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  5. Why did my doctor lower my Thyronorm dose from 62.5 mcg to 50 mcg when my lab results seem contradictory, showing a high TSH level that suggests an underactive thyroid but a high T4 level that suggests an overactive thyroid, despite my thyroid scan and antibody tests being normal?

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Why did my doctor lower my Thyronorm dose from 62.5 mcg to 50 mcg when my lab results seem contradictory, showing a high TSH level that suggests an underactive thyroid but a high T4 level that suggests an overactive thyroid, despite my thyroid scan and antibody tests being normal?

Asked by Female, 45 · 9 days ago

Your doctor likely lowered your Thyronorm (levothyroxine) because a high T4 level means there is too much active thyroid hormone in your system, which can strain your heart. While a high TSH usually suggests the opposite, protecting you from excess T4 is the immediate safety priority. Since your scans and antibody tests are normal, autoimmune issues or growths are ruled out. Sometimes, the timing of your medication or even daily supplements (like biotin) can cause these temporary, conflicting lab readings. Lowering your dose is a safe step to protect your health while your levels stabilize. Please share any supplements you take with your doctor.
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Why did my doctor lower my Thyronorm dose from 62.5 mcg to 50 mcg when my lab results seem contradictory, showing a high TSH level that suggests an underactive thyroid but a high T4 level that suggests an overactive thyroid, despite my thyroid scan and antibody tests being normal?

Answered 9 days ago

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