Pepcid and Weight fluctuation - a phase IV clinical study of FDA data

Summary:

Weight fluctuation is reported as a side effect among people who take Pepcid (famotidine), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Tylenol, and have Pain.

The phase IV clinical study analyzes which people have Weight fluctuation when taking Pepcid. It is created by eHealthMe based on reports of 54,527 people who have side effects when taking Pepcid from the FDA, and is updated regularly.

What is Pepcid?

Pepcid has active ingredients of famotidine. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 55,768 Pepcid users. Check the latest studies of Pepcid.

What is Weight fluctuation?

Weight fluctuation is found to be associated with 935 drugs and 985 conditions by eHealthMe. Check the latest studies of Weight fluctuation.

On Dec, 29, 2025

54,527 people reported to have side effects when taking Pepcid.
Among them, 51 people (0.09%) have Weight fluctuation.

Among these 51 people:

* Approximation only. Some reports may have incomplete information.

Do you take Pepcid and have Weight fluctuation?

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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Pepcid:

Pepcid (55,768 reports)

Weight fluctuation treatments and more:

Weight fluctuation (13,380 reports)

How severe was Weight fluctuation and when was it recovered:

Weight fluctuation in Pepcid

Expand to all the drugs that have ingredients of famotidine:

Weight fluctuation and drugs with ingredients of famotidine

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Common Pepcid side effects:

Pepcid side effect: Nausea (feeling of having an urge to vomit) (4,164 reports)
Pepcid side effect: Fatigue (feeling of tiredness) (4,019 reports)

Browse all side effects of Pepcid:

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

Common drugs associated with Weight fluctuation:

Browse all the drugs that are associated with Weight fluctuation:

Weight fluctuation (935 drugs)

Common conditions associated with Weight fluctuation:

Browse all the conditions that are associated with Weight fluctuation:

Weight fluctuation (985 conditions)

Drugs similar to Pepcid and Weight fluctuation :

How the study uses the data?

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