Detrol and Questran drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Detrol (tolterodine tartrate) and Questran (cholestyramine). Common drug interactions include dry mouth among females and injection site erythema among males.

The phase IV clinical study analyzes what interactions people have when they take Detrol and Questran. It is created by eHealthMe based on reports of 24 people who take the same drugs from the FDA, and is updated regularly.

What is Detrol?

Detrol has active ingredients of tolterodine tartrate. It is often used in urge incontinence. eHealthMe is studying from 28,669 Detrol users. Check the latest studies of Detrol.

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.

On Jul, 13, 2026

24 people who take Detrol and Questran together, and have interactions are studied.

What are the common drug interactions of Detrol and Questran, by gender? *:

female:

Dry mouth
Dyspepsia (indigestion)
Atrial fibrillation (fibrillation of the muscles of the atria of the heart)
Barrett's oesophagus (barrett's oesophagus is a disorder in which the lining of the oesophagus (the tube that carries food from the throat to the stomach) is damaged by stomach acid and changed to a lining similar to that of the stomach)
Blood cholesterol increased
Cardiac murmur (an heart sound in valve abnormality)
Chronic kidney disease
Chronic left ventricular failure (long lasting functional impairment of left ventricle of heart)
Cystitis (inflammation of the wall of the bladder)
Diverticulum (out pouching of a hollow (or a fluid-filled) structure in the body)

male:

Injection site erythema (redness at injection site)
Injection site warmth
Pancreatitis acute (sudden inflammation of pancreas)
Pancreatitis necrotising (inflammation of the pancreas cause death of tissue in pancreas)
Pancreatitis relapsing
Renal failure acute (rapid kidney dysfunction)

What are the common drug interactions of Detrol and Questran, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

n/a

50-59:

Injection site erythema (redness at injection site)
Injection site warmth

60+:

Renal failure (kidney dysfunction)
Back pain
Chronic kidney disease
Cystitis (inflammation of the wall of the bladder)
Diverticulum (out pouching of a hollow (or a fluid-filled) structure in the body)
Emotional distress
Gastritis (inflammation of stomach)
Headache (pain in head)
Herpes zoster
Hiatus hernia (hernia resulting from the protrusion of part of the stomach through the diaphragm)

What are the existing conditions these people have? *

High Blood Pressure: 8 people, 33.33%
Pain: 5 people, 20.83%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 5 people, 20.83%
Nausea (feeling of having an urge to vomit): 4 people, 16.67%
Diabetes: 4 people, 16.67%
Nausea And Vomiting: 3 people, 12.50%
Hypovitaminosis (any of several diseases caused by deficiency of one or more vitamins): 3 people, 12.50%
Hypertonic Bladder (bladder-storage function that causes a sudden urge to urinate): 3 people, 12.50%
Hyperlipidaemia (presence of excess lipids in the blood): 3 people, 12.50%
Dizziness: 3 people, 12.50%

* Approximation only. Some reports may have incomplete information.

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