Avastin and Small intestinal obstruction - a phase IV clinical study of FDA data

Summary:

Small intestinal obstruction is reported as a side effect among people who take Avastin (bevacizumab), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Fluorouracil, and have Colon cancer.

The phase IV clinical study analyzes which people have Small intestinal obstruction when taking Avastin. It is created by eHealthMe based on reports of 75,729 people who have side effects when taking Avastin from the FDA, and is updated regularly.

What is Avastin?

Avastin has active ingredients of bevacizumab. It is often used in high blood cholesterol. eHealthMe is studying from 76,365 Avastin users. Check the latest studies of Avastin.

What is Small intestinal obstruction?

Small intestinal obstruction (blockage in small intestine) is found to be associated with 1,035 drugs and 986 conditions by eHealthMe. Check the latest studies of Small intestinal obstruction.

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, 22, 2026

75,729 people reported to have side effects when taking Avastin.
Among them, 275 people (0.36%) have Small intestinal obstruction.

Could Avastin cause Small intestinal obstruction?

Among these 275 people:

How long have people been on Avastin when they have Small intestinal obstruction? *

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What is the gender of people who have Small intestinal obstruction when taking Avastin? *

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What is the age of people who have Small intestinal obstruction when taking Avastin? *

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* Approximation only. Some reports may have incomplete information.

Do you take Avastin and have Small intestinal obstruction?

- Check whether Small intestinal obstruction 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 Avastin:

Avastin (76,365 reports)

Small intestinal obstruction treatments and more:

Small intestinal obstruction (15,333 reports)

How severe was Small intestinal obstruction and when was it recovered:

Small intestinal obstruction in Avastin

Expand to all the drugs that have ingredients of bevacizumab:

Small intestinal obstruction and drugs with ingredients of bevacizumab (690 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 Avastin:

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 Small intestinal obstruction:

Small intestinal obstruction (1,035 drugs)

Browse all the conditions that are associated with Small intestinal obstruction:

Small intestinal obstruction (986 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on bevacizumab (the active ingredients of Avastin) and Avastin (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.