Welchol and Combivent drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Welchol (colesevelam hydrochloride) and Combivent (albuterol sulfate; ipratropium bromide). Common drug interactions include renal failure among females and dyspnoea among males.

The phase IV clinical study analyzes what interactions people have when they take Welchol and Combivent. It is created by eHealthMe based on reports of 75 people who take the same drugs from the FDA, and is updated regularly.

What is Welchol?

Welchol has active ingredients of colesevelam hydrochloride. It is often used in high blood cholesterol. eHealthMe is studying from 11,309 Welchol users. Check the latest studies of Welchol.

What is Combivent?

Combivent has active ingredients of albuterol sulfate; ipratropium bromide. It is often used in asthma. eHealthMe is studying from 35,341 Combivent users. Check the latest studies of Combivent.

On Jul, 12, 2026

75 people who take Welchol and Combivent together, and have interactions are studied.

Welchol and Combivent drug interactions.

What are the common drug interactions of Welchol and Combivent, by gender? *:

female:

Renal failure (kidney dysfunction)
Abdominal pain
Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Depression
Gastrointestinal haemorrhage (bleeding gastrointestinal tract)
Hypoxia (low oxygen in tissues)
Urinary tract infection
Wheezing (a high-pitched whistling sound made while you breath)
Bone pain
Cardiac failure congestive

male:

Dyspnoea (difficult or laboured respiration)
Cardiac disorder
Oesophageal disorder (disease of oesophagus)
Nausea (feeling of having an urge to vomit)
Disability
Pelvic fracture
Upper gastrointestinal haemorrhage (upper gastrointestinal bleeding)
Fall
Myalgia (muscle pain)
Allergic sinusitis

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

0-1:

n/a

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:

n/a

40-49:

Dyspnoea (difficult or laboured respiration)
Gastrointestinal haemorrhage (bleeding gastrointestinal tract)
Muscle spasms (muscle contraction)
Oedema (fluid collection in tissue)
Osteoarthritis (a joint disease caused by cartilage loss in a joint)
Pneumonia
Renal failure acute (rapid kidney dysfunction)
Rhabdomyolysis (a condition in which damaged skeletal muscle tissue breaks down)
Urinary tract infection

50-59:

Cervical radiculopathy (disturbance of nerve function that causes pain in the upper body)
Chest pain
Confusional state
Cystitis (inflammation of the wall of the bladder)
Cytomegalovirus infection
Depression
Dermatitis (inflammation of the skin resulting from direct irritation by an external agent or an allergic reaction to it)
Diverticulum (out pouching of a hollow (or a fluid-filled) structure in the body)
Dizziness
Emphysema (chronic respiratory disease - over inflation of the air sacs (alveoli) in the lungs)

60+:

Rash
Balance disorder
Chest pain
Haemorrhagic anaemia (anaemia due to excessive bleeding)
Chronic kidney disease
Drug ineffective
Nephrogenic anaemia (anaemia due to kidney disease)
Cardiac failure congestive
Constipation
Gastrointestinal haemorrhage (bleeding gastrointestinal tract)

What are the existing conditions these people have? *

Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 12 people, 16.00%
Cardiac Disorder: 11 people, 14.67%
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): 11 people, 14.67%
Diabetes: 10 people, 13.33%
Nausea (feeling of having an urge to vomit): 10 people, 13.33%
Blood Pressure Abnormal: 9 people, 12.00%
Chest Pain: 9 people, 12.00%
Stroke (sudden death of a portion of the brain cells due to a lack of oxygen): 9 people, 12.00%
Stress And Anxiety: 9 people, 12.00%
Fluid Retention (an abnormal accumulation of fluid in the blood): 9 people, 12.00%

* Approximation only. Some reports may have incomplete information.

Do you take Welchol and Combivent?

- 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