Sustiva and Anaphylaxis - a phase IV clinical study of FDA data

Summary:

Anaphylaxis is reported as a side effect among people who take Sustiva (efavirenz), especially for people who are male, 60+ old, have been taking the drug for 1 - 6 months also take Isentress, and have Asthma.

The phase IV clinical study analyzes which people have Anaphylaxis when taking Sustiva. It is created by eHealthMe based on reports of 10,977 people who have side effects when taking Sustiva from the FDA, and is updated regularly.

What is Sustiva?

Sustiva has active ingredients of efavirenz. It is often used in hiv infection. eHealthMe is studying from 11,040 Sustiva users. Check the latest studies of Sustiva.

What is Anaphylaxis?

Anaphylaxis (serious allergic reaction that is rapid in onset and may cause death) is found to be associated with 1,940 drugs and 2,856 conditions by eHealthMe. Check the latest studies of Anaphylaxis.



On Jul, 17, 2026

10,977 people reported to have side effects when taking Sustiva.
Among them, 21 people (0.19%) have Anaphylaxis.

Could Sustiva cause Anaphylaxis?

Among these 21 people:

How long have people been on Sustiva when they have Anaphylaxis? *

  • < 1 month: 0.0 %
  • 1 - 6 months: 100 %
  • 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 Anaphylaxis when taking Sustiva? *

  • female: 38.1 %
  • male: 61.9 %

What is the age of people who have Anaphylaxis when taking Sustiva? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 5.56 %
  • 30-39: 0.0 %
  • 40-49: 27.78 %
  • 50-59: 33.33 %
  • 60+: 33.33 %

What are other drugs people take besides Sustiva? *

  1. Isentress: 7 people, 33.33%
  2. Ziagen: 6 people, 28.57%
  3. Advair Diskus 100/50: 5 people, 23.81%
  4. Epivir: 5 people, 23.81%
  5. Singulair: 4 people, 19.05%
  6. Nevirapine: 4 people, 19.05%
  7. Prezista: 4 people, 19.05%
  8. Reyataz: 4 people, 19.05%
  9. Norvir: 4 people, 19.05%
  10. Videx: 4 people, 19.05%

What are other side effects people have besides Anaphylaxis? *

  1. Weight Decreased: 4 people, 19.05%
  2. Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets): 4 people, 19.05%
  3. Castleman's Disease (a disease of lymph nodes and related tissues): 4 people, 19.05%
  4. Drug Resistance (reduction in effectiveness of a drug): 4 people, 19.05%
  5. Generalised Erythema (redness of the skin all over the body): 4 people, 19.05%
  6. Weakness: 4 people, 19.05%
  7. Acute Generalised Exanthematous Pustulosis (acute febrile drug eruption): 4 people, 19.05%
  8. Cardiac Arrest: 3 people, 14.29%
  9. Malaise (a feeling of general discomfort or uneasiness): 2 people, 9.52%
  10. Nausea (feeling of having an urge to vomit): 2 people, 9.52%

What are the existing conditions these people have? *

  1. Hiv Test Positive: 3 people, 14.29%
  2. Hepatic Neoplasm Malignant (liver cancer): 3 people, 14.29%
  3. Bronchitis (inflammation of the mucous membrane in the bronchial tubes): 3 people, 14.29%
  4. Asthma: 3 people, 14.29%
  5. Acquired Immunodeficiency Syndrome (disease of the human immune system caused by the human immunodeficiency virus (hiv)): 2 people, 9.52%
  6. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 1 person, 4.76%

* Approximation only. Some reports may have incomplete information.

Do you take Sustiva and have Anaphylaxis?

- Check whether Anaphylaxis is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Sustiva:

Anaphylaxis treatments and more:

How severe was Anaphylaxis and when was it recovered:

Expand to all the drugs that have ingredients of efavirenz:

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 Sustiva:

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 Anaphylaxis:

Browse all the conditions that are associated with Anaphylaxis:

Related publications that referenced our studies


How the study uses the data?

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