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Rythmol and Ventricular tachycardia - a phase IV clinical study of FDA data

Summary:

Ventricular tachycardia is reported as a side effect among people who take Rythmol (propafenone hydrochloride), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Lasix, and have Diabetes.

The phase IV clinical study analyzes which people have Ventricular tachycardia when taking Rythmol. It is created by eHealthMe based on reports of 3,422 people who have side effects when taking Rythmol from the FDA, and is updated regularly.

What is Rythmol?

Rythmol has active ingredients of propafenone hydrochloride. It is often used in atrial fibrillation/flutter. eHealthMe is studying from 3,638 Rythmol users. Check the latest studies of Rythmol.

What is Ventricular tachycardia?

Ventricular tachycardia (rapid heartbeat that originates in one of the lower chambers (the ventricles) of the heart) is found to be associated with 1,289 drugs and 2,097 conditions by eHealthMe. Check the latest studies of Ventricular tachycardia.

On Jul, 17, 2026

3,422 people reported to have side effects when taking Rythmol.
Among them, 38 people (1.11%) have Ventricular tachycardia.

Could Rythmol cause Ventricular tachycardia?

Among these 38 people:

How long have people been on Rythmol when they have Ventricular tachycardia? *

  • < 1 month: 77.78 %
  • 1 - 6 months: 11.11 %
  • 6 - 12 months: 11.11 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

What is the gender of people who have Ventricular tachycardia when taking Rythmol? *

  • female: 45.95 %
  • male: 54.05 %

What is the age of people who have Ventricular tachycardia when taking Rythmol? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 5.88 %
  • 20-29: 2.94 %
  • 30-39: 0.0 %
  • 40-49: 8.82 %
  • 50-59: 20.59 %
  • 60+: 61.76 %

What are other drugs people take besides Rythmol? *

  1. Lasix: 12 people, 31.58%
  2. Coumadin: 11 people, 28.95%
  3. Synthroid: 7 people, 18.42%
  4. Lanoxin: 7 people, 18.42%
  5. Flovent: 6 people, 15.79%
  6. Atrovent: 6 people, 15.79%
  7. Lorazepam: 6 people, 15.79%
  8. Zyloprim: 5 people, 13.16%
  9. Centrum: 5 people, 13.16%
  10. Rezulin: 5 people, 13.16%

What are other side effects people have besides Ventricular tachycardia? *

  1. Weakness: 10 people, 26.32%
  2. Ventricular Extrasystoles (premature cardiac contraction): 8 people, 21.05%
  3. Chest Pain: 8 people, 21.05%
  4. Cardiac Arrest: 7 people, 18.42%
  5. Heart Palpitations (feelings or sensations that your heart is pounding or racing): 7 people, 18.42%
  6. Hypotension (abnormally low blood pressure): 7 people, 18.42%
  7. Weight Increased: 6 people, 15.79%
  8. Hepatocellular Damage (liver damage): 5 people, 13.16%
  9. Hypokalemia (low potassium): 5 people, 13.16%
  10. Constipation: 5 people, 13.16%

What are the existing conditions these people have? *

  1. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 3 people, 7.89%
  2. Metastatic Malignant Melanoma (spreadable cancer tumour of melanine): 3 people, 7.89%
  3. Diabetes: 3 people, 7.89%
  4. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 2 people, 5.26%
  5. Heart Rate Irregular: 2 people, 5.26%
  6. Dementia Alzheimer's Type (loss of mental ability with alzheimer's symptom): 2 people, 5.26%
  7. Ventricular Tachyarrhythmia (rapid heartbeat that originates in one of the lower chambers (the ventricles) of the heart): 1 person, 2.63%
  8. Urinary Tract Infection: 1 person, 2.63%
  9. Suicidal Ideation: 1 person, 2.63%
  10. Respiratory Tract Infection: 1 person, 2.63%

* Approximation only. Some reports may have incomplete information.

Do you take Rythmol and have Ventricular tachycardia?

- Check whether Ventricular tachycardia 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 Rythmol:

Ventricular tachycardia treatments and more:

How severe was Ventricular tachycardia and when was it recovered:

Expand to all the drugs that have ingredients of propafenone hydrochloride:

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 Rythmol:

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 Ventricular tachycardia:

Browse all the conditions that are associated with Ventricular tachycardia:

Related publications that referenced our studies

How the study uses the data?

The study uses data from the FDA. It is based on propafenone hydrochloride (the active ingredients of Rythmol) and Rythmol (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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