Switching from synthroid to thyroid-S - Thyroid UK

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Switching from synthroid to thyroid-S

Cpav profile image
Cpav
9 Replies

I’m thinking of switching from synthroid to thyroid -s, should I just stop the synthroid all at once and start on 60mcg of Thyroid-s, or wean off the synthroid and slowly add in thyroid-S? I’m doing this on my own, as my Dr thinks I’m within range so I’m fine. My reverse T3 is in the high range, FT3 is low and FT4 is high. I think I would benefit with some T3 so I thought I would try it for awhile to see how I feel.

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Clutter profile image
Clutter

Cpav,

It will help members advise if you post your thyroid results and ranges and say how much Synthroid you are currently taking.

Cpav profile image
Cpav

TSH<0.01. .32-4.00

FT4 18. 9-19

FT3 4.8. 3.1-6.2

RT3 22. 18-25

Antibodies 19. <35

I had been on 150mcg of synthroid till these results in Dec, I lowered myself to 125mcg because I was having palipatations.

I suffer from Graves’ disease and TED, I had RAI ablation 18 years ago. Dr says I’m hyper but I’m not feeling that, I have struggled with weight among other Hypo symptoms

Marz profile image
Marz in reply to Cpav

Clutter will not have seen your reply as you did not click the Green Reply Button - so technically replied to yourself :-) Easily done !

Clutter profile image
Clutter in reply to Cpav

Cpav,

125mcg Synthroid is equivalent to 2 grains of NDT. I would reduce Synthroid to 50mcg and introduce 1 grain (60mg) Thiroyd to see how you tolerate the T3 in Thiroyd. After a couple of weeks you can stop the Synthroid and increase Thiroyd to 2 grains.

You should expect very different results when you have your next blood test. FT4 will probably be considerably lower with FT3 higher in range.

Cpav profile image
Cpav in reply to Clutter

Thank you wasn’t sure if I could take both, and I really don’t want any more Hypo symtems than I already have.

Kell-E profile image
Kell-E

60mg of thyroid-s is equivalent to about 75mcg of Synthroid. So, if you completely switch over you would likely need more than one 60mg pill. One reason to do it at least a little gradually is that you don't know how you will react to taking T3. You could sub 60mg thyroid-s for half your Synthroid dose and see how it goes.

Marz profile image
Marz

Hi - you have replied to me instead of Clutter :-)

Cpav profile image
Cpav in reply to Marz

Sorry not sure how I did that. Lol

Marz profile image
Marz in reply to Cpav

😊😊

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