Claritin and Diverticulitis - a phase IV clinical study of FDA data

Summary:

Diverticulitis is reported as a side effect among people who take Claritin (loratadine), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Synthroid, and have Asthma.

The phase IV clinical study analyzes which people have Diverticulitis 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 77,316 Claritin users. Check the latest studies of Claritin.

What is Diverticulitis?

Diverticulitis (digestive disease which involves the formation of pouches (diverticula) within the bowel wall) is found to be associated with 1,362 drugs and 1,360 conditions by eHealthMe. Check the latest studies of Diverticulitis.

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, 22, 2026

74,516 people reported to have side effects when taking Claritin.
Among them, 239 people (0.32%) have Diverticulitis.

Among these 239 people:

* Approximation only. Some reports may have incomplete information.

Do you take Claritin and have Diverticulitis?

- Check whether Diverticulitis 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 (77,316 reports)

Diverticulitis treatments and more:

Diverticulitis (38,782 reports)

How severe was Diverticulitis and when was it recovered:

Diverticulitis in Claritin

Expand to all the drugs that have ingredients of loratadine:

Diverticulitis and drugs with ingredients of loratadine (427 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 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 Diverticulitis:

Diverticulitis (1,362 drugs)

Browse all the conditions that are associated with Diverticulitis:

Diverticulitis (1,360 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.