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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Why Is My TSH Not Reducing Even After Taking Thyroxine 100 Mg?

hello!!! i'm kimi nd my question is that 4 mnths ago i was diagnosed with hypothyroidism nd my tsh was more than 100 nd 15 days ago again a tsh test was given nd still it is more than 100 while i am taking thyroxine 100 mg regularly,why tsh is nt reducing??
Tue, 7 Jan 2014
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Endocrinologist,  's  Response
Dear Kimi, Hi! it is true that TSH moves slowly so 15 days is a short time to assess the dose efficacy with TSH. you should have checked t4 or ft4 because they move first and fast. it is only after 6 weeks of therapy that TSH will shift. Regards!
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Why Is My TSH Not Reducing Even After Taking Thyroxine 100 Mg?

Dear Kimi, Hi! it is true that TSH moves slowly so 15 days is a short time to assess the dose efficacy with TSH. you should have checked t4 or ft4 because they move first and fast. it is only after 6 weeks of therapy that TSH will shift. Regards!