I'm currently taking Batch 24TO1001
I've gradually increased the dose from 1.75 grains to two in the last couple of months, because I started feeling wobbly and hypo. Now I'm feeling wobbly and hypo again.
Should I just increase by another quarter grain or is there another explanation? I have put on 6lb or so over the winter?
How have other people found this batch? Is there a varying amount of T3 in the pills?
Maybe my blog needs to add your experiences?
Thyroid S Batches
A summary of known and suspected potency of Sriprasit Pharma Thyroid S batches.
Regularly updated so please check the blog directly.
And if you have any more information, or corrections, etc., please let me know. I am entirely dependent on your experiences.
Last updated 11/02/2025
Link to blog:
helvella.blogspot.com/p/thy...
dose seems low. mine is 3 grain & i am tall/ lean build.
I’m tall was was very lean till this low ferritin hit me and gave me a belly but I only need 1.25 grains, yet a tiny petite close relative needs 175mcg of Levothyroxine which would have had me going bonkers 125 was all I could cope with but I still felt awful. Another needed 150mcg and was even more tiny. So size does not seem to correlate well with dose needs in my family. I react very rapidly to all medications & 23&me said I was a super fast reactor according to my genetics so perhaps this is more relevant than size or height to dosage requirements. But I don’t really know. That stupid so many mcg levo per kilo rule would have never been right for any of us three. Oddly they love levothyroxine and feel great on it but I felt terrible. Much better on ndt but quite a low dose is all I need.
problem with levo is conversion, hard to work out. i tried t3 at correct dose - was sleeping, hallucinating & lost half my hair. within a week of getting back on 3 grains everything stopped.
recently while waiting for late ordered thyroid-S i reduced to two grains + 10 t3 & hair started falling out again 😭. my system cant handle a lot of things & nowhere is it more obvious than with thyroid bit. thyroid must be worst managed of any major health issue.
I think I've been on this batch - but would have to get up and go downstairs to check ...
Although every prescription medication has a degree of permitted variability, it's unlikely Thyroid-S has "stopped working". It's as likely that because we've had a long gloomy cold winter, your body is needing more replacement hormones AND all the supporting vitamins, just to make enough T3 to keep up.
Personally my "summer dose" of Thyroid-S is at least 1/2 grain lower than winter. So, personally I would expect to increase as winter comes on, and yes, I would add an extra 1/4 grain now. Also, have you had your T3, D3, B12, folate and ferritin levels checked very recently?
And an extra - the metabolic production and conversion processes can get less efficient as we get older, if that may be relevant. Another joy 🤬 of ageing.
Thank you very much! I think this may be the answer.
that's interesting. never occurred seasons would matter but it makes sense
Thank you for your quick response. It's the one that always worked. I was on 1.75 grains of Naturethroid until it went west.
I had ferritin deficiency which I mistook for needing more thyroidS but it wasn’t that at all. I was cold and very hungry felt faint and so tired I could scarcely lift my feet to walk I was falling asleep trying to listen to a friend talking (embarrassing) and I have piled on weight but all an increase in TS did is send me to over medicated and a bit loopy.
Treating the ferritin deficiency has been simply awful. The iron pills made me feel really sick all the time and it hardly went up after three months of it from 11 to 21. I had to give up. So I’m at a loss as to what to do about it bar eating an iron rich diet. It makes me sick just thinking of iron I felt like I was being poisoned it was so horrid. It did make the symptoms improve tho so that is the problem. A infusion would have been better but NHS no longer gives them, unless you’re pretty much dead (at around 4 or less😱) with it - yet another stupid NHS false economy that unfairly impacts women….now if it were viagra and men they couldn’t pump it in fast enough…..😠😡🤬 .
Deffo get your ferritin checked out, as I upped my dose of thyroidS thinking it had lost potency and made myself ill because it was far too much and it wasnt the problem. The thyroid S was absolutely fine. If it is low ferritin that you have you might react better to the treatment than I have.
Not sure what TS batches mine are, one is old but is still good, the other is well within date and seems fine too. I’ll try and check the batch numbers in a week when I can see the bottles I’m away right now with a pill cutter stash.
1.25 grains was my perfect dose c9 years back when I started on it and 1.25 is still the best dose for me, but my t4 has gone higher over time which is annoying. My conversion has got worse 😖 All my attempts to add in some t3 to try and get the t4 down a bit have not met with great success.
am allergic to iron supplementation (cant remember name of it - daughter has it too). when was v bad i went to hyperbaric chamber 2x a week. i'd go 4x if i could (hours drive & gets expensive)
A few years back a lot of the NDTs seemed to have stopped working. It seemed to gradually go through all of them. I was taking nature throid at the time and whilst others were being complained about mine still seemed to be working, but eventually it no longer worked on me. The manufacturers were all contacted by Stop the Thyroid Madness and all said they had not changed their formular. I switched to buying T3, to have with my prescribed T4 and until such time I can be convinced they are all back to normal now, I will stick to buying the T3. NDT too expensive to buy just to see if it working now.
I am on batch 1004 and need more than usual. I have been taking Thyroid s for 9 years now.
The batches often vary. I started on 2.5 grains then 2.25 grains for years. now 2.75 grains.
I have no Thyroid and need the correct dose as do others. Trial and error comes to mind. I have just ordered 1000 more so will have to correct again, maybe.
I am on the same batch as you and so far it seems OK. I just ordered a new bottle and the batch number is the same again. I take 2 in the morning and one in the evening.
Have a look at your vits - the thyroid-s seems to like you having a good level of Vit D, which mine was not for a while. Difficult to get the GP to test Vit D though so you may have to do a private test.
Hope you feel better soon.
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