Flomax and Fluid intake reduced - a phase IV clinical study of FDA data

Summary:

Fluid intake reduced is reported as a side effect among people who take Flomax (tamsulosin hydrochloride), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Lipitor, and have Chronic lymphocytic leukaemia.

The phase IV clinical study analyzes which people have Fluid intake reduced when taking Flomax. It is created by eHealthMe based on reports of 50,469 people who have side effects when taking Flomax 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 Fluid intake reduced?

Fluid intake reduced is found to be associated with 552 drugs and 624 conditions by eHealthMe. Check the latest studies of Fluid intake reduced.

On Aug, 08, 2026

50,469 people reported to have side effects when taking Flomax.
Among them, 28 people (0.06%) have Fluid intake reduced.

Could Flomax cause Fluid intake reduced?

Among these 28 people:

How long have people been on Flomax when they have Fluid intake reduced? *

What is the gender of people who have Fluid intake reduced when taking Flomax? *

female: 0.0 %
male: 100 %

What is the age of people who have Fluid intake reduced when taking Flomax? *

What are other drugs people take besides Flomax? *

What are other side effects people have besides Fluid intake reduced? *

Weight Decreased: 11 people, 39.29%
Fatigue (feeling of tiredness): 9 people, 32.14%
Appetite - Decreased (decreased appetite occurs when you have a reduced desire to eat): 9 people, 32.14%
Dehydration (dryness resulting from the removal of water): 7 people, 25.00%
Dyspnea (difficult or laboured breathing): 7 people, 25.00%
Joint Pain: 7 people, 25.00%
Malaise (a feeling of general discomfort or uneasiness): 6 people, 21.43%
Constipation: 5 people, 17.86%
Nausea (feeling of having an urge to vomit): 5 people, 17.86%
Dizziness: 5 people, 17.86%

What are the existing conditions these people have? *

Chronic Lymphocytic Leukaemia (cancer in which the bone marrow makes too many lymphocytes (a type of white blood cell)): 5 people, 17.86%
Prostate Cancer: 4 people, 14.29%
Lung Cancer - Non-Small Cell (lung cancer): 3 people, 10.71%
High Blood Pressure: 2 people, 7.14%
Type 2 Diabetes: 2 people, 7.14%
Metastatic Renal Cell Carcinoma (spreadable kidney cell tumour): 2 people, 7.14%
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): 2 people, 7.14%
Stress And Anxiety: 2 people, 7.14%
Pneumonia: 1 person, 3.57%
Pain: 1 person, 3.57%

* Approximation only. Some reports may have incomplete information.

Do you take Flomax and have Fluid intake reduced?

- Check whether Fluid intake reduced is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Flomax:

Flomax (52,865 reports)

Browse all side effects of Flomax:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all the drugs that are associated with Fluid intake reduced:

Fluid intake reduced (552 drugs)

Browse all the conditions that are associated with Fluid intake reduced:

Fluid intake reduced (624 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on tamsulosin hydrochloride (the active ingredients of Flomax) and Flomax (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.