Pepcid and Hyperthyroidism - a phase IV clinical study of FDA data

Summary:

Hyperthyroidism is reported as a side effect among people who take Pepcid (famotidine), especially for people who are female, 60+ old, also take Synthroid, and have High blood pressure.

The phase IV clinical study analyzes which people have Hyperthyroidism 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 55,772 Pepcid users. Check the latest studies of Pepcid.

What is Hyperthyroidism?

Hyperthyroidism (over activity of the thyroid gland) is found to be associated with 996 drugs and 1,435 conditions by eHealthMe. Check the latest studies of Hyperthyroidism.

On May, 02, 2026

54,527 people reported to have side effects when taking Pepcid.
Among them, 37 people (0.07%) have Hyperthyroidism.

Among these 37 people:

What is the gender of people who have Hyperthyroidism when taking Pepcid? *

female: 72.22 %
male: 27.78 %

What is the age of people who have Hyperthyroidism when taking Pepcid? *

What are other drugs people take besides Pepcid? *

What are other side effects people have besides Hyperthyroidism? *

Dyspnea (difficult or laboured breathing): 13 people, 35.14%
Fatigue (feeling of tiredness): 10 people, 27.03%
Hypotension (abnormally low blood pressure): 9 people, 24.32%
Heart Palpitations (feelings or sensations that your heart is pounding or racing): 8 people, 21.62%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 8 people, 21.62%
Diarrhea: 7 people, 18.92%
Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 7 people, 18.92%
Nervousness: 6 people, 16.22%
Joint Pain: 6 people, 16.22%
Skin - Clammy: 6 people, 16.22%

What are the existing conditions these people have? *

Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 5 people, 13.51%
High Blood Pressure: 5 people, 13.51%
Osteoporosis (bones weak and more likely to break): 4 people, 10.81%
Enlarged Prostate: 4 people, 10.81%
Stress And Anxiety: 3 people, 8.11%
Chronic Myeloid Leukaemia (long lasting type of cancer that starts in the blood-forming cells of the bone marrow and invades the blood): 3 people, 8.11%
Multiple Myeloma (cancer of the plasma cells): 3 people, 8.11%
Metastatic Malignant Melanoma (spreadable cancer tumour of melanine): 3 people, 8.11%
Hypertonic Bladder (bladder-storage function that causes a sudden urge to urinate): 2 people, 5.41%
Arthritis (form of joint disorder that involves inflammation of one or more joints): 2 people, 5.41%

* Approximation only. Some reports may have incomplete information.

Do you take Pepcid and have Hyperthyroidism?

- Check whether Hyperthyroidism 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:

Pepcid (55,772 reports)

Hyperthyroidism treatments and more:

Hyperthyroidism (26,832 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

Browse all the drugs that are associated with Hyperthyroidism:

Hyperthyroidism (996 drugs)

Browse all the conditions that are associated with Hyperthyroidism:

Hyperthyroidism (1,435 conditions)

Related publications that referenced our studies

Dulani S, Dulani R, Lele S, Diagavane S, Anjankar S, Jaiswal N, Subramaniam PS, Juneja R, "Chronic Subdural Haematoma in a Case of Hyperthyroidism Presenting with Papilledema", Chinese Medicine, 2012 Dec .
Dulani S, Dulani R, Lele S, Diagavane S, Anjankar S, Jaiswal N, Subramaniam PS, Juneja R, "Chronic Subdural Haematoma in a Case of Hyperthyroidism Presenting with Papilledema", Chinese Medicine, 2012 Dec .

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.