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

Summary:

Drug interactions are reported among people who take Questran (cholestyramine) and Proair hfa (albuterol sulfate). Common drug interactions include hair colour changes among females and drug hypersensitivity among males.

The phase IV clinical study analyzes what interactions people have when they take Questran and Proair hfa. It is created by eHealthMe based on reports of 32 people who take the same drugs 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 Proair hfa?

Proair hfa has active ingredients of albuterol sulfate. It is often used in asthma. eHealthMe is studying from 53,227 Proair hfa users. Check the latest studies of Proair hfa.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 16, 2026

32 people who take Questran and Proair hfa together, and have interactions are studied.

Questran and Proair hfa drug interactions.

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

female:

Hair colour changes
Hair disorder
Hearing impaired
Heart rate increased
Hyperlipidaemia (presence of excess lipids in the blood)
Hypersomnia (excessive daytime sleepiness (eds))
Hypertension (high blood pressure)
Hypertriglyceridaemia (excess of triglycerides in the blood)
Hypoaesthesia (reduced sense of touch or sensation)
Hypoperfusion (decreased blood flow through an organ)

male:

Drug hypersensitivity
Dysphemia (stammering or stuttering)
Dysphonia (speech disorder attributable to a disorder of phonation)
Dyspnoea exertional (breathlessness or shortness of breath)
Emotional distress
Foetal exposure during pregnancy (exposing your unborn child to contraindicated in pregnancy leads birth defect)
Glossodynia (a burning or painful sensation in the tongue)
Hyperglycaemia (high blood sugar)
Hyponatraemia (abnormally low level of sodium in the blood; associated with dehydration)
Injection site swelling

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

0-1:

Anaphylactic reaction (serious allergic reaction)

2-9:

n/a

10-19:

Petit mal epilepsy (absence seizure)
Syncope (loss of consciousness with an inability to maintain postural tone)

20-29:

n/a

30-39:

Abdominal pain upper
Blood pressure increased
Body temperature decreased
Chronic sinusitis (long lasting inflammation of the paranasal sinuses)
Cystic fibrosis (disease of the secretary glands)
Decreased appetite
Distal intestinal obstruction syndrome (blockage of the intestines by thickened stool and occurs in individuals with cystic fibrosis)
Dizziness
Forced expiratory volume decreased (decreased lung expired air volume)
Haematocrit decreased

40-49:

Chronic kidney disease
Renal failure (kidney dysfunction)
Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Emotional distress
Pain

50-59:

Musculoskeletal pain (pain affects the bones, muscles, ligaments, tendons, and nerves)
Myalgia (muscle pain)
Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)
Myocardial ischaemia (the blood flow through one or more of the blood vessels that lead to heart (coronary arteries) is decreased)
Neck pain
Neoplasm (tumour)
Neuralgia (pain in one or more nerves)
Obesity (having too much body fat)
Osteoarthritis (a joint disease caused by cartilage loss in a joint)
Ovarian adhesion (bands of scar-like tissue that form between ovary and nearby organ)

60+:

Coagulopathy (blood's ability to clot is impaired)
Asthenia (weakness)
Depression
Fluid retention (an abnormal accumulation of fluid in the blood)
Foetal exposure during pregnancy (exposing your unborn child to contraindicated in pregnancy leads birth defect)
Glossodynia (a burning or painful sensation in the tongue)
Hair colour changes
Hair disorder
Hyperglycaemia (high blood sugar)
Hypersensitivity

What are the existing conditions these people have? *

Wheezing (a high-pitched whistling sound made while you breath): 6 people, 18.75%
Pain: 4 people, 12.50%
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, 12.50%
Stress And Anxiety: 3 people, 9.38%
Inflammatory Bowel Disease: 3 people, 9.38%
Hypersensitivity: 3 people, 9.38%
Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 3 people, 9.38%
Nausea (feeling of having an urge to vomit): 2 people, 6.25%
Multiple Myeloma (cancer of the plasma cells): 2 people, 6.25%
Eczema (patches of skin become rough and inflamed, with itching and bleeding blisters): 2 people, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Questran and Proair hfa?

- Personalize this study to your gender, age, symptoms and drugs
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously