Tecfidera and Hyperthyroidism - a phase IV clinical study of FDA data

Summary:

Hyperthyroidism is reported as a side effect among people who take Tecfidera (dimethyl fumarate), especially for people who are female, 50-59 old, have been taking the drug for 2 - 5 years also take Ampyra, and have Gait disturbance.

The phase IV clinical study analyzes which people have Hyperthyroidism when taking Tecfidera. It is created by eHealthMe based on reports of 129,391 people who have side effects when taking Tecfidera from the FDA, and is updated regularly.

What is Tecfidera?

Tecfidera has active ingredients of dimethyl fumarate. It is often used in multiple sclerosis. eHealthMe is studying from 129,627 Tecfidera users. Check the latest studies of Tecfidera.

What is Hyperthyroidism?

Hyperthyroidism (over activity of the thyroid gland) is found to be associated with 1,003 drugs and 1,434 conditions by eHealthMe. Check the latest studies of Hyperthyroidism.

On May, 28, 2026

129,391 people reported to have side effects when taking Tecfidera.
Among them, 72 people (0.06%) have Hyperthyroidism.

Among these 72 people:

* Approximation only. Some reports may have incomplete information.

Do you take Tecfidera and have Hyperthyroidism?

- Check whether Hyperthyroidism 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 Tecfidera:

Tecfidera (129,627 reports)

Hyperthyroidism treatments and more:

Hyperthyroidism (26,831 reports)

How severe was Hyperthyroidism and when was it recovered:

Hyperthyroidism in Tecfidera

Expand to all the drugs that have ingredients of dimethyl fumarate:

Hyperthyroidism and drugs with ingredients of dimethyl fumarate (21 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 Tecfidera:

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 Hyperthyroidism:

Hyperthyroidism (1,003 drugs)

Browse all the conditions that are associated with Hyperthyroidism:

Hyperthyroidism (1,434 conditions)

Related publications that referenced our studies

Dulani S, Dulani R, Lele S, Diagavane S, Anjankar S, Jaiswal N, Subramaniam PS, Juneja R, "Chronic Subdural Haematoma in a Case of Hyperthyroidism Presenting with Papilledema", Chinese Medicine, 2012 Dec .
Dulani S, Dulani R, Lele S, Diagavane S, Anjankar S, Jaiswal N, Subramaniam PS, Juneja R, "Chronic Subdural Haematoma in a Case of Hyperthyroidism Presenting with Papilledema", Chinese Medicine, 2012 Dec .

How the study uses the data?

The study uses data from the FDA. It is based on dimethyl fumarate (the active ingredients of Tecfidera) and Tecfidera (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.