Valsartan and Encephalitis - a phase IV clinical study of FDA data

Summary:

Encephalitis is reported as a side effect among people who take Valsartan (valsartan), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Metformin, and have Relapsing-remitting multiple sclerosis.

The phase IV clinical study analyzes which people have Encephalitis when taking Valsartan. It is created by eHealthMe based on reports of 62,763 people who have side effects when taking Valsartan from the FDA, and is updated regularly.

What is Valsartan?

Valsartan has active ingredients of valsartan. It is often used in high blood pressure. eHealthMe is studying from 63,805 Valsartan users. Check the latest studies of Valsartan.

What is Encephalitis?

Encephalitis (inflammation of the brain) is found to be associated with 655 drugs and 847 conditions by eHealthMe. Check the latest studies of Encephalitis.

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 Sep, 01, 2026

62,763 people reported to have side effects when taking Valsartan.
Among them, 43 people (0.07%) have Encephalitis.

Could Valsartan cause Encephalitis?

Among these 43 people:

How long have people been on Valsartan when they have Encephalitis? *

  • < 1 month: 100 %
  • 1 - 6 months: 0.0 %
  • 6 - 12 months: 0.0 %
  • 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 Encephalitis when taking Valsartan? *

  • female: 88.37 %
  • male: 11.63 %

What is the age of people who have Encephalitis when taking Valsartan? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 17.95 %
  • 50-59: 25.64 %
  • 60+: 56.41 %

What are other drugs people take besides Valsartan? *

  1. Metformin: 12 people, 27.91%
  2. Yasmin: 11 people, 25.58%
  3. Cetirizine Hydrochloride: 8 people, 18.60%
  4. Allopurinol: 7 people, 16.28%
  5. Ocrevus: 7 people, 16.28%
  6. Aubagio: 6 people, 13.95%
  7. Levothyroxine Sodium: 5 people, 11.63%
  8. Ventolin: 5 people, 11.63%
  9. Pantoprazole: 5 people, 11.63%
  10. Opdivo: 4 people, 9.30%

What are other side effects people have besides Encephalitis? *

  1. Fatigue (feeling of tiredness): 11 people, 25.58%
  2. Cough: 8 people, 18.60%
  3. Fever: 8 people, 18.60%
  4. Headache (pain in head): 7 people, 16.28%
  5. Stress And Anxiety: 7 people, 16.28%
  6. Epilepsy (common and diverse set of chronic neurological disorders characterized by seizures): 6 people, 13.95%
  7. Seizures (abnormal excessive or synchronous neuronal activity in the brain): 6 people, 13.95%
  8. Meningitis (inflammation of the protective membranes covering the brain and spinal cord, known collectively as the meninges): 6 people, 13.95%
  9. Mental Disorder (a psychological term for a mental or behavioural pattern or anomaly that causes distress or disability): 6 people, 13.95%
  10. Oropharyngeal Pain: 6 people, 13.95%

What are the existing conditions these people have? *

  1. 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): 7 people, 16.28%
  2. Anaemia (lack of blood): 6 people, 13.95%
  3. Birth Control: 6 people, 13.95%
  4. Colorectal Cancer Metastatic (cancer of colon and rectal spreads to other parts): 6 people, 13.95%
  5. Hyperlipidaemia (presence of excess lipids in the blood): 4 people, 9.30%
  6. Coronary Heart Disease (narrowing or blockage of the coronary arteries): 4 people, 9.30%
  7. Renal Cell Carcinoma (a kidney cancer): 4 people, 9.30%
  8. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 4 people, 9.30%
  9. Burkitt Lymphoma (cancer of the lymphatic system): 3 people, 6.98%
  10. Aplastic Anemia: 3 people, 6.98%

* Approximation only. Some reports may have incomplete information.

Do you take Valsartan and have Encephalitis?

- Check whether Encephalitis 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 Valsartan:

Encephalitis treatments and more:

How severe was Encephalitis and when was it recovered:

Expand to all the drugs that have ingredients of valsartan:

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 Valsartan:

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 Encephalitis:

Browse all the conditions that are associated with Encephalitis:


How the study uses the data?

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



Recent studies on eHealthMe: