Cozaar and Hyperchlorhydria - a phase IV clinical study of FDA data

Summary:

Hyperchlorhydria is reported as a side effect among people who take Cozaar (losartan potassium), especially for people who are male, 60+ old, also take Byetta, and have Polycythaemia vera.

The phase IV clinical study analyzes which people have Hyperchlorhydria when taking Cozaar. It is created by eHealthMe based on reports of 43,582 people who have side effects when taking Cozaar from the FDA, and is updated regularly.

What is Cozaar?

Cozaar has active ingredients of losartan potassium. It is often used in high blood pressure. eHealthMe is studying from 45,124 Cozaar users. Check the latest studies of Cozaar.

What is Hyperchlorhydria?

Hyperchlorhydria (gastric acid levels are higher in stomach) is found to be associated with 389 drugs and 476 conditions by eHealthMe. Check the latest studies of Hyperchlorhydria.

On Aug, 01, 2026

43,582 people reported to have side effects when taking Cozaar.
Among them, 17 people (0.04%) have Hyperchlorhydria.

Among these 17 people:

What is the gender of people who have Hyperchlorhydria when taking Cozaar? *

female: 46.67 %
male: 53.33 %

What is the age of people who have Hyperchlorhydria when taking Cozaar? *

What are other drugs people take besides Cozaar? *

What are other side effects people have besides Hyperchlorhydria? *

Nausea (feeling of having an urge to vomit): 10 people, 58.82%
Headache (pain in head): 8 people, 47.06%
Dizziness: 5 people, 29.41%
Indigestion: 5 people, 29.41%
Malaise (a feeling of general discomfort or uneasiness): 5 people, 29.41%
Oral Mucosal Blistering (mouth ulcer): 4 people, 23.53%
Muscle Spasms (muscle contraction): 4 people, 23.53%
Bleeding Into The Skin: 4 people, 23.53%
Pain: 4 people, 23.53%
Blood Glucose Increased: 4 people, 23.53%

What are the existing conditions these people have? *

Type 2 Diabetes: 3 people, 17.65%
Primary Myelofibrosis (primary disorder of the bone marrow): 3 people, 17.65%
Polycythaemia Vera (blood disorder in which the bone marrow makes too many red blood cells): 3 people, 17.65%
Renal Cancer Stage Iv (the tumour has spread to areas beyond gerota's fascia and extends into the adrenal gland on the same side of the body as the tumour, possibly to lymph nodes, but not to other parts of the body): 1 person, 5.88%
Glucose Tolerance Impaired (blood glucose is raised beyond normal levels, but not high enough to warrant a diabetes diagnosis): 1 person, 5.88%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 5.88%
Diabetes: 1 person, 5.88%

* Approximation only. Some reports may have incomplete information.

Do you take Cozaar and have Hyperchlorhydria?

- Check whether Hyperchlorhydria 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 Cozaar:

Cozaar (45,124 reports)

Hyperchlorhydria treatments and more:

Hyperchlorhydria (52,226 reports)

Browse all side effects of Cozaar:

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 Hyperchlorhydria:

Hyperchlorhydria (389 drugs)

Browse all the conditions that are associated with Hyperchlorhydria:

Hyperchlorhydria (476 conditions)

Related publications that referenced our studies

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 .
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 Cozaar) and Cozaar (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.