Difference between Tetraiodothyronine and Thyroxine

What is the difference between Tetraiodothyronine and Thyroxine?

Tetraiodothyronine as a noun is thyroxine: a hormone produced by the thyroid gland. while Thyroxine as a noun is a hormone (an iodine derivative of tyrosine), produced by the thyroid gland, that regulates cell metabolism and growth.

We hope you now know whether to use Tetraiodothyronine or Thyroxine in your sentence.