Cytoxan and Obstruction - a phase IV clinical study of FDA data

Summary:

Obstruction is reported as a side effect among people who take Cytoxan (cyclophosphamide), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Glucophage, and have Fungal infection.

The phase IV clinical study analyzes which people have Obstruction when taking Cytoxan. It is created by eHealthMe based on reports of 19,522 people who have side effects when taking Cytoxan from the FDA, and is updated regularly.

What is Cytoxan?

Cytoxan has active ingredients of cyclophosphamide. It is often used in breast cancer. eHealthMe is studying from 19,693 Cytoxan users. Check the latest studies of Cytoxan.

What is Obstruction?

Obstruction is found to be associated with 487 drugs and 631 conditions by eHealthMe. Check the latest studies of Obstruction.



On Apr, 14, 2026

19,522 people reported to have side effects when taking Cytoxan.
Among them, 11 people (0.06%) have Obstruction.

Could Cytoxan cause Obstruction?

Among these 11 people:

How long have people been on Cytoxan when they have Obstruction? *

  • < 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 %

What is the gender of people who have Obstruction when taking Cytoxan? *

  • female: 100 %
  • male: 0.0 %

What is the age of people who have Obstruction when taking Cytoxan? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 12.5 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 0.0 %
  • 50-59: 0.0 %
  • 60+: 87.5 %

What are other drugs people take besides Cytoxan? *

  1. Zometa: 7 people, 63.64%
  2. Oxycontin: 7 people, 63.64%
  3. Ambien: 7 people, 63.64%
  4. Aranesp: 7 people, 63.64%
  5. Aredia: 7 people, 63.64%
  6. Compazine: 7 people, 63.64%
  7. Elocon: 7 people, 63.64%
  8. Exemestane: 7 people, 63.64%
  9. Faslodex: 7 people, 63.64%
  10. Glucophage: 7 people, 63.64%

What are other side effects people have besides Obstruction? *

  1. Weight Decreased: 8 people, 72.73%
  2. Weakness: 8 people, 72.73%
  3. Hepatic Lesion: 7 people, 63.64%
  4. Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 7 people, 63.64%
  5. Dental Fistula: 7 people, 63.64%
  6. Dizziness: 7 people, 63.64%
  7. Flank Pain (a distressing sensation experienced around the lower back and the upper abdomen): 7 people, 63.64%
  8. Fractured Sacrum: 7 people, 63.64%
  9. General Physical Health Deterioration (weak health status): 7 people, 63.64%
  10. Granuloma (a small area of inflammation due to tissue injury): 7 people, 63.64%

What are the existing conditions these people have? *

  1. Fungal Infection: 7 people, 63.64%
  2. Vasculitis (inflammation of a blood vessel or blood vessels): 2 people, 18.18%
  3. Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 1 person, 9.09%
  4. Ovarian Cancer (cancer of ovary): 1 person, 9.09%
  5. Memory Loss: 1 person, 9.09%
  6. Lung Cancer Stage Unspecified (Excl Metastatic Tumors To Lung): 1 person, 9.09%

* Approximation only. Some reports may have incomplete information.

Do you take Cytoxan and have Obstruction?

- Check whether 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 Cytoxan:

Obstruction treatments and more:

How severe was Obstruction and when was it recovered:

Expand to all the drugs that have ingredients of cyclophosphamide:

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 Cytoxan:

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 Obstruction:

Browse all the conditions that are associated with Obstruction:

Related publications that referenced our studies


How the study uses the data?

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