Zafirlukast and Constipation - a phase IV clinical study of FDA data

Summary:

Constipation is reported as a side effect among people who take Zafirlukast (zafirlukast), especially for people who are female, 60+ old, also take Ondansetron, and have Colon cancer.

The phase IV clinical study analyzes which people have Constipation when taking Zafirlukast. It is created by eHealthMe based on reports of 1,076 people who have side effects when taking Zafirlukast from the FDA, and is updated regularly.

What is Zafirlukast?

Zafirlukast has active ingredients of zafirlukast. It is often used in asthma. eHealthMe is studying from 1,091 Zafirlukast users. Check the latest studies of Zafirlukast.

What is Constipation?

Constipation is found to be associated with 3,004 drugs and 4,611 conditions by eHealthMe. Check the latest studies of Constipation.

On Jul, 14, 2026

1,076 people reported to have side effects when taking Zafirlukast.
Among them, 13 people (1.21%) have Constipation.

Among these 13 people:

What is the gender of people who have Constipation when taking Zafirlukast? *

female: 84.62 %
male: 15.38 %

What is the age of people who have Constipation when taking Zafirlukast? *

What are other drugs people take besides Zafirlukast? *

What are other side effects people have besides Constipation? *

Vision Blurred: 4 people, 30.77%
Abdominal Pain: 4 people, 30.77%
Nausea (feeling of having an urge to vomit): 3 people, 23.08%
Uterine Fibroids (benign growths of the muscle inside the uterus): 3 people, 23.08%
Nervousness: 3 people, 23.08%
Dry Skin: 3 people, 23.08%
Haemorrhoids (a swollen vein or group of veins in the region of the anus): 3 people, 23.08%
Liver Function Tests Nos Abnormal: 3 people, 23.08%
Diarrhea: 3 people, 23.08%
Joint Pain: 3 people, 23.08%

What are the existing conditions these people have? *

Colon Cancer: 2 people, 15.38%
Visual Impairment: 1 person, 7.69%
Stress And Anxiety: 1 person, 7.69%
Nausea And Vomiting: 1 person, 7.69%
Nausea (feeling of having an urge to vomit): 1 person, 7.69%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 1 person, 7.69%
Multiple Myeloma (cancer of the plasma cells): 1 person, 7.69%
Irritable Bowel Syndrome: 1 person, 7.69%
Endometrial Cancer: 1 person, 7.69%
Drowsiness: 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Zafirlukast and have Constipation?

- Check whether Constipation 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 Zafirlukast:

Zafirlukast (1,091 reports)

Constipation treatments and more:

Constipation (337,879 reports)

Browse all side effects of Zafirlukast:

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 Constipation:

Constipation (3,004 drugs)

Browse all the conditions that are associated with Constipation:

Constipation (4,611 conditions)

How the study uses the data?

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