Zarontin and Myocarditis - a phase IV clinical study of FDA data

Summary:

Myocarditis is reported as a side effect among people who take Zarontin (ethosuximide), especially for people who are female, 30-39 old, also take Fycompa, and have Febrile convulsion.

The phase IV clinical study analyzes which people have Myocarditis when taking Zarontin. It is created by eHealthMe based on reports of 958 people who have side effects when taking Zarontin from the FDA, and is updated regularly.

What is Zarontin?

Zarontin has active ingredients of ethosuximide. It is often used in petit mal seizure. eHealthMe is studying from 987 Zarontin users. Check the latest studies of Zarontin.

What is Myocarditis?

Myocarditis (inflammation of heart muscle myocardium) is found to be associated with 676 drugs and 893 conditions by eHealthMe. Check the latest studies of Myocarditis.



On Jul, 18, 2026

958 people reported to have side effects when taking Zarontin.
Among them, 12 people (1.25%) have Myocarditis.

Could Zarontin cause Myocarditis?

Among these 12 people:

What is the gender of people who have Myocarditis when taking Zarontin? *

  • female: 90.91 %
  • male: 9.09 %

What is the age of people who have Myocarditis when taking Zarontin? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 9.09 %
  • 20-29: 0.0 %
  • 30-39: 90.91 %
  • 40-49: 0.0 %
  • 50-59: 0.0 %
  • 60+: 0.0 %

What are other drugs people take besides Zarontin? *

  1. Sabril: 11 people, 91.67%
  2. Fycompa: 11 people, 91.67%
  3. Tegretol: 10 people, 83.33%
  4. Vimpat: 9 people, 75.00%
  5. Keppra: 9 people, 75.00%
  6. Lamictal: 9 people, 75.00%
  7. Valium: 8 people, 66.67%
  8. Lacosamide: 1 person, 8.33%
  9. Clobazam: 1 person, 8.33%
  10. Diazepam: 1 person, 8.33%

What are other side effects people have besides Myocarditis? *

  1. Mitral Valve Disease (disease of mitral valve of heart): 11 people, 91.67%
  2. Oedema Peripheral (superficial swelling): 10 people, 83.33%
  3. Acute Pulmonary Oedema (sudden deposit of fluid in the lung)): 10 people, 83.33%
  4. Systemic Lupus Erythematosus (an autoimmune disease, which means the body's immune system mistakenly, attacks healthy tissue): 1 person, 8.33%

What are the existing conditions these people have? *

  1. Febrile Convulsion (a convulsion associated with a significant rise in body temperature): 10 people, 83.33%

* Approximation only. Some reports may have incomplete information.

Do you take Zarontin and have Myocarditis?

- Check whether Myocarditis 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 Zarontin:

Myocarditis treatments and more:

How severe was Myocarditis and when was it recovered:

Expand to all the drugs that have ingredients of ethosuximide:

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 Zarontin:

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 Myocarditis:

Browse all the conditions that are associated with Myocarditis:


How the study uses the data?

The study uses data from the FDA. It is based on ethosuximide (the active ingredients of Zarontin) and Zarontin (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.



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