Patanol and Intestinal obstruction - a phase IV clinical study of FDA data

Summary:

Intestinal obstruction is reported as a side effect among people who take Patanol (olopatadine hydrochloride), especially for people who are female, 60+ old, also take Nexium, and have Pain.

The phase IV clinical study analyzes which people have Intestinal obstruction when taking Patanol. It is created by eHealthMe based on reports of 5,294 people who have side effects when taking Patanol from the FDA, and is updated regularly.

What is Patanol?

Patanol has active ingredients of olopatadine hydrochloride. It is often used in allergies. eHealthMe is studying from 5,339 Patanol users. Check the latest studies of Patanol.

What is Intestinal obstruction?

Intestinal obstruction is found to be associated with 1,884 drugs and 2,619 conditions by eHealthMe. Check the latest studies of Intestinal obstruction.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 06, 2026

5,294 people reported to have side effects when taking Patanol.
Among them, 16 people (0.3%) have Intestinal obstruction.

Could Patanol cause Intestinal obstruction?

Among these 16 people:

What is the gender of people who have Intestinal obstruction when taking Patanol? *

female: 64.29 %
male: 35.71 %

What is the age of people who have Intestinal obstruction when taking Patanol? *

What are other drugs people take besides Patanol? *

What are other side effects people have besides Intestinal obstruction? *

Weakness: 7 people, 43.75%
Joint Pain: 6 people, 37.50%
Abdominal Pain: 6 people, 37.50%
Diarrhea: 6 people, 37.50%
Dehydration (dryness resulting from the removal of water): 6 people, 37.50%
Nausea (feeling of having an urge to vomit): 6 people, 37.50%
Pain: 6 people, 37.50%
Gastritis (inflammation of stomach): 5 people, 31.25%
Anaemia (lack of blood): 5 people, 31.25%
Constipation: 5 people, 31.25%

What are the existing conditions these people have? *

Pain: 4 people, 25.00%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 3 people, 18.75%
Arthritis (form of joint disorder that involves inflammation of one or more joints): 3 people, 18.75%
Osteoporosis (bones weak and more likely to break): 2 people, 12.50%
Conjunctivitis Allergic (inflammation of the conjunctiva due to allergy): 2 people, 12.50%
Hiatal Hernia (hernia resulting from the protrusion of part of the stomach through the diaphragm): 1 person, 6.25%
Belching (release of gas from the digestive tract): 1 person, 6.25%
Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 1 person, 6.25%
Dry Eyes (lack of adequate tears): 1 person, 6.25%
Glaucoma (increased fluid pressure in the eye with vision loss): 1 person, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Patanol and have Intestinal obstruction?

- Check whether Intestinal obstruction 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 Patanol:

Patanol (5,339 reports)

Browse all side effects of Patanol:

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 Intestinal obstruction:

Intestinal obstruction (1,884 drugs)

Browse all the conditions that are associated with Intestinal obstruction:

Intestinal obstruction (2,619 conditions)

How the study uses the data?

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