Zovirax and The flu - a phase IV clinical study of FDA data

Summary:

The flu is reported as a side effect among people who take Zovirax (acyclovir sodium), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Famotidine, and have Multiple myeloma.

The phase IV clinical study analyzes which people have The flu when taking Zovirax. It is created by eHealthMe based on reports of 8,906 people who have side effects when taking Zovirax from the FDA, and is updated regularly.

What is Zovirax?

Zovirax has active ingredients of acyclovir sodium. It is often used in genital herpes. eHealthMe is studying from 9,031 Zovirax users. Check the latest studies of Zovirax.

What is The flu?

The flu (the flu is caused by an influenza virus) is found to be associated with 2,177 drugs and 2,717 conditions by eHealthMe. Check the latest studies of The flu.

On Jul, 16, 2026

8,906 people reported to have side effects when taking Zovirax.
Among them, 31 people (0.35%) have The flu.

Among these 31 people:

How long have people been on Zovirax when they have The flu? *

What is the gender of people who have The flu when taking Zovirax? *

female: 60 %
male: 40 %

What is the age of people who have The flu when taking Zovirax? *

What are other drugs people take besides Zovirax? *

What are other side effects people have besides The flu? *

Bronchitis (inflammation of the mucous membrane in the bronchial tubes): 12 people, 38.71%
Thrombocytopenia (decrease of platelets in blood): 10 people, 32.26%
Pain: 8 people, 25.81%
Dizziness: 8 people, 25.81%
Fall: 8 people, 25.81%
Swallowing Difficulty: 8 people, 25.81%
Pneumonia: 8 people, 25.81%
Headache (pain in head): 8 people, 25.81%
Gamma-Glutamyltransferase Increased: 7 people, 22.58%
Nasal Discharge (discharge from nose): 7 people, 22.58%

What are the existing conditions these people have? *

Multiple Myeloma (cancer of the plasma cells): 11 people, 35.48%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 7 people, 22.58%
Acute Lymphocytic Leukemia (All) (cancer of the white blood cells characterized by excess lymphoblasts): 5 people, 16.13%
Hypogammaglobulinaemia (an abnormally low concentration of gamma globulin in the blood and increased risk of infection): 4 people, 12.90%
Stress And Anxiety: 3 people, 9.68%
Pain: 3 people, 9.68%
Hypomagnesaemia (electrolyte disturbance in which there is an abnormally low level of magnesium in the blood): 2 people, 6.45%
Oedema (fluid collection in tissue): 2 people, 6.45%
Chronic Lymphocytic Leukaemia (cancer in which the bone marrow makes too many lymphocytes (a type of white blood cell)): 2 people, 6.45%
Nausea (feeling of having an urge to vomit): 2 people, 6.45%

* Approximation only. Some reports may have incomplete information.

Do you take Zovirax and have The flu?

- Check whether The flu 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 Zovirax:

Zovirax (9,031 reports)

The flu treatments and more:

The flu (145,738 reports)

Browse all side effects of Zovirax:

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 The flu:

The flu (2,177 drugs)

Browse all the conditions that are associated with The flu:

The flu (2,717 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on acyclovir sodium (the active ingredients of Zovirax) and Zovirax (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.