Claritin-d and Nightmares - a phase IV clinical study of FDA data

Summary:

Nightmares is reported as a side effect among people who take Claritin-d (loratadine; pseudoephedrine sulfate), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Lyrica, and have Seasonal allergy.

The phase IV clinical study analyzes which people have Nightmares when taking Claritin-d. It is created by eHealthMe based on reports of 6,243 people who have side effects when taking Claritin-d from the FDA, and is updated regularly.

What is Claritin-d?

Claritin-d has active ingredients of loratadine; pseudoephedrine sulfate. It is often used in allergies. eHealthMe is studying from 7,055 Claritin-d users. Check the latest studies of Claritin-d.

What is Nightmares?

Nightmares (unpleasant dreams) is found to be associated with 1,330 drugs and 1,914 conditions by eHealthMe. Check the latest studies of Nightmares.

On Jul, 27, 2026

6,243 people reported to have side effects when taking Claritin-d.
Among them, 16 people (0.26%) have Nightmares.

Among these 16 people:

How long have people been on Claritin-d when they have Nightmares? *

What is the gender of people who have Nightmares when taking Claritin-d? *

female: 64.29 %
male: 35.71 %

What is the age of people who have Nightmares when taking Claritin-d? *

What are other drugs people take besides Claritin-d? *

What are other side effects people have besides Nightmares? *

Insomnia (sleeplessness): 4 people, 25.00%
Fatigue (feeling of tiredness): 3 people, 18.75%
Heart Rate Increased: 2 people, 12.50%
Cervical Vertebral Fracture: 2 people, 12.50%
Stress And Anxiety: 2 people, 12.50%
Nasopharyngitis (inflammation of the nasopharynx): 2 people, 12.50%
Diarrhea: 2 people, 12.50%
Respiratory Rate Increased (excess breathing rate/min): 2 people, 12.50%
Drowsiness: 2 people, 12.50%
Incoherent (talking in a confused and unclear way): 2 people, 12.50%

What are the existing conditions these people have? *

Seasonal Allergy (allergic condition due to certain season): 4 people, 25.00%
Depression: 3 people, 18.75%
Hypersensitivity: 2 people, 12.50%
Nasopharyngitis (inflammation of the nasopharynx): 2 people, 12.50%
Multiple Myeloma (cancer of the plasma cells): 2 people, 12.50%
Stress And Anxiety: 1 person, 6.25%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 1 person, 6.25%
Circadian Rhythm Sleep Disorder (family of sleep disorders affecting, among other things, the timing of sleep): 1 person, 6.25%
Cough: 1 person, 6.25%
Eye Pruritus (eye itching): 1 person, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Claritin-d and have Nightmares?

- Check whether Nightmares 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-d:

Claritin-d (7,055 reports)

Nightmares treatments and more:

Nightmares (42,077 reports)

How severe was Nightmares and when was it recovered:

Nightmares in Claritin-d

Expand to all the drugs that have ingredients of loratadine; pseudoephedrine sulfate:

Nightmares and drugs with ingredients of loratadine; pseudoephedrine sulfate (19 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-d:

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 Nightmares:

Nightmares (1,330 drugs)

Browse all the conditions that are associated with Nightmares:

Nightmares (1,914 conditions)

How the study uses the data?

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