Formoterol fumarate and White blood cell count increased - a phase IV clinical study of FDA data

Summary:

White blood cell count increased is reported as a side effect among people who take Formoterol fumarate (formoterol fumarate), especially for people who are female, 60+ old, also take Singulair, and have High blood pressure.

The phase IV clinical study analyzes which people have White blood cell count increased when taking Formoterol fumarate. It is created by eHealthMe based on reports of 4,948 people who have side effects when taking Formoterol fumarate from the FDA, and is updated regularly.

What is Formoterol fumarate?

Formoterol fumarate has active ingredients of formoterol fumarate. eHealthMe is studying from 4,968 Formoterol fumarate users. Check the latest studies of Formoterol fumarate.

What is White blood cell count increased?

White blood cell count increased is found to be associated with 1,789 drugs and 2,649 conditions by eHealthMe. Check the latest studies of White blood cell count increased.

On Jul, 19, 2026

4,948 people reported to have side effects when taking Formoterol fumarate.
Among them, 20 people (0.4%) have White blood cell count increased.

Could Formoterol fumarate cause White blood cell count increased?

Among these 20 people:

What is the gender of people who have White blood cell count increased when taking Formoterol fumarate? *

female: 55 %
male: 45 %

What is the age of people who have White blood cell count increased when taking Formoterol fumarate? *

What are other drugs people take besides Formoterol fumarate? *

What are other side effects people have besides White blood cell count increased? *

Chest Pain: 5 people, 25.00%
Cough: 5 people, 25.00%
Pulmonary Eosinophilia (increase in the number of eosinophiles in the blood causeing lung infection): 4 people, 20.00%
Pneumonia: 4 people, 20.00%
Hypotension (abnormally low blood pressure): 4 people, 20.00%
Stress And Anxiety: 4 people, 20.00%
Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 4 people, 20.00%
Constipation: 4 people, 20.00%
Malaise (a feeling of general discomfort or uneasiness): 3 people, 15.00%
Neutrophil Count Increased (excess than normal number of neutrophil a type of blood cell): 3 people, 15.00%

What are the existing conditions these people have? *

High Blood Pressure: 3 people, 15.00%
Pleural Mesothelioma Malignant Advanced (cancer of the pleura, or the membrane that lines the lungs-advanced): 2 people, 10.00%
Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 2 people, 10.00%
Vocal Cord Neoplasm (vocal cord tumour): 1 person, 5.00%
Chronic Respiratory Failure: 1 person, 5.00%
Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 1 person, 5.00%
Back Disorder: 1 person, 5.00%
Back Pain: 1 person, 5.00%
Bipolar Disorder (mood disorder): 1 person, 5.00%
Bipolar I Disorder (mood disorder that is characterized by at least one manic or mixed episode): 1 person, 5.00%

* Approximation only. Some reports may have incomplete information.

Do you take Formoterol fumarate and have White blood cell count increased?

- Check whether White blood cell count increased is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Formoterol fumarate:

Formoterol fumarate (4,968 reports)

Browse all side effects of Formoterol fumarate:

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Browse all the drugs that are associated with White blood cell count increased:

White blood cell count increased (1,789 drugs)

Browse all the conditions that are associated with White blood cell count increased:

White blood cell count increased (2,649 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on formoterol fumarate (the active ingredients of Formoterol fumarate) and Formoterol fumarate (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.