Low dose levothyroxine with positive antibodies but euthyroid to prevent miscarriage

[Curious123]

Has anyone who is currently euthyroid (normal thyroid function range) but with positive thyroid antibodies, taken low dose levothyroxine to help prevent miscarriage, starting 1 month before transfer? If so, when you stopped, did your thyroid function return to normal range or did you become dependent on levothyroxine, even after pregnancy?

[shaws Administrator]

I cannot answer your query but these links may be helpful.

verywellfamily.com/can-hypo...

thyroiduk.org/having-a-baby...

[Curious123 in reply to shaws]

Thanks. I’m not hypothyroid. I did venture into hyperthyroid last year with a temporary thyroiditis. It is more arhat my TgAB are consistently high. This is one of the studies linked:

hindawi.com/journals/jtr/20...

[shaws Administrator in reply to Curious123]

Thanks for your link. It is very informative.

[HungryHungryHypo]

Thanks for the link you posted above: I hadn’t read that study. Very informative.

I’m afraid I can’t help you with your question but out of curiosity, what is your TSH, FT4 and FT3?

[Curious123 in reply to HungryHungryHypo]

When last checked:

TSH 1.1 (0.4-3.5)

FT3 4.6 (2.6-6.0)

FT4 14.0 (9.0-19.0)

TgAB 10.5 (<4.1) **HIGH**

TPO 2.6 (<5.6)

TSH Receptor 0.8 (<2.1)

[SlowDragon Administrator]

Looking at previous posts you have PA and your Dad has Graves’ disease

What vitamin supplements are you currently taking

When were vitamin D, folate and ferritin levels last tested

Your thyroid results show you are under medicated

How much levothyroxine are you currently taking

[Curious123 in reply to SlowDragon]

I’m not on any thyroid medication, those are my natural thyroid levels. Vitamin D and iron are fine. My D was 79 last teared and I’ve upped to 3,000IU per day. My ferritin was over 150. They are proposing 50mg temporarily to help prevent risk of miscarriage due to positive TgAB.

[Curious123 in reply to SlowDragon]

Actually, different lab and with no antibody testing, my last thyroid results end of March (others were start of Feb) were:

TSH 0.89 (0.4-4.0)

FT3 5.0 (3.5-6.5)

FT4 19.5 (9.0-25.0)

[Marinaaa]

To me, 50mg is a high dose considering your test results, which are good. Your antibodies are very low. Something similar has been suggested to my sister but her antibodies were in the 400 and TSH around 3, and she has started with 25mg. She did have symptoms thought. She is looking for pregnancy now. She has also been given a iodine supplementation which I personally believe is mistaken as it will increase her TSH and her need for more medication, but hey I¨m not a doctor and she won´t listen to me....

If you start taking medication it can happen that you can or you can´t stop it afterwards. If you can´t its because you needed it.

You could give it a try and start with 25mg, but I believe it won´t change antibodies much. If it makes you feel better, it can also help with your natural progesterone production.

An anti-inflammatory diet can help with improving auto-inmunity, thus decreasing antibodies. But yours are low already. That could be another option. (no sugar, no processed food, no dairy, no gluten...). I would surely go for that independently of taking medication or not.

Good luck!! Keep us informed