Fluphenazine and Headache - a phase IV clinical study of FDA data

Summary:

Headache is reported as a side effect among people who take Fluphenazine (fluphenazine decanoate), especially for people who are female, 40-49 old, also take Metformin, and have Immunodeficiency common variable.

The phase IV clinical study analyzes which people have Headache when taking Fluphenazine. It is created by eHealthMe based on reports of 2,335 people who have side effects when taking Fluphenazine from the FDA, and is updated regularly.

What is Fluphenazine?

Fluphenazine has active ingredients of fluphenazine decanoate. It is often used in schizophrenia. eHealthMe is studying from 2,364 Fluphenazine users. Check the latest studies of Fluphenazine.

What is Headache?

Headache (pain in head) is found to be associated with 3,751 drugs and 5,772 conditions by eHealthMe. Check the latest studies of Headache.

On Jul, 20, 2026

2,335 people reported to have side effects when taking Fluphenazine.
Among them, 37 people (1.58%) have Headache.

Among these 37 people:

What is the gender of people who have Headache when taking Fluphenazine? *

female: 75 %
male: 25 %

What is the age of people who have Headache when taking Fluphenazine? *

What are other drugs people take besides Fluphenazine? *

Metformin: 13 people, 35.14%
Topiramate: 9 people, 24.32%
Myrbetriq: 9 people, 24.32%
Meclizine Hydrochloride: 9 people, 24.32%
Lidocaine: 9 people, 24.32%
Gabapentin: 9 people, 24.32%
Spiriva Respimat: 9 people, 24.32%
Epinephrine: 9 people, 24.32%
Acetaminophen: 9 people, 24.32%
Cyclobenzaprine Hydrochloride: 8 people, 21.62%

What are other side effects people have besides Headache? *

Nausea (feeling of having an urge to vomit): 14 people, 37.84%
Fatigue (feeling of tiredness): 10 people, 27.03%
Back Pain: 9 people, 24.32%
Diarrhea: 9 people, 24.32%
Sinusitis (inflammation of sinus): 9 people, 24.32%
Infusion Site Erythema (reddening of the skin at infusion site): 9 people, 24.32%
Stress And Anxiety: 9 people, 24.32%
Infusion Site Pain: 9 people, 24.32%
Urinary Tract Infection: 9 people, 24.32%
Malaise (a feeling of general discomfort or uneasiness): 8 people, 21.62%

What are the existing conditions these people have? *

Immunodeficiency Common Variable: 10 people, 27.03%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 7 people, 18.92%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 5 people, 13.51%
Depression: 4 people, 10.81%
Drowsiness: 4 people, 10.81%
Insomnia (sleeplessness): 3 people, 8.11%
Heart Rate Irregular: 2 people, 5.41%
High Blood Cholesterol: 2 people, 5.41%
Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 2 people, 5.41%
Stress And Anxiety: 2 people, 5.41%

* Approximation only. Some reports may have incomplete information.

Do you take Fluphenazine and have Headache?

- Check whether Headache 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 Fluphenazine:

Fluphenazine (2,364 reports)

Headache treatments and more:

Headache (756,642 reports)

Browse all side effects of Fluphenazine:

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 Headache:

Headache (3,751 drugs)

Browse all the conditions that are associated with Headache:

Headache (5,772 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on fluphenazine decanoate (the active ingredients of Fluphenazine) and Fluphenazine (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.