Arava and Acarodermatitis - a phase IV clinical study of FDA data

Summary:

Acarodermatitis is reported as a side effect among people who take Arava (leflunomide), especially for people who are female, 40-49 old, have been taking the drug for < 1 month also take Celebrex, and have Urinary tract infection.

The phase IV clinical study analyzes which people have Acarodermatitis when taking Arava. It is created by eHealthMe based on reports of 75,674 people who have side effects when taking Arava from the FDA, and is updated regularly.

What is Arava?

Arava has active ingredients of leflunomide. It is often used in rheumatoid arthritis. eHealthMe is studying from 76,039 Arava users. Check the latest studies of Arava.

What is Acarodermatitis?

Acarodermatitis (skin inflammation caused by mites (acarids)) is found to be associated with 272 drugs and 306 conditions by eHealthMe. Check the latest studies of Acarodermatitis.



On Oct, 15, 2025

75,674 people reported to have side effects when taking Arava.
Among them, 38 people (0.05%) have Acarodermatitis.

Could Arava cause Acarodermatitis?

Among these 38 people:

How long have people been on Arava when they have Acarodermatitis? *

  • < 1 month: 77.78 %
  • 1 - 6 months: 0.0 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 22.22 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

What is the gender of people who have Acarodermatitis when taking Arava? *

  • female: 100 %
  • male: 0.0 %

What is the age of people who have Acarodermatitis when taking Arava? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 68.57 %
  • 50-59: 25.71 %
  • 60+: 5.71 %

What are other drugs people take besides Arava? *

  1. Celebrex: 27 people, 71.05%
  2. Actemra: 26 people, 68.42%
  3. Cymbalta: 25 people, 65.79%
  4. Allegra: 24 people, 63.16%
  5. Codeine: 21 people, 55.26%
  6. Naprosyn: 16 people, 42.11%
  7. Macrobid: 14 people, 36.84%
  8. Prednisone: 12 people, 31.58%
  9. Omega 3: 12 people, 31.58%
  10. Eucrisa: 11 people, 28.95%

What are other side effects people have besides Acarodermatitis? *

  1. Pain: 32 people, 84.21%
  2. Drug Hypersensitivity: 32 people, 84.21%
  3. Sinusitis (inflammation of sinus): 29 people, 76.32%
  4. Fever: 29 people, 76.32%
  5. Urticaria (rash of round, red welts on the skin that itch intensely): 28 people, 73.68%
  6. White Blood Cells Urine Positive: 26 people, 68.42%
  7. Musculoskeletal Stiffness (stiffness of the body's muscles, joints, tendons, ligaments and nerves): 26 people, 68.42%
  8. Pericarditis (inflammation of the pericardium): 26 people, 68.42%
  9. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect): 26 people, 68.42%
  10. Oral Herpes (viral infection of mouth): 26 people, 68.42%

What are the existing conditions these people have? *

  1. Urinary Tract Infection: 26 people, 68.42%
  2. Cellulitis (infection under the skin): 25 people, 65.79%
  3. Juvenile Rheumatoid Arthritis (joint inflammation in children due to systemic disease): 22 people, 57.89%
  4. Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 6 people, 15.79%
  5. Still's Disease Adult Onset (a rare illness that causes high fevers, rash, and joint pain in adult just started): 4 people, 10.53%
  6. Lung Disorder (lung disease): 1 person, 2.63%

* Approximation only. Some reports may have incomplete information.

Do you take Arava and have Acarodermatitis?

- Check whether Acarodermatitis 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 Arava:

Acarodermatitis treatments and more:

How severe was Acarodermatitis and when was it recovered:

Expand to all the drugs that have ingredients of leflunomide:

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Arava:

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 Acarodermatitis:

Browse all the conditions that are associated with Acarodermatitis:

Drugs similar to Arava and Acarodermatitis :


How the study uses the data?

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



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