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Potency of T3 vs T4 medications
I have read that T3 is "several times" more potent than T4, when taken for hypothyroidism. Does anyone know specific numbers? range? For example, if I wanted to replace 25mcg of T4 with T3, how much T3 would that be?
No problem. I've done so much research on this stuff, I feel like I should have a medical degree by now. Glad to help. Good luck.
Thanks a lot! These are the first "hard' numbers I've seen. Just trying to keep the doctors in line!
On an average it's usually 2 or 2.5 times as potent as T4, depending on the brand. Cytomel is 2 times as strong as Synthroid, as an example. However, T3 is not as long lasting. The T4 gets converted to T3 while the T3 is just absorped. Depending on your symptoms you might have to take the T3 dosage a few times a day as opposed to only one T4 dosage. Hope this helps.
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