Besremi and Splenomegaly - a phase IV clinical study of FDA data

Summary:

Splenomegaly is reported as a side effect among people who take Besremi (ropeginterferon alfa-2b-njft), especially for people who are male, also take Aspirin, and have Polycythaemia vera.

The phase IV clinical study analyzes which people have Splenomegaly when taking Besremi. It is created by eHealthMe based on reports of 2,586 people who have side effects when taking Besremi from the FDA, and is updated regularly.

What is Besremi?

Besremi has active ingredients of ropeginterferon alfa-2b-njft. eHealthMe is studying from 2,586 Besremi users. Check the latest studies of Besremi.

What is Splenomegaly?

Splenomegaly (enlargement of spleen) is found to be associated with 1,104 drugs and 1,477 conditions by eHealthMe. Check the latest studies of Splenomegaly.

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, 01, 2026

2,586 people reported to have side effects when taking Besremi.
Among them, 23 people (0.89%) have Splenomegaly.

Could Besremi cause Splenomegaly?

Among these 23 people:

What is the gender of people who have Splenomegaly when taking Besremi? *

  • female: 33.33 %
  • male: 66.67 %

What are other drugs people take besides Besremi? *

  1. Aspirin: 8 people, 34.78%
  2. Allopurinol: 6 people, 26.09%
  3. Vitamins: 3 people, 13.04%
  4. Lisinopril: 3 people, 13.04%
  5. Cartia Xt: 3 people, 13.04%
  6. Claritin: 3 people, 13.04%
  7. Hydroxyurea: 3 people, 13.04%
  8. Jakafi: 3 people, 13.04%
  9. Albuterol: 3 people, 13.04%
  10. Myrbetriq: 3 people, 13.04%

What are other side effects people have besides Splenomegaly? *

  1. Nausea (feeling of having an urge to vomit): 10 people, 43.48%
  2. Fatigue (feeling of tiredness): 8 people, 34.78%
  3. Laboratory Test Abnormal: 7 people, 30.43%
  4. White Blood Cell Count Increased: 6 people, 26.09%
  5. Red Blood Cell Count Decreased: 6 people, 26.09%
  6. Abdominal Pain: 6 people, 26.09%
  7. Musculoskeletal Discomfort (discomfort in the body's muscles, joints, tendons, ligaments and nerves): 6 people, 26.09%
  8. Rashes (redness): 6 people, 26.09%
  9. Malaise (a feeling of general discomfort or uneasiness): 5 people, 21.74%
  10. Influenza Like Illness: 5 people, 21.74%

What are the existing conditions these people have? *

  1. Polycythaemia Vera (blood disorder in which the bone marrow makes too many red blood cells): 22 people, 95.65%
  2. Thyroid Diseases: 3 people, 13.04%
  3. Hypertonic Bladder (bladder-storage function that causes a sudden urge to urinate): 3 people, 13.04%
  4. High Blood Pressure: 3 people, 13.04%
  5. High Blood Cholesterol: 3 people, 13.04%
  6. Cough: 3 people, 13.04%
  7. Asthma: 3 people, 13.04%
  8. Anaemia (lack of blood): 3 people, 13.04%
  9. Adult T-Cell Lymphoma/leukaemia (cancer of the immune system's own t-cells): 1 person, 4.35%

* Approximation only. Some reports may have incomplete information.

Do you take Besremi and have Splenomegaly?

- Check whether Splenomegaly 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 Besremi:

Splenomegaly treatments and more:

How severe was Splenomegaly and when was it recovered:

Expand to all the drugs that have ingredients of ropeginterferon alfa-2b-njft:

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 Besremi:

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 Splenomegaly:

Browse all the conditions that are associated with Splenomegaly:


How the study uses the data?

The study uses data from the FDA. It is based on ropeginterferon alfa-2b-njft (the active ingredients of Besremi) and Besremi (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.



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