Cetirizine hydrochloride and Abnormal dreams - a phase IV clinical study of FDA data

Summary:

Abnormal dreams is reported as a side effect among people who take Cetirizine hydrochloride (cetirizine hydrochloride), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Vitamin D3, and have Narcolepsy.

The phase IV clinical study analyzes which people have Abnormal dreams when taking Cetirizine hydrochloride. It is created by eHealthMe based on reports of 33,393 people who have side effects when taking Cetirizine hydrochloride from the FDA, and is updated regularly.

What is Cetirizine hydrochloride?

Cetirizine hydrochloride has active ingredients of cetirizine hydrochloride. It is often used in allergies. eHealthMe is studying from 34,908 Cetirizine hydrochloride users. Check the latest studies of Cetirizine hydrochloride.

What is Abnormal dreams?

Abnormal dreams is found to be associated with 1,096 drugs and 1,257 conditions by eHealthMe. Check the latest studies of Abnormal dreams.

On Jul, 07, 2026

33,393 people reported to have side effects when taking Cetirizine hydrochloride.
Among them, 42 people (0.13%) have Abnormal dreams.

Could Cetirizine hydrochloride cause Abnormal dreams?

Among these 42 people:

How long have people been on Cetirizine hydrochloride when they have Abnormal dreams? *

What is the gender of people who have Abnormal dreams when taking Cetirizine hydrochloride? *

female: 60 %
male: 40 %

What is the age of people who have Abnormal dreams when taking Cetirizine hydrochloride? *

What are other drugs people take besides Cetirizine hydrochloride? *

What are other side effects people have besides Abnormal dreams? *

Insomnia (sleeplessness): 12 people, 28.57%
Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect): 10 people, 23.81%
Hallucinations (sensations that appear real but are created by your mind): 10 people, 23.81%
Tremor (trembling or shaking movements in one or more parts of your body): 8 people, 19.05%
Drowsiness: 8 people, 19.05%
Weight Increased: 7 people, 16.67%
Fall: 7 people, 16.67%
Nausea (feeling of having an urge to vomit): 7 people, 16.67%
Nightmares (unpleasant dreams): 7 people, 16.67%
Stress And Anxiety: 7 people, 16.67%

What are the existing conditions these people have? *

Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 8 people, 19.05%
Hypersensitivity: 6 people, 14.29%
Depression: 5 people, 11.90%
Multiple Allergies (allergy to multiple agents): 4 people, 9.52%
High Blood Pressure: 4 people, 9.52%
Seasonal Allergy (allergic condition due to certain season): 4 people, 9.52%
Indigestion: 3 people, 7.14%
Arthritis (form of joint disorder that involves inflammation of one or more joints): 3 people, 7.14%
Stress And Anxiety: 3 people, 7.14%
Sleep Disorder: 3 people, 7.14%

* Approximation only. Some reports may have incomplete information.

Do you take Cetirizine hydrochloride and have Abnormal dreams?

- Check whether Abnormal dreams 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 Cetirizine hydrochloride:

Cetirizine hydrochloride (34,908 reports)

Abnormal dreams treatments and more:

Abnormal dreams (33,379 reports)

Browse all side effects of Cetirizine hydrochloride:

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 Abnormal dreams:

Abnormal dreams (1,096 drugs)

Browse all the conditions that are associated with Abnormal dreams:

Abnormal dreams (1,257 conditions)

Related publications that referenced our studies

T.Audi Yanto, I.Huang, F.Nathania Kosasih, NP Hardjo Lugito, "Nightmare and Abnormal Dreams: Rare Side Effects of Metformin?", Case Reports in Endocrinology, 2018 Jan .
T.Audi Yanto, I.Huang, F.Nathania Kosasih, NP Hardjo Lugito, "Nightmare and Abnormal Dreams: Rare Side Effects of Metformin?", Case Reports in Endocrinology, 2018 Jan .

How the study uses the data?

The study uses data from the FDA. It is based on cetirizine hydrochloride (the active ingredients of Cetirizine hydrochloride) and Cetirizine hydrochloride (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.