I am trying to find out if levothyroxine comes from pig, or is it 100% natural.
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I am trying to find out if levothyroxine comes from pig, or is it 100% natural.
Nope, it neither comes from a pig nor is it 100% natural.
Levothyroxine is a synthetic (man-made) version of the principle thyroid hormone, thyroxine (T4), that is made and released by the thyroid gland.
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