Valacyclovir and Enteritis - a phase IV clinical study of FDA data

Summary:

Enteritis is reported as a side effect among people who take Valacyclovir (valacyclovir hydrochloride), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Pantoprazole, and have Burkitt's lymphoma.

The phase IV clinical study analyzes which people have Enteritis when taking Valacyclovir. It is created by eHealthMe based on reports of 41,259 people who have side effects when taking Valacyclovir from the FDA, and is updated regularly.

What is Valacyclovir?

Valacyclovir has active ingredients of valacyclovir hydrochloride. It is often used in genital herpes. eHealthMe is studying from 42,106 Valacyclovir users. Check the latest studies of Valacyclovir.

What is Enteritis?

Enteritis (inflammation of the small intestine) is found to be associated with 704 drugs and 673 conditions by eHealthMe. Check the latest studies of Enteritis.

On Dec, 30, 2025

41,259 people reported to have side effects when taking Valacyclovir.
Among them, 59 people (0.14%) have Enteritis.

Among these 59 people:

* Approximation only. Some reports may have incomplete information.

Do you take Valacyclovir and have Enteritis?

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Related studies:

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

Valacyclovir (42,106 reports)

Enteritis treatments and more:

Enteritis (7,968 reports)

How severe was Enteritis and when was it recovered:

Enteritis in Valacyclovir

Expand to all the drugs that have ingredients of valacyclovir hydrochloride:

Enteritis and drugs with ingredients of valacyclovir hydrochloride (40 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+

Common Valacyclovir side effects:

Browse all side effects of Valacyclovir:

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

Common drugs associated with Enteritis:

Browse all the drugs that are associated with Enteritis:

Enteritis (704 drugs)

Common conditions associated with Enteritis:

Crohn's disease: 1,046 reports
Hypertension aggravated: 508 reports
Htn: 506 reports
Pain: 253 reports
Rheumatoid arthritis aggravated: 240 reports
Acute lymphocytic leukaemia: 218 reports
Colon cancer: 175 reports
Non-small cell lung cancer: 129 reports
Multiple myeloma: 124 reports
Malignant melanoma: 120 reports

Browse all the conditions that are associated with Enteritis:

Enteritis (673 conditions)

Drugs similar to Valacyclovir and Enteritis :

Acyclovir side effect: Enteritis

How the study uses the data?

The study uses data from the FDA. It is based on valacyclovir hydrochloride (the active ingredients of Valacyclovir) and Valacyclovir (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.