Extavia and Cellulitis - a phase IV clinical study of FDA data

Summary:

Cellulitis is reported as a side effect among people who take Extavia (interferon beta-1b), especially for people who are female, 60+ old, have been taking the drug for 2 - 5 years also take Aspirin, and have Muscle spasticity.

The phase IV clinical study analyzes which people have Cellulitis when taking Extavia. It is created by eHealthMe based on reports of 4,879 people who have side effects when taking Extavia from the FDA, and is updated regularly.

What is Extavia?

Extavia has active ingredients of interferon beta-1b. It is often used in multiple sclerosis. eHealthMe is studying from 4,888 Extavia users. Check the latest studies of Extavia.

What is Cellulitis?

Cellulitis (infection under the skin) is found to be associated with 2,116 drugs and 2,334 conditions by eHealthMe. Check the latest studies of Cellulitis.

On Apr, 27, 2026

4,879 people reported to have side effects when taking Extavia.
Among them, 29 people (0.59%) have Cellulitis.

Among these 29 people:

How long have people been on Extavia when they have Cellulitis? *

What is the gender of people who have Cellulitis when taking Extavia? *

female: 79.31 %
male: 20.69 %

What is the age of people who have Cellulitis when taking Extavia? *

What are other drugs people take besides Extavia? *

What are other side effects people have besides Cellulitis? *

Pain: 8 people, 27.59%
Chills (felling of cold): 7 people, 24.14%
Weakness: 7 people, 24.14%
Urinary Tract Infection: 7 people, 24.14%
Fever: 5 people, 17.24%
Osteoporosis (bones weak and more likely to break): 4 people, 13.79%
Hyperhidrosis (abnormally increased sweating): 4 people, 13.79%
Injection Site Haematoma (localized swelling filled with blood at injection site): 4 people, 13.79%
Injection Site Haemorrhage (bleeding from injection site): 4 people, 13.79%
Malaise (a feeling of general discomfort or uneasiness): 4 people, 13.79%

What are the existing conditions these people have? *

Relapsing-Remitting Multiple Sclerosis (reoccurrence of an inflammatory disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged): 1 person, 3.45%
Partial Seizures (seizures which affect only a part of the brain at onset): 1 person, 3.45%
Muscle Spasticity (tight or stiff muscles and an inability to control those muscles): 1 person, 3.45%

* Approximation only. Some reports may have incomplete information.

Do you take Extavia and have Cellulitis?

- Check whether Cellulitis 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 Extavia:

Extavia (4,888 reports)

Cellulitis treatments and more:

Cellulitis (75,289 reports)

Browse all side effects of Extavia:

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 Cellulitis:

Cellulitis (2,116 drugs)

Browse all the conditions that are associated with Cellulitis:

Cellulitis (2,334 conditions)

Related publications that referenced our studies

Yaylaci S, Yilmaz EU, Guclu E, Kumsar NA, Tamer A, Karabay O, "Clozapine-Induced Febrile Neutropenia and Cellulitis", Turkish journal of emergency medicine, 2014 Mar .
Yaylaci S, Yilmaz EU, Guclu E, Kumsar NA, Tamer A, Karabay O, "Clozapine-Induced Febrile Neutropenia and Cellulitis", Turkish journal of emergency medicine, 2014 Mar .

How the study uses the data?

The study uses data from the FDA. It is based on interferon beta-1b (the active ingredients of Extavia) and Extavia (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.