Prozac weekly and Lightheadedness - a phase IV clinical study of FDA data

Summary:

Lightheadedness is reported as a side effect among people who take Prozac weekly (fluoxetine hydrochloride), especially for people who are male, 50-59 old, also take Prozac, and have Diabetes.

The phase IV clinical study analyzes which people have Lightheadedness when taking Prozac weekly. It is created by eHealthMe based on reports of 165 people who have side effects when taking Prozac weekly from the FDA, and is updated regularly.

What is Prozac weekly?

Prozac weekly has active ingredients of fluoxetine hydrochloride. It is often used in depression. eHealthMe is studying from 209 Prozac weekly users. Check the latest studies of Prozac weekly.

What is Lightheadedness?

Lightheadedness (a common and often unpleasant sensation of dizziness and/or feeling that one may be about to faint) is found to be associated with 3,965 drugs and 5,781 conditions by eHealthMe. Check the latest studies of Lightheadedness.

On Jun, 18, 2026

165 people reported to have side effects when taking Prozac weekly.
Among them, 8 people (4.85%) have Lightheadedness.

Could Prozac weekly cause Lightheadedness?

Among these 8 people:

What is the gender of people who have Lightheadedness when taking Prozac weekly? *

female: 37.5 %
male: 62.5 %

What is the age of people who have Lightheadedness when taking Prozac weekly? *

What are other drugs people take besides Prozac weekly? *

What are other side effects people have besides Lightheadedness? *

Weight Decreased: 4 people, 50.00%
Feeling Abnormal: 4 people, 50.00%
Heart Rate Irregular: 3 people, 37.50%
Confusion: 3 people, 37.50%
Nausea (feeling of having an urge to vomit): 3 people, 37.50%
Cardiac Valve Disease (heart valve disease): 3 people, 37.50%
Pulmonary Oedema (fluid accumulation in the lungs): 3 people, 37.50%
Rectal Haemorrhage (bleeding from anus): 3 people, 37.50%
Relationship Breakdown: 3 people, 37.50%
Insomnia (sleeplessness): 3 people, 37.50%

What are the existing conditions these people have? *

Obsessive-Compulsive Disorder (an anxiety disorder characterized by intrusive thoughts that produce uneasiness, apprehension, fear, or worry;): 1 person, 12.50%
Hypothalamo-Pituitary Disorders (loss of function in an endocrine gland due to failure of the pituitary gland to secrete hormones which stimulate that gland's function): 1 person, 12.50%
Generalized Anxiety Disorder (excessive, uncontrollable, unexplained and often irrational worry): 1 person, 12.50%
Fibromyalgia (a long-term condition which causes pain all over the body): 1 person, 12.50%
Diabetes: 1 person, 12.50%

* Approximation only. Some reports may have incomplete information.

Do you take Prozac weekly and have Lightheadedness?

- Check whether Lightheadedness is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Prozac weekly:

Prozac weekly (209 reports)

Lightheadedness treatments and more:

Lightheadedness (613,960 reports)

Browse all side effects of Prozac weekly:

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 Lightheadedness:

Lightheadedness (3,965 drugs)

Browse all the conditions that are associated with Lightheadedness:

Lightheadedness (5,781 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on fluoxetine hydrochloride (the active ingredients of Prozac weekly) and Prozac weekly (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.