A 32-year-old male asked:
does taking t4 only for a long period of time cause ones cortisol and iron levels to become low? should 1 correct these b4 starting ndt
1 doctor answer • 1 doctor weighed in
Internal Medicine 33 years experience
Not likely: Thyroid hormone does not cause iron to go down. However people with a well proven low cortisol (adrenal insufficiency) should correct their adrenal insufficiency before taking thyroxine (t4) as thyroid hormone can increase metabolism of cortisol. This does not apply to people with normal cortisol production, who can compensate very well for this effect.
Last updated Feb 21, 2014
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