Cefazolin and Influenza like illness - a phase IV clinical study of FDA data

Summary:

Influenza like illness is reported as a side effect among people who take Cefazolin (cefazolin sodium), especially for people who are female, 50-59 old, have been taking the drug for < 1 month also take Percocet, and have Pre-eclampsia.

The phase IV clinical study analyzes which people have Influenza like illness when taking Cefazolin. It is created by eHealthMe based on reports of 15,127 people who have side effects when taking Cefazolin from the FDA, and is updated regularly.

What is Cefazolin?

Cefazolin has active ingredients of cefazolin sodium. It is often used in infection. eHealthMe is studying from 15,157 Cefazolin users. Check the latest studies of Cefazolin.

What is Influenza like illness?

Influenza like illness is found to be associated with 1,893 drugs and 1,870 conditions by eHealthMe. Check the latest studies of Influenza like illness.

On Jul, 13, 2026

15,127 people reported to have side effects when taking Cefazolin.
Among them, 27 people (0.18%) have Influenza like illness.

Could Cefazolin cause Influenza like illness?

Among these 27 people:

How long have people been on Cefazolin when they have Influenza like illness? *

What is the gender of people who have Influenza like illness when taking Cefazolin? *

female: 57.69 %
male: 42.31 %

What is the age of people who have Influenza like illness when taking Cefazolin? *

What are other drugs people take besides Cefazolin? *

What are other side effects people have besides Influenza like illness? *

Dyspnea (difficult or laboured breathing): 14 people, 51.85%
Joint Pain: 14 people, 51.85%
Fatigue (feeling of tiredness): 13 people, 48.15%
Gait Disturbance: 12 people, 44.44%
Nausea (feeling of having an urge to vomit): 11 people, 40.74%
Weakness: 10 people, 37.04%
Back Pain: 8 people, 29.63%
Muscle Spasms (muscle contraction): 8 people, 29.63%
Pain In Extremity: 8 people, 29.63%
Nausea And Vomiting: 8 people, 29.63%

What are the existing conditions these people have? *

Urinary Tract Infection: 5 people, 18.52%
Stress And Anxiety: 5 people, 18.52%
Pre-Eclampsia (high blood pressure and significant amounts of protein in the urine of a pregnant woman): 5 people, 18.52%
Idiopathic Thrombocytopenic Purpura (bleeding disorder in which the immune system destroys platelets, which are necessary for normal blood clotting): 4 people, 14.81%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 4 people, 14.81%
Haematochezia (passage of stools containing blood): 4 people, 14.81%
High Blood Pressure: 4 people, 14.81%
Gastritis (inflammation of stomach): 4 people, 14.81%
Constipation: 4 people, 14.81%
Nausea And Vomiting: 3 people, 11.11%

* Approximation only. Some reports may have incomplete information.

Do you take Cefazolin and have Influenza like illness?

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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Cefazolin:

Cefazolin (15,157 reports)

Browse all side effects of Cefazolin:

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 Influenza like illness:

Influenza like illness (1,893 drugs)

Browse all the conditions that are associated with Influenza like illness:

Influenza like illness (1,870 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on cefazolin sodium (the active ingredients of Cefazolin) and Cefazolin (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.