Zyrtec and Abdominal mass - a phase IV clinical study of FDA data

Summary:

Abdominal mass is reported as a side effect among people who take Zyrtec (cetirizine hydrochloride), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Fish Oil, and have Hypersensitivity.

The phase IV clinical study analyzes which people have Abdominal mass when taking Zyrtec. It is created by eHealthMe based on reports of 109,528 people who have side effects when taking Zyrtec from the FDA, and is updated regularly.

What is Zyrtec?

Zyrtec has active ingredients of cetirizine hydrochloride. It is often used in allergies. eHealthMe is studying from 114,619 Zyrtec users. Check the latest studies of Zyrtec.

What is Abdominal mass?

Abdominal mass (localized enlargement or swelling in the human abdomen) is found to be associated with 456 drugs and 1,089 conditions by eHealthMe. Check the latest studies of Abdominal mass.

On Jul, 08, 2026

109,528 people reported to have side effects when taking Zyrtec.
Among them, 47 people (0.04%) have Abdominal mass.

Among these 47 people:

How long have people been on Zyrtec when they have Abdominal mass? *

What is the gender of people who have Abdominal mass when taking Zyrtec? *

female: 78.72 %
male: 21.28 %

What is the age of people who have Abdominal mass when taking Zyrtec? *

What are other drugs people take besides Zyrtec? *

What are other side effects people have besides Abdominal mass? *

Pain: 25 people, 53.19%
Back Pain: 19 people, 40.43%
Joint Pain: 18 people, 38.30%
Abdominal Pain: 17 people, 36.17%
Spinal Osteoarthritis (joint cartilage loss in spine): 16 people, 34.04%
Bone Pain: 16 people, 34.04%
Pain In Extremity: 15 people, 31.91%
Headache (pain in head): 14 people, 29.79%
Insomnia (sleeplessness): 14 people, 29.79%
Dyspnea (difficult or laboured breathing): 14 people, 29.79%

What are the existing conditions these people have? *

Hypersensitivity: 9 people, 19.15%
Endometriosis (appearance of endometrial tissue outside the uterus and causing pelvic pain): 8 people, 17.02%
Immunodeficiency: 8 people, 17.02%
Asthma: 7 people, 14.89%
Vaginal Bleeding: 6 people, 12.77%
Heavy Or Prolong Menstrual Bleeding: 6 people, 12.77%
High Blood Pressure: 6 people, 12.77%
Cyst (a closed sac): 6 people, 12.77%
Dysmenorrhea (painful menstruation): 6 people, 12.77%
Dyspnea (difficult or laboured breathing): 6 people, 12.77%

* Approximation only. Some reports may have incomplete information.

Do you take Zyrtec and have Abdominal mass?

- Check whether Abdominal mass 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 Zyrtec:

Zyrtec (114,619 reports)

Abdominal mass treatments and more:

Abdominal mass (3,416 reports)

Browse all side effects of Zyrtec:

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 Abdominal mass:

Abdominal mass (456 drugs)

Browse all the conditions that are associated with Abdominal mass:

Abdominal mass (1,089 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on cetirizine hydrochloride (the active ingredients of Zyrtec) and Zyrtec (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.