Euthyrox and Iron deficiency - a phase IV clinical study of FDA data

Summary:

Iron deficiency is reported as a side effect among people who take Euthyrox (levothyroxine sodium), especially for people who are female, 60+ old, also take Pantoprazole, and have Psoriasis.

The phase IV clinical study analyzes which people have Iron deficiency when taking Euthyrox. It is created by eHealthMe based on reports of 8,613 people who have side effects when taking Euthyrox from the FDA, and is updated regularly.

What is Euthyrox?

Euthyrox has active ingredients of levothyroxine sodium. It is often used in hypothyroidism. eHealthMe is studying from 8,740 Euthyrox users. Check the latest studies of Euthyrox.

What is Iron deficiency?

Iron deficiency is found to be associated with 692 drugs and 665 conditions by eHealthMe. Check the latest studies of Iron deficiency.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 27, 2026

8,613 people reported to have side effects when taking Euthyrox.
Among them, 33 people (0.38%) have Iron deficiency.

Among these 33 people:

What is the gender of people who have Iron deficiency when taking Euthyrox? *

female: 100 %
male: 0.0 %

What is the age of people who have Iron deficiency when taking Euthyrox? *

What are other drugs people take besides Euthyrox? *

What are other side effects people have besides Iron deficiency? *

Insomnia (sleeplessness): 28 people, 84.85%
Fatigue (feeling of tiredness): 28 people, 84.85%
Diarrhea: 27 people, 81.82%
Hypokalemia (low potassium): 26 people, 78.79%
General Physical Health Deterioration (weak health status): 26 people, 78.79%
Weakness: 26 people, 78.79%
Rashes (redness): 26 people, 78.79%
Memory Loss: 25 people, 75.76%
Joint Pain: 25 people, 75.76%
Itching: 25 people, 75.76%

What are the existing conditions these people have? *

Psoriasis (immune-mediated disease that affects the skin): 3 people, 9.09%
Thyroid Mass: 1 person, 3.03%
Retroperitoneal Cancer (cancer between the peritoneum and the posterior abdominal wall): 1 person, 3.03%
Metastases To Liver (cancer spreads to liver): 1 person, 3.03%
High Blood Pressure: 1 person, 3.03%
Haemorrhoids (a swollen vein or group of veins in the region of the anus): 1 person, 3.03%
Cholangiocarcinoma (a cancer that forms glands or secretes significant amounts of mucins): 1 person, 3.03%
Breast Cancer: 1 person, 3.03%

* Approximation only. Some reports may have incomplete information.

Do you take Euthyrox and have Iron deficiency?

- Check whether Iron deficiency 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 Euthyrox:

Euthyrox (8,740 reports)

Iron deficiency treatments and more:

Iron deficiency (11,260 reports)

Browse all side effects of Euthyrox:

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 Iron deficiency:

Iron deficiency (692 drugs)

Browse all the conditions that are associated with Iron deficiency:

Iron deficiency (665 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on levothyroxine sodium (the active ingredients of Euthyrox) and Euthyrox (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.