Doxycycline and Tenosynovitis stenosans - a phase IV clinical study of FDA data

Summary:

Tenosynovitis stenosans is reported as a side effect among people who take Doxycycline (doxycycline hyclate), especially for people who are female, 50-59 old, also take Prednisone, and have Inflammation.

The phase IV clinical study analyzes which people have Tenosynovitis stenosans when taking Doxycycline. It is created by eHealthMe based on reports of 57,458 people who have side effects when taking Doxycycline from the FDA, and is updated regularly.

What is Doxycycline?

Doxycycline has active ingredients of doxycycline hyclate. It is often used in acne. eHealthMe is studying from 60,868 Doxycycline users. Check the latest studies of Doxycycline.

What is Tenosynovitis stenosans?

Tenosynovitis stenosans (a common disorder characterized by catching, snapping or locking of the involved finger flexor tendon, associated with dysfunction and pain) is found to be associated with 248 drugs and 307 conditions by eHealthMe. Check the latest studies of Tenosynovitis stenosans.

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 Aug, 27, 2026

57,458 people reported to have side effects when taking Doxycycline.
Among them, 18 people (0.03%) have Tenosynovitis stenosans.

Could Doxycycline cause Tenosynovitis stenosans?

Among these 18 people:

What is the gender of people who have Tenosynovitis stenosans when taking Doxycycline? *

female: 75 %
male: 25 %

What is the age of people who have Tenosynovitis stenosans when taking Doxycycline? *

What are other drugs people take besides Doxycycline? *

Pantoprazole: 11 people, 61.11%
Prednisone: 11 people, 61.11%
Folic Acid: 10 people, 55.56%
Lyrica: 10 people, 55.56%
Pantoprazole Sodium: 10 people, 55.56%
Imuran: 9 people, 50.00%
Ranitidine: 9 people, 50.00%
Humira: 9 people, 50.00%
Hydrocortisone Sodium Succinate: 9 people, 50.00%
Methylprednisolone Sodium Succinate: 9 people, 50.00%

What are other side effects people have besides Tenosynovitis stenosans? *

Pain: 13 people, 72.22%
Joint Effusion (presence of extra fluid in joint covering): 13 people, 72.22%
Atelectasis (partial or complete collapse of the lung): 11 people, 61.11%
Dyspnea (difficult or laboured breathing): 10 people, 55.56%
Back Pain: 10 people, 55.56%
Fatigue (feeling of tiredness): 10 people, 55.56%
Eye Irritation: 9 people, 50.00%
Pleuritic Pain: 9 people, 50.00%
Photophobia (extreme sensitivity to light): 9 people, 50.00%
Eye Pain: 9 people, 50.00%

What are the existing conditions these people have? *

Inflammation: 13 people, 72.22%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 9 people, 50.00%
Fibromyalgia (a long-term condition which causes pain all over the body): 9 people, 50.00%
Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 8 people, 44.44%
Bursitis (inflammation of a bursa, typically one in the knee, elbow, or shoulder): 8 people, 44.44%
Back Pain: 8 people, 44.44%
Pain: 7 people, 38.89%
Depression: 6 people, 33.33%
Urinary Tract Infection: 5 people, 27.78%
Sleep Disorder: 5 people, 27.78%

* Approximation only. Some reports may have incomplete information.

Do you take Doxycycline and have Tenosynovitis stenosans?

- Check whether Tenosynovitis stenosans 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 Doxycycline:

Doxycycline (60,868 reports)

Browse all side effects of Doxycycline:

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 Tenosynovitis stenosans:

Tenosynovitis stenosans (248 drugs)

Browse all the conditions that are associated with Tenosynovitis stenosans:

Tenosynovitis stenosans (307 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on doxycycline hyclate (the active ingredients of Doxycycline) and Doxycycline (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.