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Can Levothyroxine intake be harmful to liver and kidney?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

Will without thyroid gland reduce lifespan? Is Levothyroxine harmful to liver and kidney? Is synthetic Levothyroxine mechanism different from the original? How T4 converts to T3? What is the side effect? Can I marry someone? I am a lady. Will I conceive? I have no cancer after nodule operation. I have a suspicious follicular adenoma.

Hello,

Welcome to icliniq.com.

I just read your query and I would like to answer your questions one by one.

1. No, being without thyroid gland will not reduce lifespan.

2. No, Levothyroxine is not harmful to liver and kidney.

3. Synthetic Levothyroxine mechanism is not different from the original.

4. T4 converts to T3 by an enzyme present in the body. There are no side effects.

And of course, you can marry someone and conceive if you are on correct treatment.

Answered byDr. Shaikh Sadaf

Medically reviewed byiCliniq medical review team

Published At March 13, 2018
Reviewed AtApril 29, 2025

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