Fentanyl and Pelvic venous thrombosis - a phase IV clinical study of FDA data


Pelvic venous thrombosis is found among people who take Fentanyl, especially for people who are 20-29 old, have been taking the drug for < 1 month.

The phase IV clinical study analyzes which people take Fentanyl and have Pelvic venous thrombosis. It is created by eHealthMe based on reports of 67,064 people who have side effects when taking Fentanyl from the FDA, and is updated regularly. You can use the study as a second opinion to make health care decisions.

Phase IV trials are used to detect adverse drug outcomes and monitor drug effectiveness in the real world. With medical big data and AI algorithms, eHealthMe is running millions of phase IV trials and makes the results available to the public. Our original studies have been referenced on 600+ medical publications including The Lancet, Mayo Clinic Proceedings, and Nature.

On Aug, 17, 2022

67,064 people reported to have side effects when taking Fentanyl.
Among them, 10 people (0.01%) have Pelvic venous thrombosis.

What is Fentanyl?

Fentanyl has active ingredients of fentanyl citrate. It is often used in pain. eHealthMe is studying from 66,556 Fentanyl users for its effectiveness, alternative drugs and more.

What is Pelvic venous thrombosis?

Pelvic venous thrombosis (blood clot occurring inside a blood vessel and thromboses (dvts) that form in the deep veins of the legs or in the pelvic veins) is found to be associated with 493 drugs and 320 conditions by eHealthMe.

Number of Fentanyl and Pelvic venous thrombosis reports submitted per year:

Could Fentanyl cause Pelvic venous thrombosis?

Time on Fentanyl when people have Pelvic venous thrombosis *:

  • < 1 month: 100 %
  • 1 - 6 months: 0.0 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

Age of people who have Pelvic venous thrombosis when taking Fentanyl *:

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 11.11 %
  • 20-29: 44.44 %
  • 30-39: 0.0 %
  • 40-49: 22.22 %
  • 50-59: 11.11 %
  • 60+: 11.11 %

Common drugs people take besides Fentanyl *:

  1. Yaz: 5 people, 50.00%
  2. Yasmin: 5 people, 50.00%
  3. Morphine: 5 people, 50.00%
  4. Dilaudid: 5 people, 50.00%
  5. Zofran: 4 people, 40.00%
  6. Klonopin: 3 people, 30.00%
  7. Percocet: 3 people, 30.00%
  8. Colace: 3 people, 30.00%
  9. Zyrtec: 2 people, 20.00%
  10. Catapres: 2 people, 20.00%

Common side effects people have besides Pelvic venous thrombosis *:

  1. Pulmonary Embolism (blockage of the main artery of the lung): 7 people, 70.00%
  2. Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 7 people, 70.00%
  3. Vena Cava Thrombosis (clotting of the blood in large vein carrying deoxygenated blood into the heart): 3 people, 30.00%
  4. Injury: 3 people, 30.00%
  5. Thrombophlebitis Superficial (swelling (inflammation) of a superficial vein caused by a blood clot): 2 people, 20.00%
  6. Memory Loss: 2 people, 20.00%
  7. Confusional State: 2 people, 20.00%
  8. Visual Impairment: 1 person, 10.00%
  9. Fainting (loss of consciousness and postural tone): 1 person, 10.00%
  10. Hemiplegia (paralysis of one side of the body): 1 person, 10.00%

Common conditions people have *:

  1. Birth Control: 2 people, 20.00%
  2. Polycystic Ovary Disease (cysts in the ovaries that occurs when the follicle stops developing): 2 people, 20.00%
  3. Menstruation Irregular: 2 people, 20.00%
  4. Vitamin B12 Deficiency: 1 person, 10.00%
  5. Dry Eyes (lack of adequate tears): 1 person, 10.00%
  6. Anaemia (lack of blood): 1 person, 10.00%
  7. 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): 1 person, 10.00%
  8. Bradycardia (abnormally slow heart action): 1 person, 10.00%
  9. Candida Sepsis (candida in blood stream): 1 person, 10.00%
  10. Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 1 person, 10.00%

* Approximation only. Some reports may have incomplete information.

Do you take Fentanyl and have Pelvic venous thrombosis?

Check whether Pelvic venous thrombosis is associated with a drug or a condition

How to use the study?

You can discuss the study with your doctor, to ensure that all drug risks and benefits are fully discussed and understood.

Related studies

How severe was Pelvic venous thrombosis and when was it recovered:

Expand to all the drugs that have ingredients of fentanyl citrate:

Alternative drugs to, pros and cons of Fentanyl:

Common Fentanyl side effects:

Browse all side effects of Fentanyl:

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

Pelvic venous thrombosis treatments and more:

COVID vaccines that are related to Pelvic venous thrombosis:

Common drugs associated with Pelvic venous thrombosis:

All the drugs that are associated with Pelvic venous thrombosis:

Common conditions associated with Pelvic venous thrombosis:

All the conditions that are associated with Pelvic venous thrombosis:

How the study uses the data?

The study uses data from the FDA. It is based on fentanyl citrate (the active ingredients of Fentanyl) and Fentanyl (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.

Who is eHealthMe?

With medical big data and proven AI 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 600+ 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: 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.

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