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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.
Answered by Dr. Shaikh Sadaf

Education:

MBBS

Professional Bio:

Dr. Shaikh Sadaf is a Specialist in Diabetology and Endocrinology dedicated to providing comprehensive care for patients with hormonal and metabolic disorders. With two decades of clinical experience, she is skilled in managing diabetes, thyroid conditions, and a wide range of endocrine issues. Having trained internationally and earned prestigious memberships from leading medical colleges, Dr. Sadaf combines global expertise with a compassionate, patient-centered approach. She focuses on personalized treatment, preventive care, and long-term wellness to help patients achieve better health outcomes.

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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.

Medically reviewed by iCliniq medical review team
Published At March 13, 2018
Reviewed At April 29, 2025

Education:

MBBS

Professional Bio:

Dr. Shaikh Sadaf is a Specialist in Diabetology and Endocrinology dedicated to providing comprehensive care for patients with hormonal and metabolic disorders. With two decades of clinical experience, she is skilled in managing diabetes, thyroid conditions, and a wide range of endocrine issues. Having trained internationally and earned prestigious memberships from leading medical colleges, Dr. Sadaf combines global expertise with a compassionate, patient-centered approach. She focuses on personalized treatment, preventive care, and long-term wellness to help patients achieve better health outcomes.

This doctor is not available for online consultations on the platform anymore.

Consult other doctors in the same speciality

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Dr. Shaikh Sadaf
Dr. Shaikh Sadaf

Endocrinology

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Education:

MBBS

Professional Bio:

Dr. Shaikh Sadaf is a Specialist in Diabetology and Endocrinology dedicated to providing comprehensive care for patients with hormonal and metabolic disorders. With two decades of clinical experience, she is skilled in managing diabetes, thyroid conditions, and a wide range of endocrine issues. Having trained internationally and earned prestigious memberships from leading medical colleges, Dr. Sadaf combines global expertise with a compassionate, patient-centered approach. She focuses on personalized treatment, preventive care, and long-term wellness to help patients achieve better health outcomes.

This doctor is not available for online consultations on the platform anymore.

Consult other doctors in the same speciality
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