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A member asked:
Can metformin interfere with the absorbtion of thyroxine and cytomel (liothyronine)?
A doctor has provided 1 answer
Not reported: Metformin has not been reported to interfere with the absorption of thyroid hormones. One report suggested it could lower TSH levels in some patients but with no effect on thyroid hormone levels (t4). I recommend you have your levels checked if symptomatic or as recommended by your provider.
Answered 6/10/2014
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