Fentanyl and Enterococcus test positive - a phase IV clinical study of FDA data

Summary:

Enterococcus test positive is reported as a side effect among people who take Fentanyl (fentanyl citrate), especially for people who are female, 50-59 old, also take Lasix, and have Hypercalcaemia of malignancy.

The phase IV clinical study analyzes which people have Enterococcus test positive when taking Fentanyl. It is created by eHealthMe based on reports of 72,646 people who have side effects when taking Fentanyl from the FDA, and is updated regularly.

What is Fentanyl?

Fentanyl has active ingredients of fentanyl citrate. It is often used in pain. eHealthMe is studying from 73,301 Fentanyl users. Check the latest studies of Fentanyl.

What is Enterococcus test positive?

Enterococcus test positive is found to be associated with 187 drugs and 277 conditions by eHealthMe. Check the latest studies of Enterococcus test positive.

On Feb, 03, 2026

72,646 people reported to have side effects when taking Fentanyl.
Among them, 18 people (0.02%) have Enterococcus test positive.

Could Fentanyl cause Enterococcus test positive?

Among these 18 people:

What is the gender of people who have Enterococcus test positive when taking Fentanyl? *

female: 66.67 %
male: 33.33 %

What is the age of people who have Enterococcus test positive when taking Fentanyl? *

What are other drugs people take besides Fentanyl? *

What are other side effects people have besides Enterococcus test positive? *

Thrombocytopenia (decrease of platelets in blood): 13 people, 72.22%
Malnutrition (a condition that results from eating a diet in which certain nutrients are lacking): 12 people, 66.67%
Hypotension (abnormally low blood pressure): 12 people, 66.67%
Cardiac Failure Congestive: 11 people, 61.11%
Sepsis (a severe blood infection that can lead to organ failure and death): 11 people, 61.11%
Pleural Effusion (water on the lungs): 11 people, 61.11%
Atelectasis (partial or complete collapse of the lung): 10 people, 55.56%
Head Injury: 10 people, 55.56%
Chronic Renal Failure (kidney failure): 10 people, 55.56%
Weight Decreased: 10 people, 55.56%

What are the existing conditions these people have? *

Multiple Myeloma (cancer of the plasma cells): 9 people, 50.00%
Hypercalcaemia Of Malignancy (elevated calcium (ca+) level in the blood with cancer): 9 people, 50.00%
Hypercalcaemia (elevated calcium (ca+) level in the blood): 4 people, 22.22%
High Blood Pressure: 2 people, 11.11%
Breakthrough Pain: 2 people, 11.11%
Myeloid Leukaemia (a type of cancer in which the bone marrow makes abnormal myeloblasts): 1 person, 5.56%
Indigestion: 1 person, 5.56%
High Blood Cholesterol: 1 person, 5.56%
Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 1 person, 5.56%

* Approximation only. Some reports may have incomplete information.

Do you take Fentanyl and have Enterococcus test positive?

- Check whether Enterococcus test positive 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 Fentanyl:

Fentanyl (73,301 reports)

Browse all side effects of Fentanyl:

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 Enterococcus test positive:

Enterococcus test positive (187 drugs)

Browse all the conditions that are associated with Enterococcus test positive:

Enterococcus test positive (277 conditions)

Drugs similar to Fentanyl and Enterococcus test positive :

How the study uses the data?

The study uses data from the FDA. It is based on fentanyl citrate (the active ingredients of Fentanyl) and Fentanyl (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.