to SlowDragon

Thanks Slow Dragon

RedApple profile image
RedAppleAdministrator

Trelissa, 'That was when hyperthyroidism kicked in. '

Has your GP done *full* thyroid blood testing since you've *not* been taking metformin? If only TSH has been tested and found to be below range, that is not a definite indicator of hypERthyroidism. FT4 or FT3 (or both) need to also be above range for hypERthyroidism.

Trelissa profile image
Trelissa in reply to RedApple

My endocrinologist did the full tests I was already seeing her as I have tumours on my adrenals. The TSH had come back and they had to do some emergency tests whereby thyroitoxinisis, hypercalcemia (parathyroid also) and automone disorder were also diagnosed. No one had done tests further that TSH in the past,

Trelissa profile image
Trelissa in reply to Trelissa

I also have my occipital and hippocampus damaged from birth. I have read that the hippocampus also has a role in regulating the thyroid

Trelissa profile image
Trelissa in reply to Trelissa

Do you have light sensitivity?

You may also like...

metformin

ive been put on metformin now type 2 diabetes dr said to take in morning how long after levo should...

Query on thyroxine and metformin

that I have been gaining weight despite initially losing some when I started thyroxine. Also, I...

Metformin and levo

will not have another blood test until early September. I have also been started on metformin 500...

Armour and Metformin

Does anyone have any thoughts on this, my wight has gone through the roof since taken thyroid meds?...

Metformin and hypo

underactive thyroid and she said 'your thyroid is normal and you can't let these affect your...