Pegasys and Effexor drug interactions - a phase IV clinical study of FDA data
Summary:
Drug interactions are reported among people who take Pegasys (peginterferon alfa 2a) and Effexor (venlafaxine hydrochloride). Common drug interactions include dizziness among females and fatigue among males.
The phase IV clinical study analyzes what interactions people have when they take Pegasys and Effexor. It is created by eHealthMe based on reports of 275 people who take the same drugs from the FDA, and is updated regularly.
What is Pegasys?
Pegasys has active ingredients of peginterferon alfa 2a. It is often used in hepatitis c. eHealthMe is studying from 57,446 Pegasys users. Check the latest studies of Pegasys.
What is Effexor?
Effexor has active ingredients of venlafaxine hydrochloride. It is often used in depression. eHealthMe is studying from 99,493 Effexor users. Check the latest studies of Effexor.
275 people who take Pegasys and Effexor together, and have interactions are studied.

What are the common drug interactions of Pegasys and Effexor, by gender? *
What are the common drug interactions of Pegasys and Effexor, 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 Pegasys and Effexor?
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Related studies:
Effectiveness of, side effects of, and alternative drugs to the 2 drugs:
Browse all drug interactions of Pegasys and Effexor:
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 Pegasys:
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 Effexor:
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 Pegasys 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 Effexor 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 peginterferon alfa 2a and venlafaxine hydrochloride (the active ingredients of Pegasys and Effexor, respectively), and Pegasys and Effexor (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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