Cefaclor and Sinusitis - a phase IV clinical study of FDA data

Summary:

Sinusitis is reported as a side effect among people who take Cefaclor (cefaclor), especially for people who are male, 60+ old, also take Folic Acid, and have Multiple myeloma.

The phase IV clinical study analyzes which people have Sinusitis when taking Cefaclor. It is created by eHealthMe based on reports of 2,472 people who have side effects when taking Cefaclor from the FDA, and is updated regularly.

What is Cefaclor?

Cefaclor has active ingredients of cefaclor. eHealthMe is studying from 2,512 Cefaclor users. Check the latest studies of Cefaclor.

What is Sinusitis?

Sinusitis (inflammation of sinus) is found to be associated with 2,399 drugs and 2,727 conditions by eHealthMe. Check the latest studies of Sinusitis.

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, 26, 2026

2,472 people reported to have side effects when taking Cefaclor.
Among them, 36 people (1.46%) have Sinusitis.

Among these 36 people:

What is the gender of people who have Sinusitis when taking Cefaclor? *

female: 34.29 %
male: 65.71 %

What is the age of people who have Sinusitis when taking Cefaclor? *

What are other drugs people take besides Cefaclor? *

What are other side effects people have besides Sinusitis? *

Chest Pain: 23 people, 63.89%
Cellulitis (infection under the skin): 22 people, 61.11%
Pain: 21 people, 58.33%
Headache (pain in head): 21 people, 58.33%
Stress And Anxiety: 20 people, 55.56%
Haemorrhoids (a swollen vein or group of veins in the region of the anus): 20 people, 55.56%
Dyspnea (difficult or laboured breathing): 20 people, 55.56%
Spinal Osteoarthritis (joint cartilage loss in spine): 20 people, 55.56%
Gallstones (stone formation by bile component): 19 people, 52.78%
Cardiac Failure Congestive: 19 people, 52.78%

What are the existing conditions these people have? *

Trismus (reduced opening of the jaws): 16 people, 44.44%
Multiple Myeloma (cancer of the plasma cells): 16 people, 44.44%
Colon Cancer: 2 people, 5.56%
High Blood Pressure: 2 people, 5.56%
Rectal Cancer (cancer of rectum): 2 people, 5.56%
Psoriasis (immune-mediated disease that affects the skin): 1 person, 2.78%
Primary Immunodeficiency Syndrome: 1 person, 2.78%
Immunodeficiency Common Variable: 1 person, 2.78%
Hyperlipidaemia (presence of excess lipids in the blood): 1 person, 2.78%
Sleep Apnea Syndrome: 1 person, 2.78%

* Approximation only. Some reports may have incomplete information.

Do you take Cefaclor and have Sinusitis?

- Check whether Sinusitis 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 Cefaclor:

Cefaclor (2,512 reports)

Sinusitis treatments and more:

Sinusitis (153,485 reports)

Browse all side effects of Cefaclor:

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 Sinusitis:

Sinusitis (2,399 drugs)

Browse all the conditions that are associated with Sinusitis:

Sinusitis (2,727 conditions)

How the study uses the data?

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