Haldol and Muscle function loss - a phase IV clinical study of FDA data

Summary:

Muscle function loss 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 Risperdal, and have Pain.

The phase IV clinical study analyzes which people have Muscle function loss 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 Muscle function loss?

Muscle function loss is found to be associated with 1,000 drugs and 1,520 conditions by eHealthMe. Check the latest studies of Muscle function loss.

On Jul, 08, 2026

22,656 people reported to have side effects when taking Haldol.
Among them, 67 people (0.3%) have Muscle function loss.

Could Haldol cause Muscle function loss?

Among these 67 people:

How long have people been on Haldol when they have Muscle function loss? *

What is the gender of people who have Muscle function loss when taking Haldol? *

female: 37.31 %
male: 62.69 %

What is the age of people who have Muscle function loss when taking Haldol? *

What are other drugs people take besides Haldol? *

What are other side effects people have besides Muscle function loss? *

Speech Impairment (Adult) (inability to speak (adult)): 9 people, 13.43%
Agitation (state of anxiety or nervous excitement): 8 people, 11.94%
Nausea And Vomiting: 8 people, 11.94%
Stress And Anxiety: 7 people, 10.45%
Overdose: 7 people, 10.45%
Insomnia (sleeplessness): 7 people, 10.45%
Stroke (sudden death of a portion of the brain cells due to a lack of oxygen): 6 people, 8.96%
Tremor (trembling or shaking movements in one or more parts of your body): 6 people, 8.96%
Transient Ischaemic Attack (a transient episode of neurologic dysfunction caused by ischemia (loss of blood flow)): 6 people, 8.96%
Fall: 6 people, 8.96%

What are the existing conditions these people have? *

Depression: 7 people, 10.45%
Pain: 7 people, 10.45%
Agitation (state of anxiety or nervous excitement): 6 people, 8.96%
Ill-Defined Disorder: 5 people, 7.46%
Personality Disorder: 4 people, 5.97%
Stress And Anxiety: 4 people, 5.97%
Essential Hypertension (primary hypertension): 4 people, 5.97%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 3 people, 4.48%
Restless Leg Syndrome (a powerful urge to move your legs): 2 people, 2.99%
Psychotic Disorder: 2 people, 2.99%

* Approximation only. Some reports may have incomplete information.

Do you take Haldol and have Muscle function loss?

- Check whether Muscle function loss 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)

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 Muscle function loss:

Muscle function loss (1,000 drugs)

Browse all the conditions that are associated with Muscle function loss:

Muscle function loss (1,520 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.