Halcion and Vitamin d drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Halcion (triazolam) and Vitamin d (ergocalciferol). Common drug interactions include constipation among females and diarrhoea among males.

The phase IV clinical study analyzes what interactions people have when they take Halcion and Vitamin d. It is created by eHealthMe based on reports of 61 people who take the same drugs 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 Vitamin d?

Vitamin d has active ingredients of ergocalciferol. It is often used in low vitamin d. eHealthMe is studying from 294,095 Vitamin d users. Check the latest studies of Vitamin d.

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, 23, 2026

61 people who take Halcion and Vitamin d together, and have interactions are studied.

Halcion and Vitamin d drug interactions.

What are the common drug interactions of Halcion and Vitamin D, by gender? *:

female:

  1. Constipation
  2. Crohn's disease (a condition that causes inflammation of the gastrointestinal tract)
  3. Dark circles under eyes
  4. Decreased appetite
  5. Delirium (wild excitement)
  6. Diarrhoea
  7. Disturbance in attention
  8. Drug dependence
  9. Drug hypersensitivity
  10. Drug ineffective

male:

  1. Diarrhoea
  2. Muscular weakness (muscle weakness)
  3. Cough
  4. Drug ineffective
  5. Emergency care
  6. Hiatus hernia (hernia resulting from the protrusion of part of the stomach through the diaphragm)
  7. Migraine (headache)
  8. Oesophageal ulcer (ulcer of oesophagus)
  9. Plasma cell myeloma (cancer that begins in plasma cells)
  10. Restless legs syndrome (a powerful urge to move your legs)

What are the common drug interactions of Halcion and Vitamin D, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

  1. Cough
  2. Diarrhoea
  3. Emergency care
  4. Headache (pain in head)
  5. Hiatus hernia (hernia resulting from the protrusion of part of the stomach through the diaphragm)
  6. Oesophageal ulcer (ulcer of oesophagus)
  7. Agitation (state of anxiety or nervous excitement)
  8. Agoraphobia (extreme or irrational fear of crowded spaces or enclosed public places)
  9. Anxiety
  10. Bradyphrenia (neurological term referring to the slowness of thought common to many disorders of the brain)

50-59:

  1. Umbilical hernia (an outward bulging (protrusion) of the abdominal lining or part of the abdominal organ(s) through the area around the belly button)
  2. Upper respiratory tract infection
  3. Viral infection
  4. Weight decreased
  5. Pyrexia (fever)
  6. Foot fracture
  7. Fungal infection
  8. Headache (pain in head)
  9. Joint swelling
  10. Malaise (a feeling of general discomfort or uneasiness)

60+:

  1. Muscular weakness (muscle weakness)
  2. Blood sodium decreased
  3. Coma (state of unconsciousness lasting more than six hours)
  4. Dysarthria (speech disorder)
  5. Gas poisoning
  6. Hallucination (an experience involving the perception of something not present)
  7. Nausea (feeling of having an urge to vomit)
  8. Plasma cell myeloma (cancer that begins in plasma cells)
  9. Sinusitis (inflammation of sinus)
  10. Asthenia (weakness)

What are the existing conditions these people have? *

  1. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 10 people, 16.39%
  2. Osteoporosis (bones weak and more likely to break): 7 people, 11.48%
  3. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 7 people, 11.48%
  4. Sleep Disorder: 6 people, 9.84%
  5. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 5 people, 8.20%
  6. Immunodeficiency Common Variable: 5 people, 8.20%
  7. Folate Deficiency (lack of folic acid): 5 people, 8.20%
  8. Diffuse Large B-Cell Lymphoma Stage Iv (cancer of b cells, a type of white blood cell-stage iv): 5 people, 8.20%
  9. Cancer Pain: 5 people, 8.20%

* Approximation only. Some reports may have incomplete information.

Do you take Halcion and Vitamin d?

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Halcion and Vitamin d:

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

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 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 side effects of Vitamin d:

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 interactions between Halcion and drugs from A to Z:

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 interactions between Vitamin d and drugs from A to Z:

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

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on triazolam and ergocalciferol (the active ingredients of Halcion and Vitamin d, respectively), and Halcion and Vitamin d (the brand names). 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.



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