A member asked:

What are t3 (liothyronine) & t4?

16 doctors weighed in across 2 answers

Thyroid hormones.: The two most important forms of thyroid hormone are designated T3 (liothyronine) and T4 based on the number of iodine atoms each molecule contains. T4 is the main form made and released by the thyroid gland. Once inside cells, T4 is converted to t3, (liothyronine) which is the more active form.

Answered 3/30/2019

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T3 and T4: T4 is the hormone that is released into the blood stream from the thyroid gland and this is converted into the “more active” T3. Liothyronine is a supplement of T3 and T4 is given as levothyroxine.

Answered 10/8/2019

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Related Questions

A member asked:

Which make you lose weight more, T3 (liothyronine) or t4?

A doctor has provided 1 answer