Enhertu and Dizziness - a phase IV clinical study of FDA data

Summary:

Dizziness is reported as a side effect among people who take Enhertu (fam-trastuzumab deruxtecan-nxki), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Prednisone, and have Breast cancer metastatic.

The phase IV clinical study analyzes which people have Dizziness when taking Enhertu. It is created by eHealthMe based on reports of 5,111 people who have side effects when taking Enhertu from the FDA, and is updated regularly.

What is Enhertu?

Enhertu has active ingredients of fam-trastuzumab deruxtecan-nxki. eHealthMe is studying from 5,113 Enhertu users. Check the latest studies of Enhertu.

What is Dizziness?

Dizziness is found to be associated with 3,573 drugs and 5,711 conditions by eHealthMe. Check the latest studies of Dizziness.

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 Aug, 12, 2026

5,111 people reported to have side effects when taking Enhertu.
Among them, 53 people (1.04%) have Dizziness.

Among these 53 people:

How long have people been on Enhertu when they have Dizziness? *

What is the gender of people who have Dizziness when taking Enhertu? *

female: 87.5 %
male: 12.5 %

What is the age of people who have Dizziness when taking Enhertu? *

What are other drugs people take besides Enhertu? *

Prednisone: 5 people, 9.43%
Prochlorperazine Maleate: 4 people, 7.55%
Aloxi: 3 people, 5.66%
Dexamethasone: 3 people, 5.66%
Emend: 3 people, 5.66%
Zyrtec: 2 people, 3.77%
Ondansetron: 2 people, 3.77%
Hydrochlorothiazide: 2 people, 3.77%
Sodium Chloride: 1 person, 1.89%
Biotin: 1 person, 1.89%

What are other side effects people have besides Dizziness? *

Nausea (feeling of having an urge to vomit): 20 people, 37.74%
Appetite - Decreased (decreased appetite occurs when you have a reduced desire to eat): 15 people, 28.30%
Fatigue (feeling of tiredness): 15 people, 28.30%
Hair Loss: 14 people, 26.42%
Feeling Abnormal: 10 people, 18.87%
Diarrhea: 10 people, 18.87%
Constipation: 10 people, 18.87%
Malaise (a feeling of general discomfort or uneasiness): 8 people, 15.09%
Thrombocytopenia (decrease of platelets in blood): 8 people, 15.09%
Nausea And Vomiting: 7 people, 13.21%

What are the existing conditions these people have? *

Breast Cancer Metastatic: 20 people, 37.74%
Breast Cancer: 11 people, 20.75%
High Blood Pressure: 4 people, 7.55%
Hyperuricaemia (level of uric acid in the blood that is abnormally high): 3 people, 5.66%
Nephrotic Syndrome (kidney disease with proteinuria, hypoalbuminemia, and oedema): 3 people, 5.66%
Constipation: 3 people, 5.66%
Dyslipidaemia (abnormal amount of lipids): 3 people, 5.66%
Metastases To Lung (cancer spreads to lung): 2 people, 3.77%
Breast Cancer Female: 1 person, 1.89%
Primary Immunodeficiency Syndrome: 1 person, 1.89%

* Approximation only. Some reports may have incomplete information.

Do you take Enhertu and have Dizziness?

- Check whether Dizziness 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 Enhertu:

Enhertu (5,113 reports)

Dizziness treatments and more:

Dizziness (613,962 reports)

How severe was Dizziness and when was it recovered:

Dizziness in Enhertu

Expand to all the drugs that have ingredients of fam-trastuzumab deruxtecan-nxki:

Dizziness and drugs with ingredients of fam-trastuzumab deruxtecan-nxki

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Enhertu:

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 Dizziness:

Dizziness (3,573 drugs)

Browse all the conditions that are associated with Dizziness:

Dizziness (5,711 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on fam-trastuzumab deruxtecan-nxki (the active ingredients of Enhertu) and Enhertu (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.