Gleevec and Lightheadedness - a phase IV clinical study of FDA data

Summary:

Lightheadedness is reported as a side effect among people who take Gleevec (imatinib mesylate), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Lasix, and have Gastrointestinal stromal tumor.

The phase IV clinical study analyzes which people have Lightheadedness when taking Gleevec. It is created by eHealthMe based on reports of 35,000 people who have side effects when taking Gleevec from the FDA, and is updated regularly.

What is Gleevec?

Gleevec has active ingredients of imatinib mesylate. It is often used in chronic myelogenous leukemia (cml). eHealthMe is studying from 35,415 Gleevec users. Check the latest studies of Gleevec.

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 3,979 drugs and 5,745 conditions by eHealthMe. Check the latest studies of Lightheadedness.

On Aug, 03, 2025

35,000 people reported to have side effects when taking Gleevec.
Among them, 749 people (2.14%) have Lightheadedness.

Among these 749 people:

How long have people been on Gleevec when they have Lightheadedness? *

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

female: 57.98 %
male: 42.02 %

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

What are other drugs people take besides Gleevec? *

What are other side effects people have besides Lightheadedness? *

Nausea (feeling of having an urge to vomit): 272 people, 36.32%
Fatigue (feeling of tiredness): 211 people, 28.17%
Diarrhea: 203 people, 27.10%
Nausea And Vomiting: 177 people, 23.63%
Dyspnea (difficult or laboured breathing): 173 people, 23.10%
Weakness: 161 people, 21.50%
Headache (pain in head): 140 people, 18.69%
Rashes (redness): 111 people, 14.82%
Malaise (a feeling of general discomfort or uneasiness): 111 people, 14.82%
Joint Pain: 107 people, 14.29%

What are the existing conditions these people have? *

Gastrointestinal Stromal Tumor: 156 people, 20.83%
Pain: 31 people, 4.14%
Nausea (feeling of having an urge to vomit): 24 people, 3.20%
Vitamin B12 Deficiency: 15 people, 2.00%
Folate Deficiency (lack of folic acid): 15 people, 2.00%
Gastric Cancer (stomach cancer): 14 people, 1.87%
Neoplasm Malignant (cancer tumour): 14 people, 1.87%
High Blood Cholesterol: 13 people, 1.74%
Osteoporosis (bones weak and more likely to break): 12 people, 1.60%
Joint Pain: 12 people, 1.60%

* Approximation only. Some reports may have incomplete information.

Do you take Gleevec and have Lightheadedness?

- Check whether Lightheadedness 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 Gleevec:

Gleevec (35,415 reports)

Lightheadedness treatments and more:

Lightheadedness (613,931 reports)

Browse all side effects of Gleevec:

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

Common drugs associated with Lightheadedness:

Browse all the drugs that are associated with Lightheadedness:

Lightheadedness (3,979 drugs)

Common conditions associated with Lightheadedness:

Hypertension: 33,072 reports
Blood pressure increased: 32,916 reports
High blood pressure: 32,915 reports
Ms: 29,675 reports
Rheumatoid arthritis: 25,674 reports
Arthritis - rheumatoid: 25,672 reports
Depression: 22,809 reports
Antidepressant therapy: 22,796 reports
Pain exacerbated: 19,431 reports
Pain: 19,430 reports

Browse all the conditions that are associated with Lightheadedness:

Lightheadedness (5,745 conditions)

Related publications that referenced our studies

O'rafferty C, McElligott F, Storey L, O'marcaigh A, Smith O, "Pneumatosis intestinalis and imatinib mesylate", Annals of hematology, 2014 Oct .
O'rafferty C, McElligott F, Storey L, O'marcaigh A, Smith O, "Pneumatosis intestinalis and imatinib mesylate", Annals of hematology, 2014 Oct .

How the study uses the data?

The study uses data from the FDA. It is based on imatinib mesylate (the active ingredients of Gleevec) and Gleevec (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.