Flecainide acetate and Heart attack - a phase IV clinical study of FDA data

Summary:

Heart attack is reported as a side effect among people who take Flecainide acetate (flecainide acetate), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Aspirin, and have Depression.

The phase IV clinical study analyzes which people have Heart attack when taking Flecainide acetate. It is created by eHealthMe based on reports of 6,177 people who have side effects when taking Flecainide acetate from the FDA, and is updated regularly.

What is Flecainide acetate?

Flecainide acetate has active ingredients of flecainide acetate. It is often used in atrial fibrillation/flutter. eHealthMe is studying from 7,176 Flecainide acetate users. Check the latest studies of Flecainide acetate.

What is Heart attack?

Heart attack is found to be associated with 2,474 drugs and 3,298 conditions by eHealthMe. Check the latest studies of Heart attack.

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, 30, 2026

6,177 people reported to have side effects when taking Flecainide acetate.
Among them, 47 people (0.76%) have Heart attack.

Could Flecainide acetate cause Heart attack?

Among these 47 people:

How long have people been on Flecainide acetate when they have Heart attack? *

What is the gender of people who have Heart attack when taking Flecainide acetate? *

female: 68.89 %
male: 31.11 %

What is the age of people who have Heart attack when taking Flecainide acetate? *

What are other drugs people take besides Flecainide acetate? *

What are other side effects people have besides Heart attack? *

Chest Pain: 8 people, 17.02%
Heart Rate Irregular: 7 people, 14.89%
Depression: 5 people, 10.64%
Weakness: 4 people, 8.51%
Hyperkalemia (damage to or disease of the kidney): 4 people, 8.51%
Cardiac Failure Congestive: 4 people, 8.51%
Hyperhidrosis (abnormally increased sweating): 4 people, 8.51%
Ventricular Fibrillation (abnormally irregular heart rhythm): 4 people, 8.51%
Dyspnea (difficult or laboured breathing): 4 people, 8.51%
Drug Ineffective: 3 people, 6.38%

What are the existing conditions these people have? *

High Blood Cholesterol: 5 people, 10.64%
High Blood Pressure: 5 people, 10.64%
Depression: 5 people, 10.64%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 4 people, 8.51%
Heart Rate Irregular: 4 people, 8.51%
Diabetes: 4 people, 8.51%
Cardiac Disorder: 4 people, 8.51%
Stroke (sudden death of a portion of the brain cells due to a lack of oxygen): 3 people, 6.38%
Sleep Disorder: 3 people, 6.38%
Bone Pain: 2 people, 4.26%

* Approximation only. Some reports may have incomplete information.

Do you take Flecainide acetate and have Heart attack?

- Check whether Heart attack 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 Flecainide acetate:

Flecainide acetate (7,176 reports)

Heart attack treatments and more:

Heart attack (266,145 reports)

Browse all side effects of Flecainide acetate:

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 Heart attack:

Heart attack (2,474 drugs)

Browse all the conditions that are associated with Heart attack:

Heart attack (3,298 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on flecainide acetate (the active ingredients of Flecainide acetate) and Flecainide acetate (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.