Actemra and Myositis - a phase IV clinical study of FDA data

Summary:

Myositis is reported as a side effect among people who take Actemra (tocilizumab), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Humira, and have Crohn's disease.

The phase IV clinical study analyzes which people have Myositis when taking Actemra. It is created by eHealthMe based on reports of 102,551 people who have side effects when taking Actemra from the FDA, and is updated regularly.

What is Actemra?

Actemra has active ingredients of tocilizumab. It is often used in rheumatoid arthritis. eHealthMe is studying from 102,759 Actemra users. Check the latest studies of Actemra.

What is Myositis?

Myositis (inflammation of the muscles) is found to be associated with 828 drugs and 1,135 conditions by eHealthMe. Check the latest studies of Myositis.

On Jul, 17, 2026

102,551 people reported to have side effects when taking Actemra.
Among them, 88 people (0.09%) have Myositis.

Among these 88 people:

How long have people been on Actemra when they have Myositis? *

What is the gender of people who have Myositis when taking Actemra? *

female: 56.96 %
male: 43.04 %

What is the age of people who have Myositis when taking Actemra? *

What are other drugs people take besides Actemra? *

What are other side effects people have besides Myositis? *

Drug Ineffective: 45 people, 51.14%
Arthritis (form of joint disorder that involves inflammation of one or more joints): 42 people, 47.73%
Joint Pain: 42 people, 47.73%
Synovitis (inflammation of the synovial membrane): 41 people, 46.59%
Pain: 40 people, 45.45%
High Blood Pressure: 39 people, 44.32%
Infusion Related Reaction: 37 people, 42.05%
Weight Decreased: 36 people, 40.91%
Nasopharyngitis (inflammation of the nasopharynx): 36 people, 40.91%
Peripheral Swelling: 34 people, 38.64%

What are the existing conditions these people have? *

Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 18 people, 20.45%
Psoriasis (immune-mediated disease that affects the skin): 17 people, 19.32%
Ankylosing Spondylitis (type of arthritis affecting the spine): 16 people, 18.18%
Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 15 people, 17.05%
Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 14 people, 15.91%
Juvenile Rheumatoid Arthritis (joint inflammation in children due to systemic disease): 11 people, 12.50%
Ingrowing Nail: 10 people, 11.36%
Still's Disease Adult Onset (a rare illness that causes high fevers, rash, and joint pain in adult just started): 3 people, 3.41%
Arthropathy: 3 people, 3.41%
Stress And Anxiety: 2 people, 2.27%

* Approximation only. Some reports may have incomplete information.

Do you take Actemra and have Myositis?

- Check whether Myositis 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 Actemra:

Actemra (102,759 reports)

Myositis treatments and more:

Myositis (13,181 reports)

Browse all side effects of Actemra:

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 Myositis:

Myositis (828 drugs)

Browse all the conditions that are associated with Myositis:

Myositis (1,135 conditions)

Related publications that referenced our studies

Proti? D, Balti? S, Stupar N, Pavlov-Dolijanovi? S, Mugo?a S, Todorovi? Z, "A case of myositis with immunological background associated with statin use", Open Medicine, 2014 Oct .
Proti? D, Balti? S, Stupar N, Pavlov-Dolijanovi? S, Mugo?a S, Todorovi? Z, "A case of myositis with immunological background associated with statin use", Open Medicine, 2014 Oct .

How the study uses the data?

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