Atrial Fibrillation (AFib) Support Group
Atrial fibrillation (AF or afib) is an abnormal heart rhythm (cardiac arrhythmia) which involves the two small, upper heart chambers (the atria). Heart beats in a normal heart begin after electricity generated in the atria by the sinoatrial node spread through the heart and cause contraction of the heart muscle and pumping of blood.
get palpatations. And have to back off the dose for awhile.
12 hours or more. [I have stopped the T3] does this harm the heart.
I know when the heart skips beats that is not good. How bad is it, in
your opinion?
This website says time release is the safest/best to use:
http://thyroid.about.com/od/hypothyroidismhashimotos/a/Thyroid-Patients-Do-You-Need-T3-Natural-Desiccated-Thyroid.htm
Keep in mind that many endocrinologists are resistant to the idea of T3 treatment, despite the research findings. They cite concerns that excessive doses of T3 could cause heart palpitations, or other side effects. It's important to note, however, that because T3 is the active hormone, it can have an over-stimulatory effect on heart rate and pulse in some people, especially those with a history of heart disease, the elderly, and those with heart irregularities like mitral valve prolapse. T3-savvy physicians evaluate the safety of T3 as compared to the potential benefits on a case-by-case basis. Even in those patients who do not have any heart or age-related issues that may make T3 problematic, some patients are simply more sensitive to T3. The heart is very sensitive to thyroid hormone in general, and for some people, even low doses of Cytomel or generic liothyronine can cause a rise in pulse, or heart palpitations. For those patients, physicians often recommend the time-released/ sustained-release/ slow-release form of T3, available by prescription from compounding pharmacies. Some integrative physicians, in fact, believe that the slow-release T3 is actually the optimal form for supplemental T3, as it more closely resembles the body's own conversion to and release of T3, and because the slow-release form is less likely to cause any side effects.
Heres a website that talks about T3 safety:
http://www.stopthethyroidmadness.com/healthy-heart-with-t3/
petey
got palps. There is some T3 in the Armour but it was making me very
tired so we decided to try the Cytomel. No go. I'll just stick with the
Armour.
daisy, I had exactly the same response.
About one year ago, I read a report that the Armour Thyroid had a bad batch and the dosage was NOT precise. Any way, my endo doctor always refused to prescribe T3 for me because of the consistency problem with pig based T3 thyroid meds. Finally, 2 years ago, another doctor prescribed the synthetic form of the T3 which is always a precise dosage. After starting to take the T3, my lack of energy went away and no problem with causing any irregular heart beat. My blood tests also confirmed my TSH, T4, and T3 levels were just fine.
Also, my wife takes both the T4 and synthetic T3 (much higher dosage than me) and she has no problem either.
Please ask your doctor for synthetic T3 rather than any pig based T3, which may Not be as precise as the synthetic form. T3 is the active form of thyroid hormone. So, if it is over dosed, it can cause all kinds of heart problems .
Note - You might have to go to a Mixer Pharmacy if the dosage is not standard for off-the-shelf T3. I think the off-the-shelf T3 comes in 5, 10, and 25 mcg. I take 12.5 mcg, so I have to get it from a mixer pharmacy. My wife takes 25 mcg, so she gets it from a regular pharmacy (CVS).
Scott
results. When I was put on Armour it worked very well. No sweats
or palps with it.
I hear you. Are you sure that your dosage was correct and it was NOT too much from the "compounded mix"? Are you sure the compounded mix used the "SYNTHETIC" from of the T3 compare to animal base T3? Please find out about the above before deciding the synthetic form does not work for you.
Also, anybody with afib and/or thyroid problem must read the "Stop the Thyroid Madness" book and/or the book by Dr. Brownstein M.D. After reading the two books, I fired my endocrinologist after going to her for 10 year. She never tested me for T3 thyroid hormone and she was giving me only T4 (Synthroid). I went to my regular doctor, got the thyroid panel test (TSH, T4, free T3), and asked him to give me the T3 (the synthetic form) in addition to T4. I started the T3 at very low dosage (5 mcg per day), went for blood test every 2 months. Based on the blood test, my doctor increased the T3 dosage and now I am at 12.5 mcg. It took about 8 months before my T3 was okay and I felt myself again.
So, please read the link that petey posted and get the book. You will do yourself a favor, believe me, I have been there :-) Average doctor does NOT know enough about the thyroid, I am talking about even the specialists. You got to read books to understand what you should do.
Scott