Arava and Bactrim drug interactions - a phase IV clinical study of FDA data
Summary:
Drug interactions are reported among people who take Arava (leflunomide) and Bactrim (sulfamethoxazole; trimethoprim). Common drug interactions include nausea among females and paraesthesia among males.
The phase IV clinical study analyzes what interactions people have when they take Arava and Bactrim. It is created by eHealthMe based on reports of 286 people who take the same drugs 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 76,040 Arava users. Check the latest studies of Arava.
What is Bactrim?
Bactrim has active ingredients of sulfamethoxazole; trimethoprim. It is often used in urinary tract infection. eHealthMe is studying from 89,117 Bactrim users. Check the latest studies of Bactrim.
286 people who take Arava and Bactrim together, and have interactions are studied.

What are the common drug interactions of Arava and Bactrim, by gender? *
What are the common drug interactions of Arava and Bactrim, by age (0-1 to 60+)? *
What are the existing conditions these people have? *
* Approximation only. Some reports may have incomplete information.
Do you take Arava and Bactrim?
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Related studies:
Effectiveness of, side effects of, and alternative drugs to the 2 drugs:
Browse all drug interactions of Arava and Bactrim:
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 zSub-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 zBrowse all side effects of Bactrim:
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 zBrowse all interactions between Arava and drugs from A to Z:
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 zBrowse all interactions between Bactrim and drugs from A to Z:
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 zHow the study uses the data?
The study uses data from the FDA. It is based on leflunomide and sulfamethoxazole; trimethoprim (the active ingredients of Arava and Bactrim, respectively), and Arava and Bactrim (the brand names). 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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