Codeine vs. Oxycodone hydrochloride: side effect and effectiveness comparison (a real world drug study)

Summary:

We compare the side effects and drug effectiveness of Codeine and Oxycodone hydrochloride. The phase IV clinical study is created by eHealthMe based on reports (from sources including the FDA) of 389,873 people who take Codeine and Oxycodone hydrochloride, and is updated regularly.

What is Codeine?

Codeine has active ingredients of codeine sulfate. It is often used in pain. eHealthMe is studying from 42,342 Codeine users. Check the latest studies of Codeine.

What is Oxycodone hydrochloride?

Oxycodone hydrochloride has active ingredients of oxycodone hydrochloride. It is often used in pain. eHealthMe is studying from 36,817 Oxycodone hydrochloride users. Check the latest studies of Oxycodone hydrochloride.



On May, 17, 2026

389,873 people who take Codeine and Oxycodone hydrochloride are studied.

Codeine vs Oxycodone hydrochloride drug comparison reports.

Drugs being compared in this study:

  • Oxycodone Hydrochloride (oxycodone hydrochloride)
  • Codeine (codeine sulfate)

Most common side effects of the drugs, overall:

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Most common side effects of the drugs, in long term (1+ years) use:

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Drug effectiveness:

Codeine:

  • not at all: 2.74 %
  • somewhat: 25.89 %
  • moderate: 36.21 %
  • high: 26.74 %
  • very high: 8.42 %

Oxycodone Hydrochloride:

  • not at all: 1.62 %
  • somewhat: 16.41 %
  • moderate: 38.94 %
  • high: 30.67 %
  • very high: 12.37 %

Want to compare Codeine with Oxycodone hydrochloride?

- Personalize this study to your gender and age (0-99+)

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.



Related studies

Alternative drugs to, pros and cons of:

Browse all side effects of Codeine:

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 Oxycodone hydrochloride:

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 is based on codeine sulfate and oxycodone hydrochloride (the active ingredients of Codeine and Oxycodone hydrochloride, respectively). Other drugs that have the same active ingredients (e.g. generic drugs or brand names) are also considered. Dosage of drugs is not considered in the study.

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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