Halcion and Breast cancer - a phase IV clinical study of FDA data

Summary:

Breast cancer is reported as a side effect among people who take Halcion (triazolam), especially for people who are female, 60+ old, also take Estraderm, and have High blood pressure.

The phase IV clinical study analyzes which people have Breast cancer 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 Breast cancer?

Breast cancer is found to be associated with 1,293 drugs and 1,670 conditions by eHealthMe. Check the latest studies of Breast cancer.

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 Sep, 01, 2026

8,113 people reported to have side effects when taking Halcion.
Among them, 12 people (0.15%) have Breast cancer.

Among these 12 people:

What is the gender of people who have Breast cancer when taking Halcion? *

female: 91.67 %
male: 8.33 %

What is the age of people who have Breast cancer when taking Halcion? *

What are other drugs people take besides Halcion? *

What are other side effects people have besides Breast cancer? *

Pain: 3 people, 25.00%
Stress And Anxiety: 3 people, 25.00%
Coronary Heart Disease (narrowing or blockage of the coronary arteries): 3 people, 25.00%
Fibromyalgia (a long-term condition which causes pain all over the body): 3 people, 25.00%
Psychiatric Symptom: 2 people, 16.67%
Fear Of Disease: 2 people, 16.67%
Feeling Abnormal: 2 people, 16.67%
Scar: 2 people, 16.67%
Pain In Extremity: 2 people, 16.67%
Biopsy Breast Abnormal: 2 people, 16.67%

What are the existing conditions these people have? *

Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 2 people, 16.67%
High Blood Pressure: 2 people, 16.67%
Osteoporosis (bones weak and more likely to break): 1 person, 8.33%
Hyperlipidaemia (presence of excess lipids in the blood): 1 person, 8.33%
Gastritis (inflammation of stomach): 1 person, 8.33%
Epilepsy (common and diverse set of chronic neurological disorders characterized by seizures): 1 person, 8.33%
Chronic Myeloid Leukaemia (long lasting type of cancer that starts in the blood-forming cells of the bone marrow and invades the blood): 1 person, 8.33%

* Approximation only. Some reports may have incomplete information.

Do you take Halcion and have Breast cancer?

- Check whether Breast cancer 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)

Breast cancer treatments and more:

Breast cancer (266,434 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 Breast cancer:

Breast cancer (1,293 drugs)

Browse all the conditions that are associated with Breast cancer:

Breast cancer (1,670 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.