Norflex and Sinus disorder - a phase IV clinical study of FDA data

Summary:

Sinus disorder is reported as a side effect among people who take Norflex (orphenadrine citrate), especially for people who are female, 40-49 old, have been taking the drug for 2 - 5 years also take Celexa, and have Hepatitis c.

The phase IV clinical study analyzes which people have Sinus disorder when taking Norflex. It is created by eHealthMe based on reports of 1,749 people who have side effects when taking Norflex from the FDA, and is updated regularly.

What is Norflex?

Norflex has active ingredients of orphenadrine citrate. It is often used in muscle spasms. eHealthMe is studying from 1,951 Norflex users. Check the latest studies of Norflex.

What is Sinus disorder?

Sinus disorder (disease of sinus) is found to be associated with 1,251 drugs and 1,076 conditions by eHealthMe. Check the latest studies of Sinus disorder.

On Jul, 17, 2026

1,749 people reported to have side effects when taking Norflex.
Among them, 11 people (0.63%) have Sinus disorder.

Among these 11 people:

How long have people been on Norflex when they have Sinus disorder? *

What is the gender of people who have Sinus disorder when taking Norflex? *

female: 90.91 %
male: 9.09 %

What is the age of people who have Sinus disorder when taking Norflex? *

What are other drugs people take besides Norflex? *

What are other side effects people have besides Sinus disorder? *

Dyspnea (difficult or laboured breathing): 10 people, 90.91%
Coughing Up Blood: 9 people, 81.82%
Chest Pain: 9 people, 81.82%
Pain: 9 people, 81.82%
Weakness: 9 people, 81.82%
Raynaud's Phenomenon (discoloration of the fingers, toes, and occasionally other areas): 8 people, 72.73%
Blood Immunoglobulin G Increased: 8 people, 72.73%
Protein Total Increased: 8 people, 72.73%
Heart Palpitations (feelings or sensations that your heart is pounding or racing): 8 people, 72.73%
Joint Pain: 8 people, 72.73%

What are the existing conditions these people have? *

Hepatitis C: 8 people, 72.73%
Panic Disorder: 1 person, 9.09%
Neuralgia (pain in one or more nerves): 1 person, 9.09%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 1 person, 9.09%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 9.09%
Complex Regional Pain Syndrome (long lasting pain condition most often affecting one of the limbs (arms, legs, hands, or feet)): 1 person, 9.09%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 1 person, 9.09%

* Approximation only. Some reports may have incomplete information.

Do you take Norflex and have Sinus disorder?

- Check whether Sinus disorder 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 Norflex:

Norflex (1,951 reports)

Sinus disorder treatments and more:

Sinus disorder (30,270 reports)

Browse all side effects of Norflex:

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 Sinus disorder:

Sinus disorder (1,251 drugs)

Browse all the conditions that are associated with Sinus disorder:

Sinus disorder (1,076 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on orphenadrine citrate (the active ingredients of Norflex) and Norflex (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.