Rituxan and Thyroid cancer - a phase IV clinical study of FDA data

Summary:

Thyroid cancer is reported as a side effect among people who take Rituxan (rituximab), especially for people who are female, 60+ old, have been taking the drug for 1 - 2 years also take Coumadin, and have Atrial fibrillation/flutter.

The phase IV clinical study analyzes which people have Thyroid cancer when taking Rituxan. It is created by eHealthMe based on reports of 64,282 people who have side effects when taking Rituxan from the FDA, and is updated regularly.

What is Rituxan?

Rituxan has active ingredients of rituximab. It is often used in rheumatoid arthritis. eHealthMe is studying from 64,791 Rituxan users. Check the latest studies of Rituxan.

What is Thyroid cancer?

Thyroid cancer is found to be associated with 587 drugs and 844 conditions by eHealthMe. Check the latest studies of Thyroid cancer.

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, 27, 2026

64,282 people reported to have side effects when taking Rituxan.
Among them, 19 people (0.03%) have Thyroid cancer.

Among these 19 people:

How long have people been on Rituxan when they have Thyroid cancer? *

What is the gender of people who have Thyroid cancer when taking Rituxan? *

female: 82.35 %
male: 17.65 %

What is the age of people who have Thyroid cancer when taking Rituxan? *

What are other drugs people take besides Rituxan? *

What are other side effects people have besides Thyroid cancer? *

Drug Ineffective: 4 people, 21.05%
Pulmonary Congestion (congestion in the lungs): 3 people, 15.79%
Rhinorrhea (watery mucus discharge from the nose): 3 people, 15.79%
Dry Skin: 3 people, 15.79%
Dermatitis Acneiform (dermatoses including acne vulgaris, rosacea, folliculitis, and perioral dermatitis): 3 people, 15.79%
Conjunctivitis (pink eye): 3 people, 15.79%
Pulmonary Mass: 3 people, 15.79%
Rashes (redness): 3 people, 15.79%
Reading Disorder (problem in areas of the brain that help interpret language): 3 people, 15.79%
Body Temperature Increased: 3 people, 15.79%

What are the existing conditions these people have? *

Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 4 people, 21.05%
Lung Neoplasm Malignant (cancer tumour of lung): 3 people, 15.79%
Pulmonary Congestion (congestion in the lungs): 3 people, 15.79%
Stress And Anxiety: 2 people, 10.53%
Mantle Cell Lymphoma (cancer of lymphocytes, a type of white blood cell): 2 people, 10.53%
Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 1 person, 5.26%
Arthritis (form of joint disorder that involves inflammation of one or more joints): 1 person, 5.26%
Breast Cancer: 1 person, 5.26%
Bronchitis Chronic (inflammation of the mucous membrane in the bronchial tubes- chronic): 1 person, 5.26%
Bronchospasm (spasm of bronchial smooth muscle producing narrowing of the bronchi): 1 person, 5.26%

* Approximation only. Some reports may have incomplete information.

Do you take Rituxan and have Thyroid cancer?

- Check whether Thyroid cancer 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 Rituxan:

Rituxan (64,791 reports)

Thyroid cancer treatments and more:

Thyroid cancer (24,394 reports)

Browse all side effects of Rituxan:

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 Thyroid cancer:

Thyroid cancer (587 drugs)

Browse all the conditions that are associated with Thyroid cancer:

Thyroid cancer (844 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on rituximab (the active ingredients of Rituxan) and Rituxan (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.