Aciphex and Under active thyroid - a phase IV clinical study of FDA data

Summary:

Under active thyroid is reported as a side effect among people who take Aciphex (rabeprazole sodium), especially for people who are female, 60+ old, have been taking the drug for 2 - 5 years also take Synthroid, and have Osteoporosis.

The phase IV clinical study analyzes which people have Under active thyroid when taking Aciphex. It is created by eHealthMe based on reports of 24,594 people who have side effects when taking Aciphex from the FDA, and is updated regularly.

What is Aciphex?

Aciphex has active ingredients of rabeprazole sodium. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 25,301 Aciphex users. Check the latest studies of Aciphex.

What is Under active thyroid?

Under active thyroid is found to be associated with 2,751 drugs and 2,634 conditions by eHealthMe. Check the latest studies of Under active thyroid.

On Apr, 29, 2026

24,594 people reported to have side effects when taking Aciphex.
Among them, 142 people (0.58%) have Under active thyroid.

Could Aciphex cause Under active thyroid?

Among these 142 people:

How long have people been on Aciphex when they have Under active thyroid? *

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What is the gender of people who have Under active thyroid when taking Aciphex? *

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* Approximation only. Some reports may have incomplete information.

Do you take Aciphex and have Under active thyroid?

- Check whether Under active thyroid 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 Aciphex:

Aciphex (25,301 reports)

Under active thyroid treatments and more:

Under active thyroid (168,056 reports)

How severe was Under active thyroid and when was it recovered:

Under active thyroid in Aciphex

Expand to all the drugs that have ingredients of rabeprazole sodium:

Under active thyroid and drugs with ingredients of rabeprazole sodium (253 reports)

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+

Browse all side effects of Aciphex:

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 Under active thyroid:

Under active thyroid (2,751 drugs)

Browse all the conditions that are associated with Under active thyroid:

Under active thyroid (2,634 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on rabeprazole sodium (the active ingredients of Aciphex) and Aciphex (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.