Pataday and Flatulence - a phase IV clinical study of FDA data

Summary:

Flatulence is reported as a side effect among people who take Pataday (olopatadine hydrochloride), especially for people who are male, 60+ old, also take Vitamin C, and have Eczema.

The phase IV clinical study analyzes which people have Flatulence when taking Pataday. It is created by eHealthMe based on reports of 8,221 people who have side effects when taking Pataday from the FDA, and is updated regularly.

What is Pataday?

Pataday has active ingredients of olopatadine hydrochloride. It is often used in allergies. eHealthMe is studying from 8,288 Pataday users. Check the latest studies of Pataday.

What is Flatulence?

Flatulence (flatus expelled through the anus) is found to be associated with 1,768 drugs and 1,890 conditions by eHealthMe. Check the latest studies of Flatulence.

On Jun, 18, 2026

8,221 people reported to have side effects when taking Pataday.
Among them, 13 people (0.16%) have Flatulence.

Among these 13 people:

What is the gender of people who have Flatulence when taking Pataday? *

female: 30.77 %
male: 69.23 %

What is the age of people who have Flatulence when taking Pataday? *

What are other drugs people take besides Pataday? *

What are other side effects people have besides Flatulence? *

Diarrhea: 8 people, 61.54%
Eye Disorder: 6 people, 46.15%
Foreign Body Sensation In Eyes (feeling of something in eye): 5 people, 38.46%
Dry Eyes (lack of adequate tears): 5 people, 38.46%
Gastrointestinal Sounds Abnormal: 5 people, 38.46%
Asthma: 5 people, 38.46%
Fatigue (feeling of tiredness): 5 people, 38.46%
Eye Pruritus (eye itching): 5 people, 38.46%
Eye Irritation: 5 people, 38.46%
Eye Discharge: 5 people, 38.46%

What are the existing conditions these people have? *

Eczema (patches of skin become rough and inflamed, with itching and bleeding blisters): 5 people, 38.46%
Dermatitis (inflammation of the skin resulting from direct irritation by an external agent or an allergic reaction to it): 4 people, 30.77%
Migraine (headache): 3 people, 23.08%
Interstitial Lung Disease: 3 people, 23.08%
Idiopathic Pulmonary Fibrosis (chronic lung disease): 3 people, 23.08%
Multiple Myeloma (cancer of the plasma cells): 2 people, 15.38%
Upper Respiratory Tract Infection: 1 person, 7.69%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 7.69%
Breast Cancer Female: 1 person, 7.69%
Cushing's Syndrome (obesity, a rounded face, increased fat): 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Pataday and have Flatulence?

- Check whether Flatulence 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 Pataday:

Pataday (8,288 reports)

Flatulence treatments and more:

Flatulence (70,667 reports)

Browse all side effects of Pataday:

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 Flatulence:

Flatulence (1,768 drugs)

Browse all the conditions that are associated with Flatulence:

Flatulence (1,890 conditions)

How the study uses the data?

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