Claritin and Loose stools - a phase IV clinical study of FDA data

Summary:

Loose stools is reported as a side effect among people who take Claritin (loratadine), especially for people who are female, 60+ old, also take Benadryl, and have Atrial fibrillation/flutter.

The phase IV clinical study analyzes which people have Loose stools when taking Claritin. It is created by eHealthMe based on reports of 74,516 people who have side effects when taking Claritin from the FDA, and is updated regularly.

What is Claritin?

Claritin has active ingredients of loratadine. It is often used in allergies. eHealthMe is studying from 77,317 Claritin users. Check the latest studies of Claritin.

What is Loose stools?

Loose stools is found to be associated with 236 drugs and 357 conditions by eHealthMe. Check the latest studies of Loose stools.

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 Sep, 02, 2026

74,516 people reported to have side effects when taking Claritin.
Among them, 13 people (0.02%) have Loose stools.

Among these 13 people:

What is the gender of people who have Loose stools when taking Claritin? *

female: 92.31 %
male: 7.69 %

What is the age of people who have Loose stools when taking Claritin? *

What are other drugs people take besides Claritin? *

What are other side effects people have besides Loose stools? *

Diarrhea: 6 people, 46.15%
Joint Pain: 6 people, 46.15%
Nausea (feeling of having an urge to vomit): 6 people, 46.15%
Haemorrhoids (a swollen vein or group of veins in the region of the anus): 6 people, 46.15%
Rectal Bleeding (bleeding from rectum): 5 people, 38.46%
Back Pain: 4 people, 30.77%
Low Density Lipoprotein Increased (cholesterol increased in blood): 3 people, 23.08%
Faecal Incontinence (a lack of control over passing stool): 3 people, 23.08%
High Blood Cholesterol: 3 people, 23.08%
Heart Palpitations (feelings or sensations that your heart is pounding or racing): 3 people, 23.08%

What are the existing conditions these people have? *

Joint Pain: 1 person, 7.69%
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): 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Claritin and have Loose stools?

- Check whether Loose stools 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 Claritin:

Claritin (77,317 reports)

Loose stools treatments and more:

Loose stools (2,493 reports)

Browse all side effects of Claritin:

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 Loose stools:

Loose stools (236 drugs)

Browse all the conditions that are associated with Loose stools:

Loose stools (357 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on loratadine (the active ingredients of Claritin) and Claritin (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.