Plegridy and Fainting - a phase IV clinical study of FDA data

Summary:

Fainting is reported as a side effect among people who take Plegridy (peginterferon beta-1a), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Ampyra, and have Multiple sclerosis.

The phase IV clinical study analyzes which people have Fainting when taking Plegridy. It is created by eHealthMe based on reports of 14,748 people who have side effects when taking Plegridy from the FDA, and is updated regularly.

What is Plegridy?

Plegridy has active ingredients of peginterferon beta-1a. eHealthMe is studying from 14,764 Plegridy users. Check the latest studies of Plegridy.

What is Fainting?

Fainting (loss of consciousness and postural tone) is found to be associated with 2,447 drugs and 3,548 conditions by eHealthMe. Check the latest studies of Fainting.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 13, 2026

14,748 people reported to have side effects when taking Plegridy.
Among them, 74 people (0.5%) have Fainting.

Among these 74 people:

How long have people been on Plegridy when they have Fainting? *

What is the gender of people who have Fainting when taking Plegridy? *

female: 76.39 %
male: 23.61 %

What is the age of people who have Fainting when taking Plegridy? *

What are other drugs people take besides Plegridy? *

What are other side effects people have besides Fainting? *

Nausea And Vomiting: 14 people, 18.92%
Dizziness: 12 people, 16.22%
Weakness: 11 people, 14.86%
Gait Disturbance: 11 people, 14.86%
Nausea (feeling of having an urge to vomit): 10 people, 13.51%
Loss Of Consciousness: 9 people, 12.16%
Influenza Like Illness: 9 people, 12.16%
Headache (pain in head): 9 people, 12.16%
Fall: 9 people, 12.16%
Mobility Decreased (ability to move is reduced): 8 people, 10.81%

What are the existing conditions these people have? *

Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 61 people, 82.43%
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): 5 people, 6.76%
High Blood Pressure: 4 people, 5.41%
Gait Disturbance: 3 people, 4.05%
Depression: 3 people, 4.05%
Systemic Lupus Erythematosus (an autoimmune disease, which means the body's immune system mistakenly, attacks healthy tissue): 2 people, 2.70%
Stress And Anxiety: 2 people, 2.70%
Pain: 2 people, 2.70%
Muscle Spasms (muscle contraction): 2 people, 2.70%
Restless Leg Syndrome (a powerful urge to move your legs): 1 person, 1.35%

* Approximation only. Some reports may have incomplete information.

Do you take Plegridy and have Fainting?

- Check whether Fainting 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 Plegridy:

Plegridy (14,764 reports)

Fainting treatments and more:

Fainting (131,321 reports)

Browse all side effects of Plegridy:

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 Fainting:

Fainting (2,447 drugs)

Browse all the conditions that are associated with Fainting:

Fainting (3,548 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on peginterferon beta-1a (the active ingredients of Plegridy) and Plegridy (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.