Valproic acid and Herpes zoster - a phase IV clinical study of FDA data

Summary:

Herpes zoster is reported as a side effect among people who take Valproic acid (valproic acid), especially for people who are male, 40-49 old, have been taking the drug for 1 - 6 months also take Clozaril, and have Schizophrenia.

The phase IV clinical study analyzes which people have Herpes zoster when taking Valproic acid. It is created by eHealthMe based on reports of 35,830 people who have side effects when taking Valproic acid from the FDA, and is updated regularly.

What is Valproic acid?

Valproic acid has active ingredients of valproic acid. It is often used in epilepsy. eHealthMe is studying from 36,193 Valproic acid users. Check the latest studies of Valproic acid.

What is Herpes zoster?

Herpes zoster is found to be associated with 1,820 drugs and 2,172 conditions by eHealthMe. Check the latest studies of Herpes zoster.

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, 20, 2026

35,830 people reported to have side effects when taking Valproic acid.
Among them, 25 people (0.07%) have Herpes zoster.

Could Valproic acid cause Herpes zoster?

Among these 25 people:

How long have people been on Valproic acid when they have Herpes zoster? *

What is the gender of people who have Herpes zoster when taking Valproic acid? *

female: 44 %
male: 56 %

What is the age of people who have Herpes zoster when taking Valproic acid? *

What are other drugs people take besides Valproic acid? *

What are other side effects people have besides Herpes zoster? *

Weakness: 9 people, 36.00%
Swallowing Difficulty: 8 people, 32.00%
Balance Disorder: 8 people, 32.00%
Oesophageal Carcinoma (cancer tumour of oesophagus): 8 people, 32.00%
Haemoglobin Decreased: 8 people, 32.00%
Weight Decreased: 8 people, 32.00%
Renal Impairment (severely reduced kidney function): 8 people, 32.00%
Tinnitus (a ringing in the ears): 8 people, 32.00%
Oesophageal Stenosis (narrowing of oesophagus): 8 people, 32.00%
Sinus Tachycardia (a heart rhythm with elevated rate of impulses originating from the sinoatrial node): 8 people, 32.00%

What are the existing conditions these people have? *

Asthma: 8 people, 32.00%
Oesophageal Carcinoma (cancer tumour of oesophagus): 8 people, 32.00%
Schizophrenia (a mental disorder characterized by a breakdown of thought processes): 8 people, 32.00%
High Blood Pressure: 3 people, 12.00%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 2 people, 8.00%
Reflux Gastritis (a condition in which the lining of a person's stomach becomes inflamed as a result of exposure to bile): 2 people, 8.00%
Metastatic Malignant Melanoma (spreadable cancer tumour of melanine): 2 people, 8.00%
Malignant Melanoma (skin cancer rises from melancytes): 2 people, 8.00%
High Blood Cholesterol: 2 people, 8.00%
Cardiac Disorder: 2 people, 8.00%

* Approximation only. Some reports may have incomplete information.

Do you take Valproic acid and have Herpes zoster?

- Check whether Herpes zoster 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 Valproic acid:

Valproic acid (36,193 reports)

Herpes zoster treatments and more:

Herpes zoster (88,627 reports)

Browse all side effects of Valproic acid:

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 Herpes zoster:

Herpes zoster (1,820 drugs)

Browse all the conditions that are associated with Herpes zoster:

Herpes zoster (2,172 conditions)

Related publications that referenced our studies

Gupta E, Kunjal R, Cury JD, "Severe hyponatremia due to valproic acid toxicity", Journal of clinical medicine research, 2015 Jan .
Hwabejire JO, Lu J, Liu B, Li Y, Halaweish I, Alam HB, "Valproic acid for the treatment of hemorrhagic shock: a dose-optimization study", journal of surgical research, 2014 Jan .
Gupta E, Kunjal R, Cury JD, "Severe hyponatremia due to valproic acid toxicity", Journal of clinical medicine research, 2015 Jan .
Hwabejire JO, Lu J, Liu B, Li Y, Halaweish I, Alam HB, "Valproic acid for the treatment of hemorrhagic shock: a dose-optimization study", journal of surgical research, 2014 Jan .

How the study uses the data?

The study uses data from the FDA. It is based on valproic acid (the active ingredients of Valproic acid) and Valproic acid (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.