Acetylcysteine and Bronchiectasis - a phase IV clinical study of FDA data

Summary:

Bronchiectasis is reported as a side effect among people who take Acetylcysteine (acetylcysteine), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Melatonin, and have Asthma.

The phase IV clinical study analyzes which people have Bronchiectasis when taking Acetylcysteine. It is created by eHealthMe based on reports of 11,475 people who have side effects when taking Acetylcysteine from the FDA, and is updated regularly.

What is Acetylcysteine?

Acetylcysteine has active ingredients of acetylcysteine. It is often used in cough. eHealthMe is studying from 11,563 Acetylcysteine users. Check the latest studies of Acetylcysteine.

What is Bronchiectasis?

Bronchiectasis (abnormal widening of the bronchi or their branches, causing a risk of infection) is found to be associated with 783 drugs and 858 conditions by eHealthMe. Check the latest studies of Bronchiectasis.

On May, 13, 2026

11,475 people reported to have side effects when taking Acetylcysteine.
Among them, 216 people (1.88%) have Bronchiectasis.

Could Acetylcysteine cause Bronchiectasis?

Among these 216 people:

How long have people been on Acetylcysteine when they have Bronchiectasis? *

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What is the gender of people who have Bronchiectasis when taking Acetylcysteine? *

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* Approximation only. Some reports may have incomplete information.

Do you take Acetylcysteine and have Bronchiectasis?

- Check whether Bronchiectasis 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 Acetylcysteine:

Acetylcysteine (11,563 reports)

Bronchiectasis treatments and more:

Bronchiectasis (12,460 reports)

How severe was Bronchiectasis and when was it recovered:

Bronchiectasis in Acetylcysteine

Expand to all the drugs that have ingredients of acetylcysteine:

Bronchiectasis and drugs with ingredients of acetylcysteine (223 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 Acetylcysteine:

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 Bronchiectasis:

Bronchiectasis (783 drugs)

Browse all the conditions that are associated with Bronchiectasis:

Bronchiectasis (858 conditions)

Related publications that referenced our studies

Lee JK, Lee J, Park SS, Heo EY, Park YS, Lee CH, Lee SM, Yoon HI, Yim JJ, Yoo CG, Chung HS, "Effect of inhalers on the development of haemoptysis in patients with non-cystic fibrosis bronchiectasis", The International Journal of Tuberculosis and Lung Disease, 2014 Mar .
Lee JK, Lee J, Park SS, Heo EY, Park YS, Lee CH, Lee SM, Yoon HI, Yim JJ, Yoo CG, Chung HS, "Effect of inhalers on the development of haemoptysis in patients with non-cystic fibrosis bronchiectasis", The International Journal of Tuberculosis and Lung Disease, 2014 Mar .

How the study uses the data?

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