Fludara and Chickenpox - a phase IV clinical study of FDA data

Summary:

Chickenpox is reported as a side effect among people who take Fludara (fludarabine phosphate), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Cyclophosphamide, and have Chronic lymphocytic leukaemia.

The phase IV clinical study analyzes which people have Chickenpox when taking Fludara. It is created by eHealthMe based on reports of 46,669 people who have side effects when taking Fludara from the FDA, and is updated regularly.

What is Fludara?

Fludara has active ingredients of fludarabine phosphate. eHealthMe is studying from 46,686 Fludara users. Check the latest studies of Fludara.

What is Chickenpox?

Chickenpox (infection with varicella zoster virus) is found to be associated with 333 drugs and 591 conditions by eHealthMe. Check the latest studies of Chickenpox.

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 Jul, 26, 2026

46,669 people reported to have side effects when taking Fludara.
Among them, 48 people (0.1%) have Chickenpox.

Among these 48 people:

How long have people been on Fludara when they have Chickenpox? *

What is the gender of people who have Chickenpox when taking Fludara? *

female: 16.22 %
male: 83.78 %

What is the age of people who have Chickenpox when taking Fludara? *

What are other drugs people take besides Fludara? *

What are other side effects people have besides Chickenpox? *

Sepsis (a severe blood infection that can lead to organ failure and death): 15 people, 31.25%
Pneumonia: 14 people, 29.17%
Pleural Effusion (water on the lungs): 12 people, 25.00%
Fever: 11 people, 22.92%
Leukaemic Infiltration (change in leukaemia in which leukemic cells permeate various organs at any stage of the disease): 11 people, 22.92%
White Blood Cell Count Increased: 10 people, 20.83%
Pneumothorax (the presence of air or gas in the cavity between the lungs and the chest wall, causing collapse of the lung): 10 people, 20.83%
Nasopharyngitis (inflammation of the nasopharynx): 10 people, 20.83%
Herpes Zoster: 10 people, 20.83%
Rib Fracture: 10 people, 20.83%

What are the existing conditions these people have? *

Chronic Lymphocytic Leukaemia (cancer in which the bone marrow makes too many lymphocytes (a type of white blood cell)): 24 people, 50.00%
Bone Marrow Conditioning Regimen: 5 people, 10.42%
Splenic Marginal Zone Lymphoma Stage Iv (cancer of the lymph nodes spleen stage iv): 4 people, 8.33%
Sinusitis (inflammation of sinus): 4 people, 8.33%
Hepatitis B: 4 people, 8.33%
Non-Hodgkin's Lymphoma (malignant (cancer) cells form in the lymph system): 3 people, 6.25%
Burkitt Lymphoma (cancer of the lymphatic system): 3 people, 6.25%
Lymphoma (cancer that begins in immune system cells): 2 people, 4.17%
Idiopathic Thrombocytopenic Purpura (bleeding disorder in which the immune system destroys platelets, which are necessary for normal blood clotting): 1 person, 2.08%
Haematopoietic Stem Cell Mobilisation: 1 person, 2.08%

* Approximation only. Some reports may have incomplete information.

Do you take Fludara and have Chickenpox?

- Check whether Chickenpox 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 Fludara:

Fludara (46,686 reports)

Chickenpox treatments and more:

Chickenpox (3,552 reports)

Browse all side effects of Fludara:

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 Chickenpox:

Chickenpox (333 drugs)

Browse all the conditions that are associated with Chickenpox:

Chickenpox (591 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on fludarabine phosphate (the active ingredients of Fludara) and Fludara (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.