Flomax and Vancomycin drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Flomax (tamsulosin hydrochloride) and Vancomycin (vancomycin). Common drug interactions include influenza like illness among females and renal failure among males.

The phase IV clinical study analyzes what interactions people have when they take Flomax and Vancomycin. It is created by eHealthMe based on reports of 57 people who take the same drugs from the FDA, and is updated regularly.

What is Flomax?

Flomax has active ingredients of tamsulosin hydrochloride. It is often used in enlarged prostate. eHealthMe is studying from 52,865 Flomax users. Check the latest studies of Flomax.

What is Vancomycin?

Vancomycin has active ingredients of vancomycin. eHealthMe is studying from 17,165 Vancomycin users. Check the latest studies of Vancomycin.

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 Sep, 02, 2026

57 people who take Flomax and Vancomycin together, and have interactions are studied.

Flomax and Vancomycin drug interactions.

What are the common drug interactions of Flomax and Vancomycin, by gender? *:

female:

Influenza like illness
Chronic kidney disease
Febrile neutropenia (fever with reduced white blood cells)
Injection site bruising
Injection site pain
Nephrogenic anaemia (anaemia due to kidney disease)
Rash
Renal failure (kidney dysfunction)
Streptococcal infection
Urinary tract infection

male:

Renal failure (kidney dysfunction)
Chronic kidney disease
Device related infection
Nephrogenic anaemia (anaemia due to kidney disease)
Renal impairment (severely reduced kidney function)
Tooth loss
Osteonecrosis (death of bone)
Bone loss
Depression
Febrile neutropenia (fever with reduced white blood cells)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure)
Enanthema (rash formed inside the body)
Rash
Stevens-johnson syndrome (an immune-complex-mediated hypersensitivity disorder. it ranges from mild skin and mucous membrane lesions to a severe)
Toxic epidermal necrolysis (a rare, life-threatening skin condition that is usually caused by a reaction to drugs causes wide spread skin destruction)

30-39:

Bone density decreased
Osteopenia (a condition where bone mineral density is lower than normal)
Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Bone loss
Depression
Emotional distress
Foot fracture
Hand fracture
Mobility decreased (ability to move is reduced)

40-49:

Chronic kidney disease
Renal failure (kidney dysfunction)
Emotional distress
Pain
Ankle fracture
Multiple fractures
Tibia fracture (fracture of lower leg bone)
Bone density decreased
Tooth loss
Anhedonia (inability to experience pleasure from activities usually found enjoyable)

50-59:

Intervertebral disc degeneration (spinal disc degeneration)
Metabolic acidosis (body produces too much acid, or when the kidneys are not removing enough acid from the body)
Nephropathy (damage to or disease of a kidney)
Osteonecrosis (death of bone)
Renal impairment (severely reduced kidney function)
Renal tubular necrosis (death of kidney tubules)
Allergy to animal
Anaemia (lack of blood)
Bone loss
Cerebral haemorrhage (bleeding within the brain)

60+:

Chronic kidney disease
Device related infection
Cytokine release syndrome (immediate complication occurring with the use of anti-t cell antibody infusions)
Pain
Sepsis (a severe blood infection that can lead to organ failure and death)
Diarrhoea
Platelet count decreased
Pyrexia (fever)
Amnesia (deficit in memory caused by brain damage, disease, or psychological trauma)
Anal abscess

What are the existing conditions these people have? *

Hiv Infection: 21 people, 36.84%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 12 people, 21.05%
Pain: 10 people, 17.54%
Diabetes: 8 people, 14.04%
Nausea (feeling of having an urge to vomit): 8 people, 14.04%
High Blood Pressure: 8 people, 14.04%
Hyperlipidaemia (presence of excess lipids in the blood): 6 people, 10.53%
Infection: 5 people, 8.77%
Diarrhea: 5 people, 8.77%
High Blood Cholesterol: 5 people, 8.77%

* Approximation only. Some reports may have incomplete information.

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