Metronidazole and Lupus-like syndrome - a phase IV clinical study of FDA data

Summary:

Lupus-like syndrome is reported as a side effect among people who take Metronidazole (metronidazole), especially for people who are female, 30-39 old, have been taking the drug for < 1 month also take Prednisone, and have Crohn's disease.

The phase IV clinical study analyzes which people have Lupus-like syndrome when taking Metronidazole. It is created by eHealthMe based on reports of 58,146 people who have side effects when taking Metronidazole from the FDA, and is updated regularly.

What is Metronidazole?

Metronidazole has active ingredients of metronidazole. It is often used in vaginitis bacterial. eHealthMe is studying from 59,578 Metronidazole users. Check the latest studies of Metronidazole.

What is Lupus-like syndrome?

Lupus-like syndrome (a disease symptom matches with lupus an immune disease) is found to be associated with 405 drugs and 591 conditions by eHealthMe. Check the latest studies of Lupus-like syndrome.

On Jul, 11, 2026

58,146 people reported to have side effects when taking Metronidazole.
Among them, 22 people (0.04%) have Lupus-like syndrome.

Could Metronidazole cause Lupus-like syndrome?

Among these 22 people:

How long have people been on Metronidazole when they have Lupus-like syndrome? *

What is the gender of people who have Lupus-like syndrome when taking Metronidazole? *

female: 90.91 %
male: 9.09 %

What is the age of people who have Lupus-like syndrome when taking Metronidazole? *

What are other drugs people take besides Metronidazole? *

Prednisone: 6 people, 27.27%
Humira: 5 people, 22.73%
Hydrocortisone: 4 people, 18.18%
Mesalamine: 4 people, 18.18%
Ciprofloxacin Hydrochloride: 3 people, 13.64%
Purinethol: 3 people, 13.64%
Stelara: 3 people, 13.64%
Ciprofloxacin: 3 people, 13.64%
Tacrolimus: 3 people, 13.64%
Methotrexate: 3 people, 13.64%

What are other side effects people have besides Lupus-like syndrome? *

Joint Pain: 8 people, 36.36%
Rashes (redness): 6 people, 27.27%
Fatigue (feeling of tiredness): 6 people, 27.27%
Nausea (feeling of having an urge to vomit): 5 people, 22.73%
Pain: 5 people, 22.73%
Drug Ineffective: 5 people, 22.73%
Peripheral Swelling: 4 people, 18.18%
Intestinal Obstruction: 4 people, 18.18%
Hot Flush (sudden feelings of heat): 4 people, 18.18%
Headache (pain in head): 4 people, 18.18%

What are the existing conditions these people have? *

Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 8 people, 36.36%
Systemic Lupus Erythematosus (an autoimmune disease, which means the body's immune system mistakenly, attacks healthy tissue): 3 people, 13.64%
Metastatic Cutaneous Crohn's Disease (spreadable cancer related to bowel disease): 3 people, 13.64%
Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 2 people, 9.09%
Pyogenic Liver Abscess (liver abscess caused by bacteria): 2 people, 9.09%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 9.09%
Relapsing-Remitting Multiple Sclerosis (reoccurrence of an inflammatory disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged): 1 person, 4.55%
Pelvic Inflammatory Disease: 1 person, 4.55%
Lambert-Eaton Syndrome (this means your immune system mistakenly targets healthy cells and tissues in the body): 1 person, 4.55%
Joint Pain: 1 person, 4.55%

* Approximation only. Some reports may have incomplete information.

Do you take Metronidazole and have Lupus-like syndrome?

- Check whether Lupus-like syndrome 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 Metronidazole:

Metronidazole (59,578 reports)

Browse all side effects of Metronidazole:

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 Lupus-like syndrome:

Lupus-like syndrome (405 drugs)

Browse all the conditions that are associated with Lupus-like syndrome:

Lupus-like syndrome (591 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on metronidazole (the active ingredients of Metronidazole) and Metronidazole (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.