Losartan 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 Losartan (losartan potassium), especially for people who are female, 60+ old, also take Metformin, and have Diabetes.

The phase IV clinical study analyzes which people have Bundle branch block left when taking Losartan. It is created by eHealthMe based on reports of 170,768 people who have side effects when taking Losartan from the FDA, and is updated regularly.

What is Losartan?

Losartan has active ingredients of losartan potassium. It is often used in high blood pressure. eHealthMe is studying from 177,686 Losartan users. Check the latest studies of Losartan.

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 726 drugs and 794 conditions by eHealthMe. Check the latest studies of Bundle branch block left.

On Jul, 29, 2026

170,768 people reported to have side effects when taking Losartan.
Among them, 97 people (0.06%) have Bundle branch block left.

Could Losartan cause Bundle branch block left?

Among these 97 people:

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

female: 61.11 %
male: 38.89 %

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

What are other drugs people take besides Losartan? *

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

Atrioventricular Block Complete (heart block complete): 14 people, 14.43%
Dyspnea (difficult or laboured breathing): 13 people, 13.40%
Hyperkalemia (damage to or disease of the kidney): 13 people, 13.40%
Cardio-Respiratory Arrest (sudden dysfunction of heart and lungs): 12 people, 12.37%
Haemodynamic Instability (disturbances in the blood movement in our body): 11 people, 11.34%
Hypotension (abnormally low blood pressure): 11 people, 11.34%
Bradycardia (abnormally slow heart action): 11 people, 11.34%
Chest Pain: 11 people, 11.34%
Dizziness: 11 people, 11.34%
Electrocardiogram Qt Prolonged: 11 people, 11.34%

What are the existing conditions these people have? *

Diabetes: 12 people, 12.37%
Nausea (feeling of having an urge to vomit): 11 people, 11.34%
Blood Potassium Decreased: 10 people, 10.31%
Nausea And Vomiting: 10 people, 10.31%
Pain: 8 people, 8.25%
Type 1 Diabetes: 8 people, 8.25%
Indigestion: 6 people, 6.19%
Psoriasis (immune-mediated disease that affects the skin): 6 people, 6.19%
Migraine (headache): 5 people, 5.15%
Cardiac Disorder: 5 people, 5.15%

* Approximation only. Some reports may have incomplete information.

Do you take Losartan 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 Losartan:

Losartan (177,686 reports)

Browse all side effects of Losartan:

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:

Bundle branch block left (726 drugs)

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

Bundle branch block left (794 conditions)

Related publications that referenced our studies

Li W, Lamichhane J, "From Heartbreak to Left Bundle Branch Block: A Case of Amitriptyline Overdose", American Journal of Therapeutics, 2017 Sep .
Lai SW, Lin HF, Lin CL, Liao KF, "No association between losartan use and acute pancreatitis in hypertensive patients", Eur J Hosp Pharm, 2017 Mar .
Li W, Lamichhane J, "From Heartbreak to Left Bundle Branch Block: A Case of Amitriptyline Overdose", American Journal of Therapeutics, 2017 Sep .
Lai SW, Lin HF, Lin CL, Liao KF, "No association between losartan use and acute pancreatitis in hypertensive patients", Eur J Hosp Pharm, 2017 Mar .

How the study uses the data?

The study uses data from the FDA. It is based on losartan potassium (the active ingredients of Losartan) and Losartan (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.