Naprosyn and Qualaquin drug interactions - a phase IV clinical study of FDA data

Summary:

The phase IV clinical study analyzes what interactions people have when they take Naprosyn and Qualaquin. It is created by eHealthMe based on reports of 1 person who takes the same drugs from the FDA, and is updated regularly.

What is Naprosyn?

Naprosyn has active ingredients of naproxen. It is often used in pain. eHealthMe is studying from 16,738 Naprosyn users. Check the latest studies of Naprosyn.

What is Qualaquin?

Qualaquin has active ingredients of quinine sulfate. It is often used in leg pain. eHealthMe is studying from 281 Qualaquin users. Check the latest studies of Qualaquin.



On Feb, 20, 2026

1 person who takes Naprosyn and Qualaquin together, and has interactions is studied.

Naprosyn and Qualaquin drug interactions.

What are the common drug interactions of Naprosyn and Qualaquin, by gender? *:

female:

  1. Abdominal pain
  2. Coagulopathy (blood's ability to clot is impaired)
  3. Drug hypersensitivity
  4. Epistaxis (bleed from the nose)
  5. Haemolytic uraemic syndrome (blood clotting disease caused by e. coli infection, birth control pills, pneumonia, medications, and more)
  6. Haemorrhage (bleeding)
  7. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
  8. Renal failure acute (rapid kidney dysfunction)
  9. Thrombotic thrombocytopenic purpura (a rare blood disorder characterized by clotting in small blood vessels of the body)

male:

n/a

What are the common drug interactions of Naprosyn and Qualaquin, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

n/a

50-59:

  1. Abdominal pain
  2. Coagulopathy (blood's ability to clot is impaired)
  3. Drug hypersensitivity
  4. Epistaxis (bleed from the nose)
  5. Haemolytic uraemic syndrome (blood clotting disease caused by e. coli infection, birth control pills, pneumonia, medications, and more)
  6. Haemorrhage (bleeding)
  7. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
  8. Renal failure acute (rapid kidney dysfunction)
  9. Thrombotic thrombocytopenic purpura (a rare blood disorder characterized by clotting in small blood vessels of the body)

60+:

n/a

* Approximation only. Some reports may have incomplete information.

Do you take Naprosyn and Qualaquin?

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Naprosyn and Qualaquin:

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 side effects of Naprosyn:

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 side effects of Qualaquin:

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 interactions between Naprosyn and drugs from A to Z:

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 interactions between Qualaquin and drugs from A to Z:

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

How the study uses the data?

The study uses data from the FDA. It is based on naproxen and quinine sulfate (the active ingredients of Naprosyn and Qualaquin, respectively), and Naprosyn and Qualaquin (the brand names). 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.



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