Qualaquin and Oa - a phase IV clinical study of FDA data

Summary:

We study 95,929 people who take Qualaquin (quinine sulfate) or have Oa. No report of Oa is found in people who take Qualaquin.

The phase IV clinical study is created by eHealthMe based on reports from the FDA, and is updated regularly.

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.

What is Oa?

Oa (osteoarthritis /a joint disease caused by cartilage loss in a joint) is found to be associated with 1,904 drugs and 2,627 conditions by eHealthMe. Check the latest studies of Oa.

On Jan, 10, 2026

No report is found.

Do you take Qualaquin and have Oa?

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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Qualaquin:

Qualaquin (281 reports)

Oa treatments and more:

Oa (95,648 reports)

How severe was Oa and when was it recovered:

Oa in Qualaquin

Expand to all the drugs that have ingredients of quinine sulfate:

Oa and drugs with ingredients of quinine sulfate (108 reports)

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 the drugs that are associated with Oa:

Browse all the conditions that are associated with Oa:

How the study uses the data?

The study uses data from the FDA. It is based on quinine sulfate (the active ingredients of Qualaquin) and Qualaquin (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.