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What strategies do you employ for adjusting the dosage of levothyroxine in hypothyroid patients who experience significant weight loss or are initiated on GLP-1 receptor agonists?

How often do you recommend monitoring thyroid function tests in these situations?
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How do you adjust LTX dosage when treating patients with GLP1 R agonist?

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1 Answer
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Endocrinology · Tufts Medical Center Physicians Organization
Answered on

In spite of significant weight loss, some patients may not require a dosage change for levothyroxine while others may require a dosage reduction. It is very reasonable to recheck a TSH with free T4 after a 10% weight loss to see if a dose adjustment is needed. Rapid weight loss may lead to a tempora...

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