Valacyclovir and Abscess limb - a phase IV clinical study of FDA data

Summary:

Abscess limb is reported as a side effect among people who take Valacyclovir (valacyclovir hydrochloride), especially for people who are female, 50-59 old, also take Folic Acid, and have Rheumatoid arthritis.

The phase IV clinical study analyzes which people have Abscess limb 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 42,107 Valacyclovir users. Check the latest studies of Valacyclovir.

What is Abscess limb?

Abscess limb (limb infection) is found to be associated with 584 drugs and 627 conditions by eHealthMe. Check the latest studies of Abscess limb.

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, 28, 2026

41,259 people reported to have side effects when taking Valacyclovir.
Among them, 16 people (0.04%) have Abscess limb.

Among these 16 people:

What is the gender of people who have Abscess limb when taking Valacyclovir? *

female: 75 %
male: 25 %

What is the age of people who have Abscess limb when taking Valacyclovir? *

What are other drugs people take besides Valacyclovir? *

What are other side effects people have besides Abscess limb? *

Sepsis (a severe blood infection that can lead to organ failure and death): 7 people, 43.75%
Cellulitis (infection under the skin): 5 people, 31.25%
Staphylococcal Infection (an infection with staphylococcus bacteria): 5 people, 31.25%
Pain: 4 people, 25.00%
Pleural Effusion (water on the lungs): 4 people, 25.00%
Meningitis Tuberculous (a bacterial infection of the membranes covering the brain and spinal cord (meninges)): 4 people, 25.00%
Leukopenia (less number of white blood cells in blood): 4 people, 25.00%
Hyponatremia (abnormally low level of sodium in the blood; associated with dehydration): 4 people, 25.00%
Hepatic Failure (liver failure): 4 people, 25.00%
Scar: 4 people, 25.00%

What are the existing conditions these people have? *

Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 6 people, 37.50%
Weight Decreased: 5 people, 31.25%
Type 2 Diabetes: 5 people, 31.25%
Hypotension (abnormally low blood pressure): 5 people, 31.25%
Ovarian Cancer (cancer of ovary): 3 people, 18.75%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 6.25%
Cardiac Failure Congestive: 1 person, 6.25%
Constipation: 1 person, 6.25%
Depression: 1 person, 6.25%
Dermatomyositis (inflammation of the skin and underlying muscle tissue, typically occurring as an autoimmune condition or associated with internal cancer): 1 person, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Valacyclovir and have Abscess limb?

- Check whether Abscess limb 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 Valacyclovir:

Valacyclovir (42,107 reports)

Abscess limb treatments and more:

Abscess limb (5,695 reports)

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

Browse all the drugs that are associated with Abscess limb:

Abscess limb (584 drugs)

Browse all the conditions that are associated with Abscess limb:

Abscess limb (627 conditions)

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.