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

Summary:

Uc is reported as a side effect among people who take Questran (cholestyramine), especially for people who are male, 60+ old, have been taking the drug for 1 - 6 months also take Lipitor, and have Dyspnea.

The phase IV clinical study analyzes which people have Uc 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 Uc?

Uc is found to be associated with 1,287 drugs and 2,034 conditions by eHealthMe. Check the latest studies of Uc.

On Apr, 11, 2026

4,400 people reported to have side effects when taking Questran.
Among them, 20 people (0.45%) have Uc.

Among these 20 people:

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

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

female: 30 %
male: 70 %

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

What are other drugs people take besides Questran? *

What are other side effects people have besides Uc? *

Weakness: 6 people, 30.00%
Fever: 6 people, 30.00%
Urinary Tract Infection: 5 people, 25.00%
Appetite - Decreased (decreased appetite occurs when you have a reduced desire to eat): 5 people, 25.00%
Pneumonia: 5 people, 25.00%
Hernia (hernia happens when part of an internal organ or tissue bulges through a weak area of muscle): 5 people, 25.00%
Nausea (feeling of having an urge to vomit): 4 people, 20.00%
Nasopharyngitis (inflammation of the nasopharynx): 4 people, 20.00%
Cholangitis Sclerosing (infection and obstruction of bile duct): 4 people, 20.00%
Malaise (a feeling of general discomfort or uneasiness): 4 people, 20.00%

What are the existing conditions these people have? *

Wheezing (a high-pitched whistling sound made while you breath): 2 people, 10.00%
Urinary Tract Infection: 2 people, 10.00%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 2 people, 10.00%
Pain: 2 people, 10.00%
Nausea (feeling of having an urge to vomit): 2 people, 10.00%
Muscle Spasms (muscle contraction): 2 people, 10.00%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 2 people, 10.00%
High Blood Cholesterol: 2 people, 10.00%
Fibromyalgia (a long-term condition which causes pain all over the body): 2 people, 10.00%
Dyspnea (difficult or laboured breathing): 2 people, 10.00%

* Approximation only. Some reports may have incomplete information.

Do you take Questran and have Uc?

- Check whether Uc 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)

Uc treatments and more:

Uc (188,235 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 Uc:

Uc (1,287 drugs)

Browse all the conditions that are associated with Uc:

Uc (2,034 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.