Avonex and Colonic haemorrhage - a phase IV clinical study of FDA data


Colonic haemorrhage is reported only by a few people who take Avonex.

The phase IV clinical study analyzes which people take Avonex and have Colonic haemorrhage. It is created by eHealthMe based on reports of 193,076 people who have side effects while taking Avonex from the FDA, and is updated regularly.

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, 18, 2022

193,076 people reported to have side effects when taking Avonex.
Among them, 2 people (0.0%) have Colonic haemorrhage.

What is Avonex?

Avonex has active ingredients of interferon beta 1a. It is often used in multiple sclerosis. eHealthMe is studying from 189,921 Avonex users for its effectiveness, alternative drugs and more.

What is Colonic haemorrhage?

Colonic haemorrhage (bleeding in colon) is found to be associated with 260 drugs and 67 conditions by eHealthMe.

Number of Avonex and Colonic haemorrhage reports submitted per year:

Could Avonex cause Colonic haemorrhage?

Gender of people who have Colonic haemorrhage when taking Avonex *:

  • female: 100 %
  • male: 0.0 %

Age of people who have Colonic haemorrhage when taking Avonex *:

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 0.0 %
  • 50-59: 100 %
  • 60+: 0.0 %

Common drugs people take besides Avonex *:

  1. Zyrtec: 1 person, 50.00%
  2. Provigil: 1 person, 50.00%
  3. Paxil: 1 person, 50.00%
  4. Evista: 1 person, 50.00%

Common side effects people have besides Colonic haemorrhage *:

  1. White Blood Cell Count Increased: 1 person, 50.00%
  2. Large Intestinal Ulcer: 1 person, 50.00%
  3. Blood Pressure Immeasurable: 1 person, 50.00%
  4. Colitis Ischaemic (due to infection of intestine impaired blood supply to colon): 1 person, 50.00%
  5. Cough: 1 person, 50.00%
  6. Herpes Simplex (herpes simplex is a common viral infection): 1 person, 50.00%
  7. Hiatal Hernia (hernia resulting from the protrusion of part of the stomach through the diaphragm): 1 person, 50.00%
  8. Hypoaesthesia (reduced sense of touch or sensation): 1 person, 50.00%
  9. Influenza Like Illness: 1 person, 50.00%
  10. Loss Of Consciousness: 1 person, 50.00%

* Approximation only. Some reports may have incomplete information.

Do you take Avonex and have Colonic haemorrhage?

Check whether Colonic haemorrhage 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 Colonic haemorrhage and when was it recovered:

Expand to all the drugs that have ingredients of interferon beta 1a:

Alternative drugs to, pros and cons of Avonex:

Common Avonex side effects:

Browse all side effects of Avonex:

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

Colonic haemorrhage treatments and more:

COVID vaccines that are related to Colonic haemorrhage:

All the drugs that are associated with Colonic haemorrhage:

All the conditions that are associated with Colonic haemorrhage:

How the study uses the data?

The study uses data from the FDA. It is based on interferon beta 1a (the active ingredients of Avonex) and Avonex (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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