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

Summary:

Drug interactions are reported among people who take Tricor (fenofibrate) and Questran (cholestyramine). Common drug interactions include dehydration among females and myalgia among males.

The phase IV clinical study analyzes what interactions people have when they take Tricor and Questran. It is created by eHealthMe based on reports of 45 people who take the same drugs from the FDA, and is updated regularly.

What is Tricor?

Tricor has active ingredients of fenofibrate. It is often used in high blood cholesterol. eHealthMe is studying from 22,641 Tricor users. Check the latest studies of Tricor.

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, 26, 2026

45 people who take Tricor and Questran together, and have interactions are studied.

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

female:

Dehydration (dryness resulting from the removal of water)
Gastroenteritis (inflammation of stomach and intestine)
Haemoglobin decreased
Hyperglycaemia (high blood sugar)
Hypokalaemia (low potassium)
Malignant melanoma (skin cancer rises from melancytes)
Nephrolithiasis (calculi in the kidneys)
Renal failure acute (rapid kidney dysfunction)
Rhabdomyolysis (a condition in which damaged skeletal muscle tissue breaks down)
Abdominal adhesions (inflammation of abdomen)

male:

Myalgia (muscle pain)
Oedema (fluid collection in tissue)
Joint stiffness
Keratoacanthoma (a common low-grade (unlikely to metastasize or invade) skin tumour that is believed to originate from the neck of the hair follicle)
Nephrogenic systemic fibrosis (involves fibrosis of skin, joints, eyes due to kidney disease)
Pain
Pain in extremity
Rash papular (redness with papule)
Rash pruritic (redness with itching)
Scar

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Abdominal pain
Cholecystitis chronic (long lasting infection of gallbladder)
Constipation
Dyspepsia (indigestion)
Gallbladder disorder
Gallbladder injury
Incision site pain
Nausea (feeling of having an urge to vomit)

30-39:

Abdominal pain upper
Alcoholic pancreatitis
Back injury
Death
Fatigue (feeling of tiredness)
Injection site erythema (redness at injection site)
Injection site mass
Injection site pain
Injection site pruritus (severe itching at injection site)
Myalgia (muscle pain)

40-49:

Alcoholic pancreatitis
Anxiety
Back pain
Chest pain
Dizziness
Hyperhidrosis (abnormally increased sweating)
Hypersensitivity
Malaise (a feeling of general discomfort or uneasiness)
Myalgia (muscle pain)
Oedema (fluid collection in tissue)

50-59:

Dyspnoea (difficult or laboured respiration)
Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
Hyperlipidaemia (presence of excess lipids in the blood)
Abdominal adhesions (inflammation of abdomen)
Abdominal pain upper
Adnexa uteri mass (ovarian cysts)
Amyotrophic lateral sclerosis (nervous system disease that attacks nerve cells called neurons in your brain and spinal cord)
Angina pectoris (chest pain due to ischemia of the heart muscle)
Anxiety
Aortic valve incompetence

60+:

Cyst (a closed sac)
Keratoacanthoma (a common low-grade (unlikely to metastasize or invade) skin tumour that is believed to originate from the neck of the hair follicle)
Fatigue (feeling of tiredness)
Gastroenteritis (inflammation of stomach and intestine)
Haemoglobin decreased
Hypokalaemia (low potassium)
Malignant melanoma (skin cancer rises from melancytes)
Nephrolithiasis (calculi in the kidneys)
Oropharyngeal pain
Pain in extremity

What are the existing conditions these people have? *

Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 14 people, 31.11%
High Blood Pressure: 7 people, 15.56%
Type 2 Diabetes: 5 people, 11.11%
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): 4 people, 8.89%
Peripheral Sensory Neuropathy (damage to one or more of your peripheral nerves): 3 people, 6.67%
Inflammatory Bowel Disease: 3 people, 6.67%
Hyperlipidaemia (presence of excess lipids in the blood): 3 people, 6.67%
Dyslipidaemia (abnormal amount of lipids): 3 people, 6.67%
Chronic Kidney Disease: 3 people, 6.67%

* Approximation only. Some reports may have incomplete information.

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