Haldol and Mental status changes - a phase IV clinical study of FDA data

Summary:

Mental status changes is reported as a side effect among people who take Haldol (haloperidol), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Ativan, and have Agitation.

The phase IV clinical study analyzes which people have Mental status changes when taking Haldol. It is created by eHealthMe based on reports of 22,656 people who have side effects when taking Haldol from the FDA, and is updated regularly.

What is Haldol?

Haldol has active ingredients of haloperidol. It is often used in schizophrenia. eHealthMe is studying from 23,102 Haldol users. Check the latest studies of Haldol.

What is Mental status changes?

Mental status changes (general changes in brain function, such as confusion, amnesia (memory loss), loss of alertness, loss of orientation) is found to be associated with 1,500 drugs and 1,759 conditions by eHealthMe. Check the latest studies of Mental status changes.

On Jul, 04, 2026

22,656 people reported to have side effects when taking Haldol.
Among them, 122 people (0.54%) have Mental status changes.

Could Haldol cause Mental status changes?

Among these 122 people:

How long have people been on Haldol when they have Mental status changes? *

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What is the gender of people who have Mental status changes when taking Haldol? *

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* Approximation only. Some reports may have incomplete information.

Do you take Haldol and have Mental status changes?

- Check whether Mental status changes 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 Haldol:

Haldol (23,102 reports)

Mental status changes treatments and more:

Mental status changes (32,338 reports)

How severe was Mental status changes and when was it recovered:

Mental status changes in Haldol

Expand to all the drugs that have ingredients of haloperidol:

Mental status changes and drugs with ingredients of haloperidol (256 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 Haldol:

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 Mental status changes:

Mental status changes (1,500 drugs)

Browse all the conditions that are associated with Mental status changes:

Mental status changes (1,759 conditions)

Related publications that referenced our studies

Obayi, O., & Tagbo, N. , "Bilateral Pedal Oedema Associated with Intramuscular Haloperidol–A Rare Observation", International Neuropsychiatric Disease Journal, 2018 Jan .
Obayi, O., & Tagbo, N. , "Bilateral Pedal Oedema Associated with Intramuscular Haloperidol–A Rare Observation", International Neuropsychiatric Disease Journal, 2018 Jan .

How the study uses the data?

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