Thyroid UK
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Correct dose and vitamin levels

Hello all, I’ve got my test results and trying to find the best dose of levo. Please can I have your help. On ferritin, folate, b12 and vit d.

07/08. tsh 6.0 ft4 10. No levo

02/11 tsh 0.010 ft4 20. 125mg levo

4/12 tsh 0.16 ft4 12. 75mg levo

Range tsh 0.2-4.5 mu/l

FT4 9-21 pmol/l

Also can you help with vitamin.

B6 523 range 250-680

B1 477 range 275- 675

Thanks

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Chaca,

The best dose of Levothyroxine is that which makes you feel well. Your doctor would do better adjusting dose in 25mcg increments otherwise your TSH levels will be yo-yoing up and down. It appears your doctor is dosing by TSH level. I would refuse further dose reductions until doctor agrees to test FT4 and FT3 too and only agree to a reduction if FT3 is over range.

B6 and B1 are high in range so unlikely to be deficient.

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Sorry clutter that was ft4, I have adjusted my post. my bowel issues have came back again. I was started on 75mg and it helped my bowel issues and then they popped me up to 125 and now back down to 75.

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Chaca,

It's a pity your GP reduced dose from 125mcg. FT4 was top of range but within range so despite suppressed TSH you weren't overmedicated. Perhaps you could ask your GP to increase dose to 100mcg which will raise your FT4 and hopefully won't leave your TSH as low as 125mcg did.

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That was the endo who did that 😬

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Chaca,

Ask endo then :)

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Thanks, I’m going to ask them :)

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