Halcion and Atrial fibrillation/flutter - a phase IV clinical study of FDA data

Summary:

Atrial fibrillation/flutter is reported as a side effect among people who take Halcion (triazolam), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Lasix, and have Rheumatoid arthritis.

The phase IV clinical study analyzes which people have Atrial fibrillation/flutter when taking Halcion. It is created by eHealthMe based on reports of 8,113 people who have side effects when taking Halcion from the FDA, and is updated regularly.

What is Halcion?

Halcion has active ingredients of triazolam. It is often used in insomnia. eHealthMe is studying from 8,268 Halcion users. Check the latest studies of Halcion.

What is Atrial fibrillation/flutter?

Atrial fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles) is found to be associated with 2,364 drugs and 3,841 conditions by eHealthMe. Check the latest studies of Atrial fibrillation/flutter.

On Jul, 12, 2026

8,113 people reported to have side effects when taking Halcion.
Among them, 86 people (1.06%) have Atrial fibrillation/flutter.

Could Halcion cause Atrial fibrillation/flutter?

Among these 86 people:

How long have people been on Halcion when they have Atrial fibrillation/flutter? *

What is the gender of people who have Atrial fibrillation/flutter when taking Halcion? *

female: 60.26 %
male: 39.74 %

What is the age of people who have Atrial fibrillation/flutter when taking Halcion? *

What are other drugs people take besides Halcion? *

What are other side effects people have besides Atrial fibrillation/flutter? *

Weakness: 22 people, 25.58%
Pleural Effusion (water on the lungs): 17 people, 19.77%
Osteomyelitis (infection of bone): 16 people, 18.60%
Granuloma (a small area of inflammation due to tissue injury): 16 people, 18.60%
Pain: 16 people, 18.60%
Metastases To Bone (cancer spreads to bone): 16 people, 18.60%
Primary Sequestrum (piece of dead bone that has become separated during the process of necrosis from normal/sound bone): 15 people, 17.44%
Hypokalemia (low potassium): 15 people, 17.44%
Pulmonary Embolism (blockage of the main artery of the lung): 14 people, 16.28%
Oedema Peripheral (superficial swelling): 13 people, 15.12%

What are the existing conditions these people have? *

Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 14 people, 16.28%
High Blood Pressure: 9 people, 10.47%
Cardiac Failure: 8 people, 9.30%
Pain: 7 people, 8.14%
Osteoporosis (bones weak and more likely to break): 4 people, 4.65%
Constipation: 4 people, 4.65%
Hyperuricaemia (level of uric acid in the blood that is abnormally high): 4 people, 4.65%
Diabetes: 4 people, 4.65%
Dizziness: 3 people, 3.49%
Neuropathy Peripheral (surface nerve damage): 3 people, 3.49%

* Approximation only. Some reports may have incomplete information.

Do you take Halcion and have Atrial fibrillation/flutter?

- Check whether Atrial fibrillation/flutter 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 Halcion:

Halcion (8,268 reports)

Browse all side effects of Halcion:

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 Atrial fibrillation/flutter:

Atrial fibrillation/flutter (2,364 drugs)

Browse all the conditions that are associated with Atrial fibrillation/flutter:

Atrial fibrillation/flutter (3,841 conditions)

How the study uses the data?

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