Allegra allergy and Stomatitis - a phase IV clinical study of FDA data

Summary:

Stomatitis is reported as a side effect among people who take Allegra allergy (fexofenadine hydrochloride), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Albuterol Sulfate, and have Multiple myeloma.

The phase IV clinical study analyzes which people have Stomatitis when taking Allegra allergy. It is created by eHealthMe based on reports of 13,031 people who have side effects when taking Allegra allergy from the FDA, and is updated regularly.

What is Allegra allergy?

Allegra allergy has active ingredients of fexofenadine hydrochloride. It is often used in allergies. eHealthMe is studying from 13,594 Allegra allergy users. Check the latest studies of Allegra allergy.

What is Stomatitis?

Stomatitis (inflammation of mucous membrane of mouth) is found to be associated with 1,885 drugs and 2,011 conditions by eHealthMe. Check the latest studies of Stomatitis.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 14, 2026

13,031 people reported to have side effects when taking Allegra allergy.
Among them, 33 people (0.25%) have Stomatitis.

Among these 33 people:

How long have people been on Allegra allergy when they have Stomatitis? *

What is the gender of people who have Stomatitis when taking Allegra allergy? *

female: 75 %
male: 25 %

What is the age of people who have Stomatitis when taking Allegra allergy? *

What are other drugs people take besides Allegra allergy? *

What are other side effects people have besides Stomatitis? *

Fatigue (feeling of tiredness): 13 people, 39.39%
Cough: 8 people, 24.24%
Abdominal Distension: 6 people, 18.18%
Diarrhea: 6 people, 18.18%
Nausea (feeling of having an urge to vomit): 6 people, 18.18%
Weakness: 6 people, 18.18%
Flatulence (flatus expelled through the anus): 5 people, 15.15%
Dyspnea (difficult or laboured breathing): 5 people, 15.15%
Dry Mouth: 5 people, 15.15%
Malaise (a feeling of general discomfort or uneasiness): 4 people, 12.12%

What are the existing conditions these people have? *

Multiple Myeloma (cancer of the plasma cells): 7 people, 21.21%
Renal Cell Carcinoma (a kidney cancer): 4 people, 12.12%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 4 people, 12.12%
Ovarian Cancer (cancer of ovary): 3 people, 9.09%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 3 people, 9.09%
Back Pain: 3 people, 9.09%
Pain: 2 people, 6.06%
Primary Myelofibrosis (primary disorder of the bone marrow): 2 people, 6.06%
Breast Cancer Female: 2 people, 6.06%
Hereditary Angioedema (recurrent episodes of severe swelling): 2 people, 6.06%

* Approximation only. Some reports may have incomplete information.

Do you take Allegra allergy and have Stomatitis?

- Check whether Stomatitis 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 Allegra allergy:

Allegra allergy (13,594 reports)

Stomatitis treatments and more:

Stomatitis (75,938 reports)

Browse all side effects of Allegra allergy:

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 Stomatitis:

Stomatitis (1,885 drugs)

Browse all the conditions that are associated with Stomatitis:

Stomatitis (2,011 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on fexofenadine hydrochloride (the active ingredients of Allegra allergy) and Allegra allergy (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.