Amrix vs. Kadian: side effect and effectiveness comparison (a real world drug study)
Summary:
We compare the side effects and drug effectiveness of Amrix and Kadian. The phase IV clinical study is created by eHealthMe based on reports (from sources including the FDA) of 350,217 people who take Amrix and Kadian, and is updated regularly.
What is Amrix?
Amrix has active ingredients of cyclobenzaprine hydrochloride. It is often used in back pain. eHealthMe is studying from 1,130 Amrix users. Check the latest studies of Amrix.
What is Kadian?
Kadian has active ingredients of morphine sulfate. It is often used in pain. eHealthMe is studying from 23,045 Kadian users. Check the latest studies of Kadian.
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 >>>.
350,217 people who take Amrix and Kadian are studied.

Drugs being compared in this study:
- Kadian (morphine sulfate)
- Amrix (cyclobenzaprine hydrochloride)
Most common side effects of the drugs, overall:
Most common side effects of the drugs, in long term (1+ years) use:
Drug effectiveness:
Amrix:
- not at all: 3.93 %
- somewhat: 30.62 %
- moderate: 39.3 %
- high: 20.5 %
- very high: 5.66 %
Kadian:
- not at all: 3.63 %
- somewhat: 22.14 %
- moderate: 41.18 %
- high: 25.3 %
- very high: 7.74 %
Want to compare Amrix with Kadian?
- 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 publications that referenced our studies
- Rasmy A, Rahal M, Kisana M, Ahmad S, Salah A, "Morphine induced thrombocytopenia: A case report", Journal of Case Reports and Images in Oncology, 2015 Dec .
- Rasmy A, Rahal M, Kisana M, Ahmad S, Salah A, "Morphine induced thrombocytopenia: A case report", Journal of Case Reports and Images in Oncology, 2015 Dec .
Related studies
Alternative drugs to, pros and cons of:
Browse all side effects of Amrix:
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 zBrowse all side effects of Kadian:
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 zHow the study uses the data?
The study is based on cyclobenzaprine hydrochloride and morphine sulfate (the active ingredients of Amrix and Kadian, 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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