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

Summary:

Intestinal obstruction is reported as a side effect among people who take Pepcid ac (famotidine), especially for people who are female, 60+ old, also take Zofran, and have Primary immunodeficiency syndrome.

The phase IV clinical study analyzes which people have Intestinal obstruction when taking Pepcid ac. It is created by eHealthMe based on reports of 9,299 people who have side effects when taking Pepcid ac from the FDA, and is updated regularly.

What is Pepcid ac?

Pepcid ac has active ingredients of famotidine. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 9,573 Pepcid ac users. Check the latest studies of Pepcid ac.

What is Intestinal obstruction?

Intestinal obstruction is found to be associated with 1,887 drugs and 2,613 conditions by eHealthMe. Check the latest studies of Intestinal obstruction.

On Jul, 10, 2026

9,299 people reported to have side effects when taking Pepcid ac.
Among them, 15 people (0.16%) have Intestinal obstruction.

Could Pepcid ac cause Intestinal obstruction?

Among these 15 people:

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

female: 85.71 %
male: 14.29 %

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

What are other drugs people take besides Pepcid ac? *

Zofran: 8 people, 53.33%
Zyrtec: 5 people, 33.33%
Plaquenil: 5 people, 33.33%
Xanax: 5 people, 33.33%
Lasix: 5 people, 33.33%
Epinephrine: 4 people, 26.67%
Mupirocin: 4 people, 26.67%
Miralax: 4 people, 26.67%
Ipratropium Bromide: 4 people, 26.67%
Hydroxyzine Hydrochloride: 4 people, 26.67%

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

Nausea (feeling of having an urge to vomit): 6 people, 40.00%
Foot Fracture: 4 people, 26.67%
Asthma: 4 people, 26.67%
Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 4 people, 26.67%
Lung Disorder (lung disease): 4 people, 26.67%
Sinusitis (inflammation of sinus): 3 people, 20.00%
Fatigue (feeling of tiredness): 3 people, 20.00%
Abdominal Discomfort: 2 people, 13.33%
Malaise (a feeling of general discomfort or uneasiness): 2 people, 13.33%
Gastrointestinal Infection (infection of stomach and intestine): 2 people, 13.33%

What are the existing conditions these people have? *

Immunodeficiency Common Variable: 4 people, 26.67%
Primary Immunodeficiency Syndrome: 4 people, 26.67%
High Blood Cholesterol: 3 people, 20.00%
Abdominal Discomfort: 3 people, 20.00%
Osteoporosis (bones weak and more likely to break): 2 people, 13.33%
Nausea (feeling of having an urge to vomit): 2 people, 13.33%
Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 2 people, 13.33%
Colon Cancer: 2 people, 13.33%
Back Disorder: 2 people, 13.33%
Urinary Tract Infection: 2 people, 13.33%

* Approximation only. Some reports may have incomplete information.

Do you take Pepcid ac 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 Pepcid ac:

Pepcid ac (9,573 reports)

Browse all side effects of Pepcid ac:

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 (1,887 drugs)

Browse all the conditions that are associated with Intestinal obstruction:

Intestinal obstruction (2,613 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on famotidine (the active ingredients of Pepcid ac) and Pepcid ac (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.