Allegra and Birth control - a phase IV clinical study of FDA data

Summary:

Birth control is reported as a side effect among people who take Allegra (fexofenadine hydrochloride), especially for people who are female, 30-39 old, have been taking the drug for 1 - 6 months also take Singulair, and have Asthma.

The phase IV clinical study analyzes which people have Birth control when taking Allegra. It is created by eHealthMe based on reports of 73,095 people who have side effects when taking Allegra from the FDA, and is updated regularly.

What is Allegra?

Allegra has active ingredients of fexofenadine hydrochloride. It is often used in allergies. eHealthMe is studying from 75,497 Allegra users. Check the latest studies of Allegra.

What is Birth control?

Birth control is found to be associated with 865 drugs and 1,644 conditions by eHealthMe. Check the latest studies of Birth control.

On Jul, 15, 2026

73,095 people reported to have side effects when taking Allegra.
Among them, 65 people (0.09%) have Birth control.

Among these 65 people:

How long have people been on Allegra when they have Birth control? *

What is the gender of people who have Birth control when taking Allegra? *

female: 98.39 %
male: 1.61 %

What is the age of people who have Birth control when taking Allegra? *

What are other drugs people take besides Allegra? *

What are other side effects people have besides Birth control? *

Drug Exposure During Pregnancy: 29 people, 44.62%
Dizziness: 10 people, 15.38%
Fatigue (feeling of tiredness): 8 people, 12.31%
Headache (pain in head): 7 people, 10.77%
Abortion Spontaneous (naturally occurring miscarriage): 7 people, 10.77%
Haemorrhage (bleeding): 6 people, 9.23%
Intra-Uterine Death: 6 people, 9.23%
Urinary Tract Infection: 6 people, 9.23%
Depression: 6 people, 9.23%
Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 6 people, 9.23%

What are the existing conditions these people have? *

Asthma: 9 people, 13.85%
Immunodeficiency Common Variable: 6 people, 9.23%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 5 people, 7.69%
Primary Immunodeficiency Syndrome: 4 people, 6.15%
Postpartum Depression (depression suffered by a mother following childbirth): 4 people, 6.15%
Hypersensitivity: 4 people, 6.15%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 3 people, 4.62%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 3 people, 4.62%
Depression: 3 people, 4.62%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 3 people, 4.62%

* Approximation only. Some reports may have incomplete information.

Do you take Allegra and have Birth control?

- Check whether Birth control 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:

Allegra (75,497 reports)

Birth control treatments and more:

Birth control (288,761 reports)

Browse all side effects of Allegra:

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 Birth control:

Birth control (865 drugs)

Browse all the conditions that are associated with Birth control:

Birth control (1,644 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) and Allegra (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.