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I would like to know why manufacturer's use levothyroxine rather than thyroxine in their thyroid medications? Levo has heavier sodium molecule

1 doctor weighed in
Dr. Clarence Grim
Internal Medicine - Endocrinology

In brief: Thyroxine

22M asks about diff between levothyroxine and thyroxine and notes Levo has heavier Na molecule.
ANS: my recollection is that most Na is not of the heavy type. Recommend you look at the chemistry of Na at wikipedia for more details about heavy Na.

In brief: Thyroxine

22M asks about diff between levothyroxine and thyroxine and notes Levo has heavier Na molecule.
ANS: my recollection is that most Na is not of the heavy type. Recommend you look at the chemistry of Na at wikipedia for more details about heavy Na.
Dr. Clarence Grim
Dr. Clarence Grim
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