Amrix and Rashes - a phase IV clinical study of FDA data

Summary:

Rashes is reported as a side effect among people who take Amrix (cyclobenzaprine hydrochloride), especially for people who are female, 50-59 old, have been taking the drug for < 1 month also take Lipitor, and have Fibromyalgia.

The phase IV clinical study analyzes which people have Rashes when taking Amrix. It is created by eHealthMe based on reports of 898 people who have side effects when taking Amrix from the FDA, 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 Rashes?

Rashes (redness) is found to be associated with 3,715 drugs and 6,215 conditions by eHealthMe. Check the latest studies of Rashes.

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 Jul, 27, 2026

898 people reported to have side effects when taking Amrix.
Among them, 28 people (3.12%) have Rashes.

Among these 28 people:

How long have people been on Amrix when they have Rashes? *

What is the gender of people who have Rashes when taking Amrix? *

female: 92.86 %
male: 7.14 %

What is the age of people who have Rashes when taking Amrix? *

What are other drugs people take besides Amrix? *

What are other side effects people have besides Rashes? *

Dyspnea (difficult or laboured breathing): 8 people, 28.57%
Fatigue (feeling of tiredness): 7 people, 25.00%
Joint Pain: 7 people, 25.00%
Abdominal Pain Upper: 6 people, 21.43%
Nausea (feeling of having an urge to vomit): 6 people, 21.43%
Dizziness: 5 people, 17.86%
Confusional State: 4 people, 14.29%
Drug Hypersensitivity: 4 people, 14.29%
Fall: 4 people, 14.29%
Diarrhea: 4 people, 14.29%

What are the existing conditions these people have? *

Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 3 people, 10.71%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 3 people, 10.71%
Chronic Myeloid Leukaemia (long lasting type of cancer that starts in the blood-forming cells of the bone marrow and invades the blood): 3 people, 10.71%
Fibromyalgia (a long-term condition which causes pain all over the body): 3 people, 10.71%
Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 2 people, 7.14%
Pain: 2 people, 7.14%
Insomnia (sleeplessness): 2 people, 7.14%
Systemic Lupus Erythematosus (an autoimmune disease, which means the body's immune system mistakenly, attacks healthy tissue): 1 person, 3.57%
Glucose Tolerance Impaired (blood glucose is raised beyond normal levels, but not high enough to warrant a diabetes diagnosis): 1 person, 3.57%
Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 1 person, 3.57%

* Approximation only. Some reports may have incomplete information.

Do you take Amrix and have Rashes?

- Check whether Rashes 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 Amrix:

Amrix (1,130 reports)

Rashes treatments and more:

Rashes (702,909 reports)

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 z

Browse all the drugs that are associated with Rashes:

Rashes (3,715 drugs)

Browse all the conditions that are associated with Rashes:

Rashes (6,215 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on cyclobenzaprine hydrochloride (the active ingredients of Amrix) and Amrix (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.