Halcion and Formication - a phase IV clinical study of FDA data

Summary:

Formication is reported as a side effect among people who take Halcion (triazolam), especially for people who are female, 50-59 old, also take Lyrica, and have Pain.

The phase IV clinical study analyzes which people have Formication 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 Formication?

Formication (a sensation that exactly resembles that of small insects crawling on (or under) the skin) is found to be associated with 559 drugs and 917 conditions by eHealthMe. Check the latest studies of Formication.

On Feb, 04, 2026

8,113 people reported to have side effects when taking Halcion.
Among them, 9 people (0.11%) have Formication.

Among these 9 people:

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

female: 100 %
male: 0.0 %

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

What are other drugs people take besides Halcion? *

What are other side effects people have besides Formication? *

Abdominal Pain Upper: 8 people, 88.89%
Pain In Extremity: 7 people, 77.78%
Chills (felling of cold): 7 people, 77.78%
Itching: 7 people, 77.78%
Back Pain: 7 people, 77.78%
Gait Disturbance: 7 people, 77.78%
Appetite - Decreased (decreased appetite occurs when you have a reduced desire to eat): 7 people, 77.78%
Pain: 7 people, 77.78%
Withdrawal Syndrome (a discontinuation syndrome is a set of symptoms occurred due to discontinuation of substance): 6 people, 66.67%
Chondropathy (disease of the cartilage): 6 people, 66.67%

What are the existing conditions these people have? *

Pain: 7 people, 77.78%
Intervertebral Disc Degeneration (spinal disc degeneration): 6 people, 66.67%
Spinal Pain (pain in spine): 6 people, 66.67%
Spinal Disorder (disease of spine a back bone): 6 people, 66.67%
Scoliosis (a medical condition in which a person's spine is curved from side to side): 6 people, 66.67%
Fibromyalgia (a long-term condition which causes pain all over the body): 6 people, 66.67%
High Blood Pressure: 6 people, 66.67%
Osteoarthritis (a joint disease caused by cartilage loss in a joint): 6 people, 66.67%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 6 people, 66.67%
Muscle Spasms (muscle contraction): 6 people, 66.67%

* Approximation only. Some reports may have incomplete information.

Do you take Halcion and have Formication?

- Check whether Formication 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)

Formication treatments and more:

Formication (8,246 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 Formication:

Formication (559 drugs)

Browse all the conditions that are associated with Formication:

Formication (917 conditions)

Drugs similar to Halcion and Formication :

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.