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

Summary:

Drug interactions are reported among people who take Welchol (colesevelam hydrochloride) and Gentamicin (gentamicin sulfate). Common drug interactions include nephrogenic anaemia among females and gastric disorder among males.

The phase IV clinical study analyzes what interactions people have when they take Welchol and Gentamicin. It is created by eHealthMe based on reports of 20 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 Gentamicin?

Gentamicin has active ingredients of gentamicin sulfate. It is often used in urinary tract infection. eHealthMe is studying from 21,654 Gentamicin users. Check the latest studies of Gentamicin.

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

20 people who take Welchol and Gentamicin together, and have interactions are studied.

Welchol and Gentamicin drug interactions.

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

female:

Nephrogenic anaemia (anaemia due to kidney disease)
Nephrogenic systemic fibrosis (involves fibrosis of skin, joints, eyes due to kidney disease)
Renal failure (kidney dysfunction)
Renal impairment (severely reduced kidney function)
Renal injury (kidney injury)
Tongue paralysis (loss of function of tongue)
Transient ischaemic attack (a transient episode of neurologic dysfunction caused by ischemia (loss of blood flow))
Vertigo
Abscess limb (limb infection)
Acute myocardial infarction (acute heart attack)

male:

Gastric disorder (disease of stomach)
Peritonitis (inflammation of the peritoneum, the thin tissue that lines the inner wall of the abdomen and covers most of the abdominal organs)
Renal failure (kidney dysfunction)
Renal injury (kidney injury)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

Gingival bleeding (bleeding gums)
Maculopathy (a condition or disease of the macula, the small spot in the retina where vision is keenest)

40-49:

Nephrogenic systemic fibrosis (involves fibrosis of skin, joints, eyes due to kidney disease)
Chronic kidney disease
Renal failure (kidney dysfunction)
Renal injury (kidney injury)

50-59:

Chronic kidney disease
Acute myocardial infarction (acute heart attack)
Hyperparathyroidism secondary (an abnormally high concentration of parathyroid hormone in the blood, resulting in weakening of the bones through loss of calcium-secondary)
Metabolic acidosis (body produces too much acid, or when the kidneys are not removing enough acid from the body)
Nephrogenic anaemia (anaemia due to kidney disease)
Nephropathy (damage to or disease of a kidney)
Renal failure (kidney dysfunction)
Renal impairment (severely reduced kidney function)
Renal injury (kidney injury)

60+:

Pneumonia
Cough
Cardiac disorder
Cardiac failure
Carotid artery stenosis (narrowing of carotid artery)
Cellulitis (infection under the skin)
Chronic kidney disease
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe)
Contusion (a type of hematoma of tissue in which capillaries)
Corneal disorder

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): 7 people, 35.00%
Pain: 5 people, 25.00%
Headache (pain in head): 4 people, 20.00%
Weight Decreased: 2 people, 10.00%
Multiple Myeloma (cancer of the plasma cells): 2 people, 10.00%
Cardiac Disorder: 2 people, 10.00%
Diabetes: 2 people, 10.00%
High Blood Pressure: 2 people, 10.00%
Infection: 2 people, 10.00%
Hyperlipidaemia (presence of excess lipids in the blood): 2 people, 10.00%

* Approximation only. Some reports may have incomplete information.

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