Flavin and Neck pain - a phase IV clinical study of FDA data

Summary:

Neck pain is reported as a side effect among people who take Flavin (riboflavin (vitamin b2)), especially for people who are male, 50-59 old, also take Nicotinamide, and have Hypovitaminosis.

The phase IV clinical study analyzes which people have Neck pain when taking Flavin. It is created by eHealthMe based on reports of 2,778 people who have side effects when taking Flavin from the FDA, and is updated regularly.

What is Flavin?

Flavin has active ingredients of riboflavin (vitamin b2). eHealthMe is studying from 2,870 Flavin users. Check the latest studies of Flavin.

What is Neck pain?

Neck pain is found to be associated with 2,077 drugs and 2,819 conditions by eHealthMe. Check the latest studies of Neck pain.

On Jul, 31, 2026

2,778 people reported to have side effects when taking Flavin.
Among them, 75 people (2.7%) have Neck pain.

Among these 75 people:

What is the gender of people who have Neck pain when taking Flavin? *

female: 43.33 %
male: 56.67 %

What is the age of people who have Neck pain when taking Flavin? *

What are other drugs people take besides Flavin? *

Nicotinamide: 51 people, 68.00%
Folic Acid: 49 people, 65.33%
Calcium Carbonate: 46 people, 61.33%
Ergocalciferol: 45 people, 60.00%
Calcium: 37 people, 49.33%
Thiamine Hydrochloride: 36 people, 48.00%
Zinc Sulfate: 35 people, 46.67%
Potassium Chloride: 35 people, 46.67%
Pyridoxine Hydrochloride: 35 people, 46.67%
Phenylbutazone: 35 people, 46.67%

What are other side effects people have besides Neck pain? *

Abdominal Distension: 41 people, 54.67%
Indigestion: 41 people, 54.67%
Hypersensitivity: 40 people, 53.33%
Vitamin B12 Deficiency: 35 people, 46.67%
Oropharyngeal Discomfort (pain or irritation of oropharynx): 35 people, 46.67%
Regurgitation (expulsion of material): 35 people, 46.67%
Barrett's Oesophagus (barrett's oesophagus is a disorder in which the lining of the oesophagus (the tube that carries food from the throat to the stomach) is damaged by stomach acid and changed to a lining similar to that of the stomach): 35 people, 46.67%
Belching (release of gas from the digestive tract): 35 people, 46.67%
Pain In Extremity: 22 people, 29.33%
Nausea (feeling of having an urge to vomit): 19 people, 25.33%

What are the existing conditions these people have? *

Hypovitaminosis (any of several diseases caused by deficiency of one or more vitamins): 35 people, 46.67%
Migraine (headache): 29 people, 38.67%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 14 people, 18.67%
Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 12 people, 16.00%
Psoriasis (immune-mediated disease that affects the skin): 8 people, 10.67%
Asthma: 7 people, 9.33%
Mood Swings (an extreme or rapid change in mood): 6 people, 8.00%
High Blood Pressure: 3 people, 4.00%
Headache (pain in head): 3 people, 4.00%
Pain: 3 people, 4.00%

* Approximation only. Some reports may have incomplete information.

Do you take Flavin and have Neck pain?

- Check whether Neck pain 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 Flavin:

Flavin (2,870 reports)

Neck pain treatments and more:

Neck pain (83,324 reports)

Browse all side effects of Flavin:

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 Neck pain:

Neck pain (2,077 drugs)

Browse all the conditions that are associated with Neck pain:

Neck pain (2,819 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on riboflavin (vitamin b2) (the active ingredients of Flavin) and Flavin (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.