Questran and Stroke - a phase IV clinical study of FDA data

Summary:

Stroke is reported as a side effect among people who take Questran (cholestyramine), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Lisinopril, and have Multiple sclerosis.

The phase IV clinical study analyzes which people have Stroke when taking Questran. It is created by eHealthMe based on reports of 4,400 people who have side effects when taking Questran from the FDA, and is updated regularly.

What is Questran?

Questran has active ingredients of cholestyramine. It is often used in diarrhea. eHealthMe is studying from 4,490 Questran users. Check the latest studies of Questran.

What is Stroke?

Stroke (sudden death of a portion of the brain cells due to a lack of oxygen) is found to be associated with 2,331 drugs and 3,028 conditions by eHealthMe. Check the latest studies of Stroke.

On Jun, 23, 2026

4,400 people reported to have side effects when taking Questran.
Among them, 35 people (0.8%) have Stroke.

Among these 35 people:

How long have people been on Questran when they have Stroke? *

What is the gender of people who have Stroke when taking Questran? *

female: 57.14 %
male: 42.86 %

What is the age of people who have Stroke when taking Questran? *

What are other drugs people take besides Questran? *

What are other side effects people have besides Stroke? *

High Blood Pressure: 12 people, 34.29%
Nausea (feeling of having an urge to vomit): 6 people, 17.14%
Weight Decreased: 5 people, 14.29%
Hyperlipidaemia (presence of excess lipids in the blood): 5 people, 14.29%
Chills (felling of cold): 4 people, 11.43%
Blood Alkaline Phosphatase Increased: 4 people, 11.43%
Multiple Injuries: 4 people, 11.43%
Abdominal Pain Upper: 4 people, 11.43%
Urinary Tract Infection: 3 people, 8.57%
Feeling Abnormal: 3 people, 8.57%

What are the existing conditions these people have? *

Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 5 people, 14.29%
Diabetic Retinal Oedema (excessive build-up of fluid in the retina due to diabetes): 4 people, 11.43%
Insomnia (sleeplessness): 3 people, 8.57%
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): 3 people, 8.57%
High Blood Pressure: 3 people, 8.57%
Weakness: 2 people, 5.71%
Arrhythmias (irregular heartbeat): 2 people, 5.71%
Fatigue (feeling of tiredness): 2 people, 5.71%
Gait Disturbance: 2 people, 5.71%
Hyperlipidaemia (presence of excess lipids in the blood): 2 people, 5.71%

* Approximation only. Some reports may have incomplete information.

Do you take Questran and have Stroke?

- Check whether Stroke 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 Questran:

Questran (4,490 reports)

Stroke treatments and more:

Stroke (334,635 reports)

Browse all side effects of Questran:

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 Stroke:

Stroke (2,331 drugs)

Browse all the conditions that are associated with Stroke:

Stroke (3,028 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on cholestyramine (the active ingredients of Questran) and Questran (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.