A member asked:

Does a very low level tsh hormone mean hypo - or hyperthyroidism? t3 (liothyronine) is normal range, t4 is at the low level borderline.

A doctor has provided 1 answer

Low TSH: Generally indicates an excess in thyroid hormone. That may be chronic w/hyperthyroidism -- or temporary w/thyroid inflammation. See you doctor. If you're already on thyroid replacement, the dose is too high. If you're on t3, (liothyronine) get off of it as it can be dangerous and doesn't work well as chronic replacement. Use brand name T4 only.

Answered 5/18/2018

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