Halcion and Haematocrit decreased - a phase IV clinical study of FDA data

Summary:

Haematocrit decreased is reported as a side effect among people who take Halcion (triazolam), especially for people who are male, 60+ old, have been taking the drug for 1 - 6 months also take Norvasc, and have Metastatic renal cell carcinoma.

The phase IV clinical study analyzes which people have Haematocrit decreased 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 Haematocrit decreased?

Haematocrit decreased is found to be associated with 1,625 drugs and 2,400 conditions by eHealthMe. Check the latest studies of Haematocrit decreased.

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 Aug, 27, 2026

8,113 people reported to have side effects when taking Halcion.
Among them, 44 people (0.54%) have Haematocrit decreased.

Could Halcion cause Haematocrit decreased?

Among these 44 people:

How long have people been on Halcion when they have Haematocrit decreased? *

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

female: 38.64 %
male: 61.36 %

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

What are other drugs people take besides Halcion? *

What are other side effects people have besides Haematocrit decreased? *

Haemoglobin Decreased: 33 people, 75.00%
Red Blood Cell Count Decreased: 20 people, 45.45%
C-Reactive Protein Increased: 14 people, 31.82%
Blood Urea Increased: 13 people, 29.55%
Blood Creatinine Increased: 12 people, 27.27%
Thrombocytopenia (decrease of platelets in blood): 11 people, 25.00%
White Blood Cell Count Decreased: 9 people, 20.45%
Blood Creatine Phosphokinase Increased: 9 people, 20.45%
Blood Lactate Dehydrogenase Increased: 9 people, 20.45%
Depressed Level Of Consciousness: 8 people, 18.18%

What are the existing conditions these people have? *

Depression: 4 people, 9.09%
Metastatic Renal Cell Carcinoma (spreadable kidney cell tumour): 4 people, 9.09%
High Blood Pressure: 3 people, 6.82%
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): 2 people, 4.55%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 2 people, 4.55%
Pancreatic Carcinoma (pancreatic cancer): 2 people, 4.55%
Hepatitis C: 2 people, 4.55%
Type 2 Diabetes: 1 person, 2.27%
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, 2.27%
Constipation: 1 person, 2.27%

* Approximation only. Some reports may have incomplete information.

Do you take Halcion and have Haematocrit decreased?

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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 Haematocrit decreased:

Haematocrit decreased (1,625 drugs)

Browse all the conditions that are associated with Haematocrit decreased:

Haematocrit decreased (2,400 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.