Prilosec and Electrocardiogram poor r-wave progression - a phase IV clinical study of FDA data

Summary:

Electrocardiogram poor r-wave progression is reported as a side effect among people who take Prilosec (omeprazole), especially for people who are female, 60+ old, also take Synthroid, and have Basedow's disease.

The phase IV clinical study analyzes which people have Electrocardiogram poor r-wave progression when taking Prilosec. It is created by eHealthMe based on reports of 171,578 people who have side effects when taking Prilosec from the FDA, and is updated regularly.

What is Prilosec?

Prilosec has active ingredients of omeprazole. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 175,286 Prilosec users. Check the latest studies of Prilosec.

What is Electrocardiogram poor r-wave progression?

Electrocardiogram poor r-wave progression is found to be associated with 83 drugs and 249 conditions by eHealthMe. Check the latest studies of Electrocardiogram poor r-wave progression.

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, 29, 2026

171,578 people reported to have side effects when taking Prilosec.
Among them, 13 people (0.01%) have Electrocardiogram poor r-wave progression.

Could Prilosec cause Electrocardiogram poor r-wave progression?

Among these 13 people:

What is the gender of people who have Electrocardiogram poor r-wave progression when taking Prilosec? *

female: 66.67 %
male: 33.33 %

What is the age of people who have Electrocardiogram poor r-wave progression when taking Prilosec? *

What are other drugs people take besides Prilosec? *

What are other side effects people have besides Electrocardiogram poor r-wave progression? *

High Blood Pressure: 6 people, 46.15%
High Blood Cholesterol: 6 people, 46.15%
Heart Rate Increased: 5 people, 38.46%
Heart Palpitations (feelings or sensations that your heart is pounding or racing): 5 people, 38.46%
Sinus Bradycardia (an unusually slow heartbeat due to heart disease): 4 people, 30.77%
Electrocardiogram T Wave Abnormal: 4 people, 30.77%
Arrhythmias (irregular heartbeat): 4 people, 30.77%
Heart Attack: 4 people, 30.77%
Idiopathic Pulmonary Fibrosis (chronic lung disease): 3 people, 23.08%
Multiple Sclerosis Relapse (reoccurrence of a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 3 people, 23.08%

What are the existing conditions these people have? *

Asthma: 3 people, 23.08%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 3 people, 23.08%
Relapsing-Remitting Multiple Sclerosis (reoccurrence of an inflammatory disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged): 3 people, 23.08%
Basedow's Disease (autoimmune disease where the thyroid is overactive, producing an excessive amount of thyroid hormones): 3 people, 23.08%
Otitis Media (inflammation of the middle ear): 2 people, 15.38%
Back Pain: 2 people, 15.38%
Joint Pain: 2 people, 15.38%
Insomnia (sleeplessness): 2 people, 15.38%
Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 2 people, 15.38%
Diarrhea: 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Prilosec and have Electrocardiogram poor r-wave progression?

- Check whether Electrocardiogram poor r-wave progression is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Prilosec:

Prilosec (175,286 reports)

Electrocardiogram poor r-wave progression treatments and more:

Electrocardiogram poor r-wave progression (339 reports)

How severe was Electrocardiogram poor r-wave progression and when was it recovered:

Electrocardiogram poor r-wave progression in Prilosec

Expand to all the drugs that have ingredients of omeprazole:

Electrocardiogram poor r-wave progression and drugs with ingredients of omeprazole (27 reports)

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 Prilosec:

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 Electrocardiogram poor r-wave progression:

Electrocardiogram poor r-wave progression (83 drugs)

Browse all the conditions that are associated with Electrocardiogram poor r-wave progression:

Electrocardiogram poor r-wave progression (249 conditions)

How the study uses the data?

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