Synthroid and Metastases to lymph nodes - a phase IV clinical study of FDA data

Summary:

Metastases to lymph nodes is reported as a side effect among people who take Synthroid (levothyroxine sodium), especially for people who are female, 60+ old, also take Zometa, and have Type 2 diabetes.

The phase IV clinical study analyzes which people have Metastases to lymph nodes when taking Synthroid. It is created by eHealthMe based on reports of 237,758 people who have side effects when taking Synthroid from the FDA, and is updated regularly.

What is Synthroid?

Synthroid has active ingredients of levothyroxine sodium. It is often used in hypothyroidism. eHealthMe is studying from 249,198 Synthroid users. Check the latest studies of Synthroid.

What is Metastases to lymph nodes?

Metastases to lymph nodes (cancer spreads to lymph node) is found to be associated with 671 drugs and 788 conditions by eHealthMe. Check the latest studies of Metastases to lymph nodes.

On Jul, 11, 2026

237,758 people reported to have side effects when taking Synthroid.
Among them, 151 people (0.06%) have Metastases to lymph nodes.

Could Synthroid cause Metastases to lymph nodes?

Among these 151 people:

What is the gender of people who have Metastases to lymph nodes when taking Synthroid? *

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What is the age of people who have Metastases to lymph nodes when taking Synthroid? *

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* Approximation only. Some reports may have incomplete information.

Do you take Synthroid and have Metastases to lymph nodes?

- Check whether Metastases to lymph nodes is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

Effectiveness of, long term effects of, and alternative drugs to Synthroid:

Synthroid (249,198 reports)

Metastases to lymph nodes treatments and more:

Metastases to lymph nodes (10,376 reports)

How severe was Metastases to lymph nodes and when was it recovered:

Metastases to lymph nodes in Synthroid

Expand to all the drugs that have ingredients of levothyroxine sodium:

Metastases to lymph nodes and drugs with ingredients of levothyroxine sodium (309 reports)

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Synthroid:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all the drugs that are associated with Metastases to lymph nodes:

Metastases to lymph nodes (671 drugs)

Browse all the conditions that are associated with Metastases to lymph nodes:

Metastases to lymph nodes (788 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on levothyroxine sodium (the active ingredients of Synthroid) and Synthroid (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.