Haloperidol and Gynecomastia - a phase IV clinical study of FDA data

Summary:

Gynecomastia is reported as a side effect among people who take Haloperidol (haloperidol), especially for people who are male, 20-29 old, also take Risperdal, and have Agitation.

The phase IV clinical study analyzes which people have Gynecomastia when taking Haloperidol. It is created by eHealthMe based on reports of 16,432 people who have side effects when taking Haloperidol from the FDA, and is updated regularly.

What is Haloperidol?

Haloperidol has active ingredients of haloperidol. It is often used in schizophrenia. eHealthMe is studying from 16,637 Haloperidol users. Check the latest studies of Haloperidol.

What is Gynecomastia?

Gynecomastia (enlargement of the gland tissue of the male breast) is found to be associated with 685 drugs and 1,007 conditions by eHealthMe. Check the latest studies of Gynecomastia.

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, 04, 2026

16,432 people reported to have side effects when taking Haloperidol.
Among them, 26 people (0.16%) have Gynecomastia.

Among these 26 people:

What is the gender of people who have Gynecomastia when taking Haloperidol? *

female: 0.0 %
male: 100 %

What is the age of people who have Gynecomastia when taking Haloperidol? *

What are other drugs people take besides Haloperidol? *

What are other side effects people have besides Gynecomastia? *

Weight Increased: 10 people, 38.46%
Emotional Disorder: 7 people, 26.92%
Drug Ineffective: 5 people, 19.23%
Diabetes: 4 people, 15.38%
Hyperprolactinaemia (abnormally high levels of prolactin in the blood): 4 people, 15.38%
Sedation: 3 people, 11.54%
Breast Pain: 3 people, 11.54%
Extrapyramidal Disorder (involuntary muscle spasms in the face and neck): 3 people, 11.54%
Drowsiness: 3 people, 11.54%
Metabolic Syndrome (a combination of the medical disorders that, when occurring together, increase the risk of developing cardiovascular disease): 3 people, 11.54%

What are the existing conditions these people have? *

Agitation (state of anxiety or nervous excitement): 7 people, 26.92%
Psychotic Disorder: 4 people, 15.38%
Extrapyramidal Disorder (involuntary muscle spasms in the face and neck): 3 people, 11.54%
Sleep Disorder: 2 people, 7.69%
Movement - Uncontrolled Or Slow: 2 people, 7.69%
Depression: 2 people, 7.69%
Autism Spectrum Disorder (developmental disabilities that can cause significant social, communication and behavioural challenges): 2 people, 7.69%
Stress And Anxiety: 1 person, 3.85%
Schizoaffective Disorder Depressive Type (mental illness featuring schizophrenia and a mood disorder): 1 person, 3.85%
Personality Disorder: 1 person, 3.85%

* Approximation only. Some reports may have incomplete information.

Do you take Haloperidol and have Gynecomastia?

- Check whether Gynecomastia 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 Haloperidol:

Haloperidol (16,637 reports)

Gynecomastia treatments and more:

Gynecomastia (48,580 reports)

Browse all side effects of Haloperidol:

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 Gynecomastia:

Gynecomastia (685 drugs)

Browse all the conditions that are associated with Gynecomastia:

Gynecomastia (1,007 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 .
Coskun M, Adak I, Akaltun I, "Bilateral gynecomastia in a preadolescent boy while under treatment with methylphenidate and paroxetine", Journal of clinical psychopharmacology, 2014 Aug .
Obayi, O., & Tagbo, N. , "Bilateral Pedal Oedema Associated with Intramuscular Haloperidol–A Rare Observation", International Neuropsychiatric Disease Journal, 2018 Jan .
Coskun M, Adak I, Akaltun I, "Bilateral gynecomastia in a preadolescent boy while under treatment with methylphenidate and paroxetine", Journal of clinical psychopharmacology, 2014 Aug .

How the study uses the data?

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