Questran and Rash erythematous - a phase IV clinical study of FDA data

Summary:

Rash erythematous 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 Humira, and have Skin infection.

The phase IV clinical study analyzes which people have Rash erythematous 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 Rash erythematous?

Rash erythematous (redness of the skin) is found to be associated with 1,809 drugs and 1,903 conditions by eHealthMe. Check the latest studies of Rash erythematous.

On Jul, 13, 2026

4,400 people reported to have side effects when taking Questran.
Among them, 13 people (0.3%) have Rash erythematous.

Among these 13 people:

How long have people been on Questran when they have Rash erythematous? *

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

female: 46.15 %
male: 53.85 %

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

What are other drugs people take besides Questran? *

What are other side effects people have besides Rash erythematous? *

Weakness: 4 people, 30.77%
Anaemia (lack of blood): 4 people, 30.77%
Rashes (redness): 4 people, 30.77%
Fatigue (feeling of tiredness): 4 people, 30.77%
Skin Burning Sensation: 3 people, 23.08%
Hyperammonaemia: 3 people, 23.08%
Hepatic Encephalopathy (spectrum of neuropsychiatric abnormalities in patients with liver failure): 3 people, 23.08%
Rash Maculo-Papular (red area on the skin that is covered with small confluent bumps): 3 people, 23.08%
Rash Papular (redness with papule): 3 people, 23.08%
Red Blood Cell Count Decreased: 3 people, 23.08%

What are the existing conditions these people have? *

Skin Infection: 3 people, 23.08%
Osteomyelitis (infection of bone): 2 people, 15.38%
Multiple Sclerosis Relapse (reoccurrence of a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 1 person, 7.69%
High Blood Pressure: 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Questran and have Rash erythematous?

- Check whether Rash erythematous 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)

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 Rash erythematous:

Rash erythematous (1,809 drugs)

Browse all the conditions that are associated with Rash erythematous:

Rash erythematous (1,903 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.