Cinnamon and Tendonitis - a phase IV clinical study of FDA data

Summary:

Tendonitis is reported as a side effect among people who take Cinnamon (cassia cinnamon), especially for people who are female, 60+ old, also take Vitamin D3, and have Narcolepsy.

The phase IV clinical study analyzes which people have Tendonitis when taking Cinnamon. It is created by eHealthMe based on reports of 3,898 people who have side effects when taking Cinnamon from the FDA, and is updated regularly.

What is Cinnamon?

Cinnamon has active ingredients of cassia cinnamon. It is often used in diabetes. eHealthMe is studying from 4,110 Cinnamon users. Check the latest studies of Cinnamon.

What is Tendonitis?

Tendonitis (a condition that causes pain and swelling of tendons) is found to be associated with 1,097 drugs and 1,272 conditions by eHealthMe. Check the latest studies of Tendonitis.

On Jul, 16, 2026

3,898 people reported to have side effects when taking Cinnamon.
Among them, 18 people (0.46%) have Tendonitis.

Among these 18 people:

What is the gender of people who have Tendonitis when taking Cinnamon? *

female: 88.89 %
male: 11.11 %

What is the age of people who have Tendonitis when taking Cinnamon? *

What are other drugs people take besides Cinnamon? *

What are other side effects people have besides Tendonitis? *

Gait Disturbance: 6 people, 33.33%
Hypersensitivity: 6 people, 33.33%
Joint Pain: 5 people, 27.78%
Osteoarthritis (a joint disease caused by cartilage loss in a joint): 5 people, 27.78%
Weight Decreased: 4 people, 22.22%
Dizziness: 4 people, 22.22%
Pain: 4 people, 22.22%
Nausea (feeling of having an urge to vomit): 4 people, 22.22%
Muscle Spasms (muscle contraction): 4 people, 22.22%
Arthritis (form of joint disorder that involves inflammation of one or more joints): 4 people, 22.22%

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 5 people, 27.78%
Pain: 4 people, 22.22%
Endometrial Cancer: 3 people, 16.67%
Epilepsy (common and diverse set of chronic neurological disorders characterized by seizures): 3 people, 16.67%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 3 people, 16.67%
Hypersensitivity: 3 people, 16.67%
Urinary Tract Infection: 2 people, 11.11%
Thrombosis (formation of a blood clot inside a blood vessel): 2 people, 11.11%
Balance Disorder: 2 people, 11.11%
Cardiac Disorder: 2 people, 11.11%

* Approximation only. Some reports may have incomplete information.

Do you take Cinnamon and have Tendonitis?

- Check whether Tendonitis 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 Cinnamon:

Cinnamon (4,110 reports)

Tendonitis treatments and more:

Tendonitis (23,484 reports)

Browse all side effects of Cinnamon:

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 Tendonitis:

Tendonitis (1,097 drugs)

Browse all the conditions that are associated with Tendonitis:

Tendonitis (1,272 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on cassia cinnamon (the active ingredients of Cinnamon) and Cinnamon (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.