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Cyclophosphamide and Bundle branch block left - a phase IV clinical study of FDA data

Summary:

Bundle branch block left is reported as a side effect among people who take Cyclophosphamide (cyclophosphamide), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Spironolactone, and have Non-hodgkin's lymphoma.

The phase IV clinical study analyzes which people have Bundle branch block left when taking Cyclophosphamide. It is created by eHealthMe based on reports of 185,094 people who have side effects when taking Cyclophosphamide from the FDA, and is updated regularly.

What is Cyclophosphamide?

Cyclophosphamide has active ingredients of cyclophosphamide. It is often used in multiple myeloma. eHealthMe is studying from 185,240 Cyclophosphamide users. Check the latest studies of Cyclophosphamide.

What is Bundle branch block left?

Bundle branch block left (absence of transmission of electric impulses from the atrioventricular (av) bundle of his to the left ventricle) is found to be associated with 723 drugs and 794 conditions by eHealthMe. Check the latest studies of Bundle branch block left.

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

185,094 people reported to have side effects when taking Cyclophosphamide.
Among them, 74 people (0.04%) have Bundle branch block left.

Could Cyclophosphamide cause Bundle branch block left?

Among these 74 people:

How long have people been on Cyclophosphamide when they have Bundle branch block left? *

  • < 1 month: 25.0 %
  • 1 - 6 months: 33.33 %
  • 6 - 12 months: 20.83 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 20.83 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

What is the gender of people who have Bundle branch block left when taking Cyclophosphamide? *

  • female: 66.67 %
  • male: 33.33 %

What is the age of people who have Bundle branch block left when taking Cyclophosphamide? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 1.72 %
  • 30-39: 0.0 %
  • 40-49: 1.72 %
  • 50-59: 18.97 %
  • 60+: 77.59 %

What are other drugs people take besides Cyclophosphamide? *

  1. Lasix: 8 people, 10.81%
  2. Furosemide: 8 people, 10.81%
  3. Prednisone: 8 people, 10.81%
  4. Spironolactone: 8 people, 10.81%
  5. Zometa: 7 people, 9.46%
  6. Prednisolone: 7 people, 9.46%
  7. Paxil: 7 people, 9.46%
  8. Rituxan: 7 people, 9.46%
  9. Ambien: 7 people, 9.46%
  10. Coumadin: 6 people, 8.11%

What are other side effects people have besides Bundle branch block left? *

  1. Dyspnea (difficult or laboured breathing): 26 people, 35.14%
  2. Cardiac Failure Congestive: 23 people, 31.08%
  3. Cardiomyopathy (weakening of the heart muscle): 20 people, 27.03%
  4. Cardiotoxicity (damage to the heart muscle): 17 people, 22.97%
  5. Aortic Stenosis (obstruction to the outflow of blood from the left ventricle into the aorta): 16 people, 21.62%
  6. Mitral Valve Incompetence (inefficient heart valve): 14 people, 18.92%
  7. Left Ventricular Dysfunction: 14 people, 18.92%
  8. Pneumonia: 13 people, 17.57%
  9. Hypotension (abnormally low blood pressure): 11 people, 14.86%
  10. Cardiac Failure: 11 people, 14.86%

What are the existing conditions these people have? *

  1. Non-Hodgkin's Lymphoma (malignant (cancer) cells form in the lymph system): 23 people, 31.08%
  2. Breast Cancer: 11 people, 14.86%
  3. Chronic Myeloid Leukaemia (long lasting type of cancer that starts in the blood-forming cells of the bone marrow and invades the blood): 10 people, 13.51%
  4. Pain: 5 people, 6.76%
  5. Non-Hodgkin's Lymphoma Stage Iii (malignant (cancer) cells form in the lymph system- stage iii): 5 people, 6.76%
  6. Prothrombin Level Abnormal: 5 people, 6.76%
  7. Depression: 5 people, 6.76%
  8. Breast Cancer Metastatic: 4 people, 5.41%
  9. Breast Cancer Recurrent: 4 people, 5.41%
  10. High Blood Pressure: 3 people, 4.05%

* Approximation only. Some reports may have incomplete information.

Do you take Cyclophosphamide and have Bundle branch block left?

- Check whether Bundle branch block left 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 Cyclophosphamide:

Bundle branch block left treatments and more:

How severe was Bundle branch block left and when was it recovered:

Expand to all the drugs that have ingredients of cyclophosphamide:

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 Cyclophosphamide:

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 Bundle branch block left:

Browse all the conditions that are associated with Bundle branch block left:

Related publications that referenced our studies

How the study uses the data?

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