Seroquel and Polycythaemia - a phase IV clinical study of FDA data

Summary:

Polycythaemia is reported as a side effect among people who take Seroquel (quetiapine fumarate), especially for people who are male, 40-49 old, have been taking the drug for 2 - 5 years also take Zyprexa, and have Parkinson's disease.

The phase IV clinical study analyzes which people have Polycythaemia when taking Seroquel. It is created by eHealthMe based on reports of 113,615 people who have side effects when taking Seroquel from the FDA, and is updated regularly.

What is Seroquel?

Seroquel has active ingredients of quetiapine fumarate. It is often used in bipolar disorder. eHealthMe is studying from 120,287 Seroquel users. Check the latest studies of Seroquel.

What is Polycythaemia?

Polycythaemia (proportion of blood volume that is occupied by red blood cells increases) is found to be associated with 278 drugs and 448 conditions by eHealthMe. Check the latest studies of Polycythaemia.

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, 02, 2026

113,615 people reported to have side effects when taking Seroquel.
Among them, 28 people (0.02%) have Polycythaemia.

Among these 28 people:

How long have people been on Seroquel when they have Polycythaemia? *

What is the gender of people who have Polycythaemia when taking Seroquel? *

female: 14.29 %
male: 85.71 %

What is the age of people who have Polycythaemia when taking Seroquel? *

What are other drugs people take besides Seroquel? *

What are other side effects people have besides Polycythaemia? *

Nausea (feeling of having an urge to vomit): 10 people, 35.71%
Weight Increased: 8 people, 28.57%
Drug Ineffective: 8 people, 28.57%
Nausea And Vomiting: 7 people, 25.00%
Malaise (a feeling of general discomfort or uneasiness): 7 people, 25.00%
Gastritis (inflammation of stomach): 6 people, 21.43%
Diarrhea: 6 people, 21.43%
Haemoglobin Increased: 6 people, 21.43%
Neuropathy Peripheral (surface nerve damage): 6 people, 21.43%
Vision Blurred: 6 people, 21.43%

What are the existing conditions these people have? *

Parkinson's Disease: 4 people, 14.29%
Stress And Anxiety: 3 people, 10.71%
Depressed Mood: 3 people, 10.71%
Psychotic Disorder: 3 people, 10.71%
Nausea (feeling of having an urge to vomit): 3 people, 10.71%
Constipation: 2 people, 7.14%
Hyperphosphataemia (electrolyte disturbance in which there is an abnormally elevated level of phosphate in the blood): 2 people, 7.14%
Indigestion: 1 person, 3.57%
Chronic Renal Failure (kidney failure): 1 person, 3.57%
Diabetes: 1 person, 3.57%

* Approximation only. Some reports may have incomplete information.

Do you take Seroquel and have Polycythaemia?

- Check whether Polycythaemia 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 Seroquel:

Seroquel (120,287 reports)

Polycythaemia treatments and more:

Polycythaemia (3,051 reports)

Browse all side effects of Seroquel:

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 Polycythaemia:

Polycythaemia (278 drugs)

Browse all the conditions that are associated with Polycythaemia:

Polycythaemia (448 conditions)

Related publications that referenced our studies

How the study uses the data?

The study uses data from the FDA. It is based on quetiapine fumarate (the active ingredients of Seroquel) and Seroquel (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.