Mercaptopurine and Joint effusion - a phase IV clinical study of FDA data

Summary:

Joint effusion is reported as a side effect among people who take Mercaptopurine (mercaptopurine), especially for people who are male, 10-19 old, have been taking the drug for 2 - 5 years also take Methotrexate, and have Acute lymphocytic leukemia (all).

The phase IV clinical study analyzes which people have Joint effusion when taking Mercaptopurine. It is created by eHealthMe based on reports of 22,744 people who have side effects when taking Mercaptopurine from the FDA, and is updated regularly.

What is Mercaptopurine?

Mercaptopurine has active ingredients of mercaptopurine. It is often used in crohn's disease. eHealthMe is studying from 23,013 Mercaptopurine users. Check the latest studies of Mercaptopurine.

What is Joint effusion?

Joint effusion (presence of extra fluid in joint covering) is found to be associated with 868 drugs and 750 conditions by eHealthMe. Check the latest studies of Joint effusion.

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, 29, 2026

22,744 people reported to have side effects when taking Mercaptopurine.
Among them, 14 people (0.06%) have Joint effusion.

Could Mercaptopurine cause Joint effusion?

Among these 14 people:

How long have people been on Mercaptopurine when they have Joint effusion? *

What is the gender of people who have Joint effusion when taking Mercaptopurine? *

female: 33.33 %
male: 66.67 %

What is the age of people who have Joint effusion when taking Mercaptopurine? *

What are other drugs people take besides Mercaptopurine? *

What are other side effects people have besides Joint effusion? *

Aseptic Necrosis (the death of bone tissue due to a lack of blood supply): 8 people, 57.14%
Gait Disturbance: 5 people, 35.71%
Joint Pain: 4 people, 28.57%
Anaemia (lack of blood): 4 people, 28.57%
Headache (pain in head): 3 people, 21.43%
Giardiasis (intestinal infection caused by the parasite giardia lamblia): 3 people, 21.43%
Cytomegalovirus Viraemia (cytomegalo virus in blood stream): 3 people, 21.43%
Cytomegalovirus Colitis (an inflammation of the colon from virus): 3 people, 21.43%
Groin Pain: 3 people, 21.43%
Sinusitis (inflammation of sinus): 3 people, 21.43%

What are the existing conditions these people have? *

Acute Lymphocytic Leukemia (All) (cancer of the white blood cells characterized by excess lymphoblasts): 5 people, 35.71%
Inflammatory Bowel Disease: 3 people, 21.43%
Precursor B-Lymphoblastic Lymphoma (precursor b-cell cancer): 2 people, 14.29%
Pneumocystis Jiroveci Pneumonia (fungal infection of the lungs): 1 person, 7.14%
Pain: 1 person, 7.14%
Nervous System Disorder (a general class of medical conditions affecting the nervous system): 1 person, 7.14%
Headache (pain in head): 1 person, 7.14%
Bone Pain: 1 person, 7.14%
B-Cell Type Acute Leukaemia (cancer of the white blood cells): 1 person, 7.14%

* Approximation only. Some reports may have incomplete information.

Do you take Mercaptopurine and have Joint effusion?

- Check whether Joint effusion 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 Mercaptopurine:

Mercaptopurine (23,013 reports)

Joint effusion treatments and more:

Joint effusion (9,947 reports)

Browse all side effects of Mercaptopurine:

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 Joint effusion:

Joint effusion (868 drugs)

Browse all the conditions that are associated with Joint effusion:

Joint effusion (750 conditions)

How the study uses the data?

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