Ketotifen fumarate and Atrial fibrillation/flutter - a phase IV clinical study of FDA data

Summary:

Atrial fibrillation/flutter is reported as a side effect among people who take Ketotifen fumarate (ketotifen fumarate), especially for people who are female, 60+ old, also take Synthroid, and have Immunodeficiency common variable.

The phase IV clinical study analyzes which people have Atrial fibrillation/flutter when taking Ketotifen fumarate. It is created by eHealthMe based on reports of 1,398 people who have side effects when taking Ketotifen fumarate from the FDA, and is updated regularly.

What is Ketotifen fumarate?

Ketotifen fumarate has active ingredients of ketotifen fumarate. It is often used in allergies. eHealthMe is studying from 1,436 Ketotifen fumarate users. Check the latest studies of Ketotifen fumarate.

What is Atrial fibrillation/flutter?

Atrial fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles) is found to be associated with 2,366 drugs and 3,840 conditions by eHealthMe. Check the latest studies of Atrial fibrillation/flutter.

On Jul, 07, 2026

1,398 people reported to have side effects when taking Ketotifen fumarate.
Among them, 13 people (0.93%) have Atrial fibrillation/flutter.

Could Ketotifen fumarate cause Atrial fibrillation/flutter?

Among these 13 people:

What is the gender of people who have Atrial fibrillation/flutter when taking Ketotifen fumarate? *

female: 84.62 %
male: 15.38 %

What is the age of people who have Atrial fibrillation/flutter when taking Ketotifen fumarate? *

What are other drugs people take besides Ketotifen fumarate? *

Premarin: 8 people, 61.54%
Triamcinolone: 8 people, 61.54%
Synthroid: 8 people, 61.54%
Ventolin: 7 people, 53.85%
Valsartan: 6 people, 46.15%
Lidocaine: 5 people, 38.46%
Atenolol: 5 people, 38.46%
Betamethasone Valerate: 5 people, 38.46%
Doxycycline Hyclate: 5 people, 38.46%
Epinephrine: 5 people, 38.46%

What are other side effects people have besides Atrial fibrillation/flutter? *

Headache (pain in head): 9 people, 69.23%
Infusion Site Swelling: 8 people, 61.54%
Bronchitis (inflammation of the mucous membrane in the bronchial tubes): 8 people, 61.54%
Fatigue (feeling of tiredness): 8 people, 61.54%
Infusion Site Erythema (reddening of the skin at infusion site): 8 people, 61.54%
Sinusitis (inflammation of sinus): 7 people, 53.85%
Infusion Site Urticaria (rash of round, red welts on the skin at infusion site): 5 people, 38.46%
Limb Injury: 5 people, 38.46%
Wound Infection: 5 people, 38.46%
Multiple Allergies (allergy to multiple agents): 4 people, 30.77%

What are the existing conditions these people have? *

Immunodeficiency Common Variable: 7 people, 53.85%
Hypogammaglobulinaemia (an abnormally low concentration of gamma globulin in the blood and increased risk of infection): 4 people, 30.77%
Primary Immunodeficiency Syndrome: 3 people, 23.08%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 2 people, 15.38%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 2 people, 15.38%
Waldenstrom's Macroglobulinaemia (cancer affects small lymphocytes (white blood cells)): 1 person, 7.69%
Schizoaffective Disorder (a mental disorder characterized by disordered thought): 1 person, 7.69%
High Blood Pressure: 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Ketotifen fumarate and have Atrial fibrillation/flutter?

- Check whether Atrial fibrillation/flutter 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 Ketotifen fumarate:

Ketotifen fumarate (1,436 reports)

Browse all side effects of Ketotifen fumarate:

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 Atrial fibrillation/flutter:

Atrial fibrillation/flutter (2,366 drugs)

Browse all the conditions that are associated with Atrial fibrillation/flutter:

Atrial fibrillation/flutter (3,840 conditions)

How the study uses the data?

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