Toviaz and Headache - a phase IV clinical study of FDA data

Summary:

Headache is reported as a side effect among people who take Toviaz (fesoterodine fumarate), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Myrbetriq, and have Hypertonic bladder.

The phase IV clinical study analyzes which people have Headache when taking Toviaz. It is created by eHealthMe based on reports of 13,173 people who have side effects when taking Toviaz from the FDA, and is updated regularly.

What is Toviaz?

Toviaz has active ingredients of fesoterodine fumarate. It is often used in urge incontinence. eHealthMe is studying from 13,353 Toviaz users. Check the latest studies of Toviaz.

What is Headache?

Headache (pain in head) is found to be associated with 3,745 drugs and 5,767 conditions by eHealthMe. Check the latest studies of Headache.

On May, 11, 2026

13,173 people reported to have side effects when taking Toviaz.
Among them, 385 people (2.92%) have Headache.

Among these 385 people:

* Approximation only. Some reports may have incomplete information.

Do you take Toviaz and have Headache?

- Check whether Headache 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 Toviaz:

Toviaz (13,353 reports)

Headache treatments and more:

Headache (756,642 reports)

How severe was Headache and when was it recovered:

Headache in Toviaz

Expand to all the drugs that have ingredients of fesoterodine fumarate:

Headache and drugs with ingredients of fesoterodine fumarate (442 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 Toviaz:

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 Headache:

Headache (3,745 drugs)

Browse all the conditions that are associated with Headache:

Headache (5,767 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on fesoterodine fumarate (the active ingredients of Toviaz) and Toviaz (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.