Hi sweetpeat!sweetpeat said:Hi Shrimp
I think this is a sensible thing to try, especially if your t4 levels are below mid-range. I've recently decided to try this myself. My doctor originally started me on NDT a few years ago, which felt good at first, but eventually still felt very hypo in spite of good temps and pulse. Lab work looked pretty good too, but fatigue and brain fog were just awful. This past summer, I stopped my thyroid meds for about 6 weeks and got baseline labs. My t4 was below the reference range so my thyroid isn't putting out enough on its own. I think the NDT was masking this. I was getting just enough t4 to bring my labs within range, but not enough to remedy all my hypo symptoms. But I couldn't raise my dose because it would give me too much t3 and too low TSH. Like you, I've tried different combinations (and brands) of NDT and t3, even Cynoplus. But I had never tried t4 alone. Or a higher ratio of t4 to t3 than the 4:1.
So, I'm currently experimenting with more t4. Unfortunately, it's slow going working with t4 because I started at ground zero and I'm waiting a couple of weeks for each dosage change to settle. But since you are already taking thyroid, you could easily swap out straight t4 for the equivalent in the NDT and then take whatever amount of t3 (if any) feels good. Maybe tapering down on the t3 as you taper up on the t4. I've been doing some reading on t4 and doctors use lean body mass as a rough guideline for dosing, along with checking labs to make sure t4 levels aren't getting too high and that it's converting well to t3. I plan to get labs every six weeks or so for a while as I continue to monitor temps and pulse and other symptoms.
It will be a few months still before I know if this is going to work out for me, but so far it hasn't been any worse than what I was doing before. And my brain fog is much improved with higher t4.
I just wanted to let you know that you're not the only one who's considered trying something like this. Good luck to you!
I'm still waiting for my NP to mail me my thyroid labs, but I wouldn't be surprised if my T4 was midrange or lower, as it seems to be around that spot in most of the thyroid labs I've had done on various doses. You sound like you're in the same boat I am, great temps and pulse with continuing symptoms. With baseline labs like yours low in T4 I can see why T4 would be a very reasonable thing to try, and it is nice to know I'm not the only one to want to try this since people seem to demonize T4 on a lot of thyroid forums. My baseline labs (taken 3 years ago, ~3 weeks off meds) show both T4 and T3 around mid range http://inkypixels.co.uk/TD-Calculators/ ... late=Chart So my T4 levels definitely have room for improvement. I would think that adding 25-50mcg of Synthroid to my current dose of 2 grains NDT would be ok. I have an appointment with my NP in a few weeks and will try to coax her into giving me a Synthroid prescription then.
Have you seen the website http://www.tiredthyroid.com/ ? The author had similar troubles with getting her medication right and ended up needing additional T4 and a small dose of NDT to feel normal again. Lot of good info there.
Glad to hear the T4 is helping with your brain fog; that's such an annoying symptom. I'd love to hear how the T4 works for you a few months out! Good luck to you, as well!
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Small notes, one week on new dose of meds (2 grains vs 2.5 grains):
-temps/pulse still good (98.4-99.0, 80-90bpm)
-feel way more sluggish/cold (especially hands/feet/nose)
-more disoriented?
-less anxious
-muscle spasms in abdomen stopped
-legs feel somewhat better
That would be only a small drop in the amount of T3 I'm taking (~4.5mcg in 1/2 grain NDT IIRC) but the decrease does seem to be helping some of my symptoms.