Flomax and Activated partial thromboplastin time prolonged - a phase IV clinical study of FDA data

Summary:

Activated partial thromboplastin time prolonged is reported as a side effect among people who take Flomax (tamsulosin hydrochloride), especially for people who are male, 60+ old, also take Lasix, and have Atrial fibrillation/flutter.

The phase IV clinical study analyzes which people have Activated partial thromboplastin time prolonged 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 Activated partial thromboplastin time prolonged?

Activated partial thromboplastin time prolonged is found to be associated with 758 drugs and 1,211 conditions by eHealthMe. Check the latest studies of Activated partial thromboplastin time prolonged.

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, 21, 2026

50,469 people reported to have side effects when taking Flomax.
Among them, 27 people (0.05%) have Activated partial thromboplastin time prolonged.

Could Flomax cause Activated partial thromboplastin time prolonged?

Among these 27 people:

What is the gender of people who have Activated partial thromboplastin time prolonged when taking Flomax? *

female: 0.0 %
male: 100 %

What is the age of people who have Activated partial thromboplastin time prolonged when taking Flomax? *

What are other drugs people take besides Flomax? *

What are other side effects people have besides Activated partial thromboplastin time prolonged? *

Acute Kidney Failure: 11 people, 40.74%
Haematocrit Decreased: 8 people, 29.63%
High Blood Pressure: 8 people, 29.63%
Hyperkalemia (damage to or disease of the kidney): 8 people, 29.63%
Dyspnea (difficult or laboured breathing): 7 people, 25.93%
Thrombocytopenia (decrease of platelets in blood): 7 people, 25.93%
International Normalised Ratio Increased: 7 people, 25.93%
Blood Urea Increased: 6 people, 22.22%
Pleural Effusion (water on the lungs): 6 people, 22.22%
Aspartate Aminotransferase Increased: 6 people, 22.22%

What are the existing conditions these people have? *

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): 5 people, 18.52%
Hypogonadism Male (male testes produce little or no sex hormone): 3 people, 11.11%
Pain: 3 people, 11.11%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 7.41%
Stroke (sudden death of a portion of the brain cells due to a lack of oxygen): 2 people, 7.41%
Idiopathic Thrombocytopenic Purpura (bleeding disorder in which the immune system destroys platelets, which are necessary for normal blood clotting): 2 people, 7.41%
Bleeding Disorders: 1 person, 3.70%
Chest Pain: 1 person, 3.70%
Chronic Left Ventricular Failure (long lasting functional impairment of left ventricle of heart): 1 person, 3.70%
Enterococcal Infection: 1 person, 3.70%

* Approximation only. Some reports may have incomplete information.

Do you take Flomax and have Activated partial thromboplastin time prolonged?

- Check whether Activated partial thromboplastin time prolonged is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

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

Flomax (52,865 reports)

Activated partial thromboplastin time prolonged treatments and more:

Activated partial thromboplastin time prolonged (8,799 reports)

How severe was Activated partial thromboplastin time prolonged and when was it recovered:

Activated partial thromboplastin time prolonged in Flomax

Expand to all the drugs that have ingredients of tamsulosin hydrochloride:

Activated partial thromboplastin time prolonged and drugs with ingredients of tamsulosin hydrochloride (92 reports)

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

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 Activated partial thromboplastin time prolonged:

Activated partial thromboplastin time prolonged (758 drugs)

Browse all the conditions that are associated with Activated partial thromboplastin time prolonged:

Activated partial thromboplastin time prolonged (1,211 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.