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A member asked:

Can an overdose of thyroxine be detected weeks later by a blood test?

A doctor has provided 1 answer

About 1-2 weeks.: The effects of overdosing appear 6 hours to 11 days after ingestion.

Dr Brown agreed

Answered 9/28/2016

5.9k views

Thank

Related Questions

A member asked:

I was on Synthroid (thyroxine) for over 10 years. Internal med. Doc. Prescribed before blood test suggesting i had hypothroid? Last yr. Started having fatique,

A doctor has provided 1 answer

A member asked:

Been to 2 endos. Had half my thyroid removed. One guy says I should be on Synthroid (thyroxine) to stop remaining lobe from being over worked other said not needed due to normal blood tests. Who is right?

2 doctors weighed in across 2 answers

A member asked:

I take 25 mg thyroxine sodium tablet every day (tsh 9.6) will taking medicine affect repeated blood test result?

4 doctors weighed in across 3 answers

A member asked:

How long does it take for a new level of Synthroid (thyroxine) to take effect so that I can get a repeat blood test for my TSH which was 0.01?

A doctor has provided 1 answer

A member asked:

I have hypothyroidism and im on Synthroid (thyroxine) 137 mcg 1/2 tab daily. My last blood test showed... TSH: 0.89, Free T4: 1.9. Is this to high?

A doctor has provided 1 answer

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