Naproxen and Gastric bypass - a phase IV clinical study of FDA data

Summary:

Gastric bypass is reported as a side effect among people who take Naproxen (naproxen), especially for people who are male, 40-49 old, have been taking the drug for < 1 month also take Xyrem, and have Narcolepsy.

The phase IV clinical study analyzes which people have Gastric bypass when taking Naproxen. It is created by eHealthMe based on reports of 68,942 people who have side effects when taking Naproxen from the FDA, and is updated regularly.

What is Naproxen?

Naproxen has active ingredients of naproxen. It is often used in pain. eHealthMe is studying from 72,034 Naproxen users. Check the latest studies of Naproxen.

What is Gastric bypass?

Gastric bypass is found to be associated with 241 drugs and 337 conditions by eHealthMe. Check the latest studies of Gastric bypass.

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, 02, 2026

68,942 people reported to have side effects when taking Naproxen.
Among them, 15 people (0.02%) have Gastric bypass.

Among these 15 people:

How long have people been on Naproxen when they have Gastric bypass? *

What is the gender of people who have Gastric bypass when taking Naproxen? *

female: 50 %
male: 50 %

What is the age of people who have Gastric bypass when taking Naproxen? *

What are other drugs people take besides Naproxen? *

What are other side effects people have besides Gastric bypass? *

Weight Decreased: 4 people, 26.67%
Weight Increased: 4 people, 26.67%
Dizziness: 3 people, 20.00%
Skin Blushing/flushing (a sudden reddening of the face, neck): 3 people, 20.00%
Blood Potassium Decreased: 3 people, 20.00%
Vitamin B1 Decreased: 3 people, 20.00%
Nausea (feeling of having an urge to vomit): 3 people, 20.00%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 2 people, 13.33%
Hallucinations (sensations that appear real but are created by your mind): 2 people, 13.33%
Sleep Apnea Syndrome: 2 people, 13.33%

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 10 people, 66.67%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 5 people, 33.33%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 3 people, 20.00%
Neuralgia (pain in one or more nerves): 2 people, 13.33%
Migraine (headache): 2 people, 13.33%
Intervertebral Disc Protrusion (spinal disc protrusion): 2 people, 13.33%
Fibromyalgia (a long-term condition which causes pain all over the body): 2 people, 13.33%
Depression: 2 people, 13.33%
Drowsiness: 1 person, 6.67%
Blood Pressure Abnormal: 1 person, 6.67%

* Approximation only. Some reports may have incomplete information.

Do you take Naproxen and have Gastric bypass?

- Check whether Gastric bypass 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 Naproxen:

Naproxen (72,034 reports)

Gastric bypass treatments and more:

Gastric bypass (3,008 reports)

Browse all side effects of Naproxen:

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 Gastric bypass:

Gastric bypass (241 drugs)

Browse all the conditions that are associated with Gastric bypass:

Gastric bypass (337 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on naproxen (the active ingredients of Naproxen) and Naproxen (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.