Naproxen and Skin hyperpigmentation - a phase IV clinical study of FDA data

Summary:

Skin hyperpigmentation is reported as a side effect among people who take Naproxen (naproxen), especially for people who are female, 60+ old, have been taking the drug for 5 - 10 years also take Cellcept, and have Pemphigoid.

The phase IV clinical study analyzes which people have Skin hyperpigmentation 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 72,033 Naproxen users. Check the latest studies of Naproxen.

What is Skin hyperpigmentation?

Skin hyperpigmentation (disorders affect the colour of your skin) is found to be associated with 639 drugs and 812 conditions by eHealthMe. Check the latest studies of Skin hyperpigmentation.

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, 27, 2026

68,942 people reported to have side effects when taking Naproxen.
Among them, 16 people (0.02%) have Skin hyperpigmentation.

Could Naproxen cause Skin hyperpigmentation?

Among these 16 people:

How long have people been on Naproxen when they have Skin hyperpigmentation? *

What is the gender of people who have Skin hyperpigmentation when taking Naproxen? *

female: 66.67 %
male: 33.33 %

What is the age of people who have Skin hyperpigmentation when taking Naproxen? *

What are other drugs people take besides Naproxen? *

What are other side effects people have besides Skin hyperpigmentation? *

Itching: 7 people, 43.75%
Rashes (redness): 6 people, 37.50%
Fatigue (feeling of tiredness): 5 people, 31.25%
Insomnia (sleeplessness): 4 people, 25.00%
Papule: 4 people, 25.00%
Milia (dead skin becomes trapped in small pockets at the surface of the skin or mouth): 3 people, 18.75%
Diarrhea: 3 people, 18.75%
Pemphigoid (tense blisters on the skin): 3 people, 18.75%
Pigmentation Disorder (disturbances of human skin colour): 3 people, 18.75%
Drug Ineffective: 3 people, 18.75%

What are the existing conditions these people have? *

Hyperlipidaemia (presence of excess lipids in the blood): 3 people, 18.75%
High Blood Pressure: 3 people, 18.75%
Diabetes: 3 people, 18.75%
Pemphigoid (tense blisters on the skin): 3 people, 18.75%
Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure): 2 people, 12.50%
Nausea (feeling of having an urge to vomit): 2 people, 12.50%
Essential Thrombocythaemia (chronic blood cancer): 1 person, 6.25%
Headache (pain in head): 1 person, 6.25%
Hair Loss: 1 person, 6.25%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Naproxen and have Skin hyperpigmentation?

- Check whether Skin hyperpigmentation 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 (72,033 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 Skin hyperpigmentation:

Skin hyperpigmentation (639 drugs)

Browse all the conditions that are associated with Skin hyperpigmentation:

Skin hyperpigmentation (812 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.