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

Summary:

Fainting is reported as a side effect among people who take Hepsera (adefovir dipivoxil), especially for people who are male, 60+ old, have been taking the drug for 6 - 12 months also take Flagyl, and have Gastric ulcer helicobacter.

The phase IV clinical study analyzes which people have Fainting when taking Hepsera. It is created by eHealthMe based on reports of 3,102 people who have side effects when taking Hepsera from the FDA, and is updated regularly.

What is Hepsera?

Hepsera has active ingredients of adefovir dipivoxil. It is often used in hepatitis b. eHealthMe is studying from 3,113 Hepsera users. Check the latest studies of Hepsera.

What is Fainting?

Fainting (loss of consciousness and postural tone) is found to be associated with 2,445 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 Sep, 01, 2026

3,102 people reported to have side effects when taking Hepsera.
Among them, 23 people (0.74%) have Fainting.

Among these 23 people:

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

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

female: 4.55 %
male: 95.45 %

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

What are other drugs people take besides Hepsera? *

What are other side effects people have besides Fainting? *

Insomnia (sleeplessness): 18 people, 78.26%
Seizures (abnormal excessive or synchronous neuronal activity in the brain): 17 people, 73.91%
Epilepsy (common and diverse set of chronic neurological disorders characterized by seizures): 17 people, 73.91%
Memory Loss: 17 people, 73.91%
Weakness: 4 people, 17.39%
Muscle Aches (muscle pain): 4 people, 17.39%
Aspartate Aminotransferase Increased: 4 people, 17.39%
Blood Lactic Acid Increased: 4 people, 17.39%
Loss Of Consciousness: 4 people, 17.39%
Anuria (failure of the kidneys to produce urine): 4 people, 17.39%

What are the existing conditions these people have? *

Gastric Ulcer Helicobacter (ulcer caused by helicobacter bacteria): 17 people, 73.91%
Hepatitis C: 4 people, 17.39%
Viral Infection: 1 person, 4.35%

* Approximation only. Some reports may have incomplete information.

Do you take Hepsera 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 Hepsera:

Hepsera (3,113 reports)

Fainting treatments and more:

Fainting (131,321 reports)

Browse all side effects of Hepsera:

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 (2,445 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 adefovir dipivoxil (the active ingredients of Hepsera) and Hepsera (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.