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

Summary:

Drug interactions are reported among people who take Halcion (triazolam) and Nifedipine (nifedipine). Common drug interactions include constipation among females and hypoglycaemia among males.

The phase IV clinical study analyzes what interactions people have when they take Halcion and Nifedipine. It is created by eHealthMe based on reports of 50 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 Nifedipine?

Nifedipine has active ingredients of nifedipine. It is often used in high blood pressure. eHealthMe is studying from 53,457 Nifedipine users. Check the latest studies of Nifedipine.



On Apr, 25, 2026

50 people who take Halcion and Nifedipine together, and have interactions are studied.

Halcion and Nifedipine drug interactions.

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

female:

  1. Constipation
  2. Drug withdrawal syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation)
  3. Dementia (madness)
  4. Hearing impaired
  5. Paraesthesia oral (sensation of tingling, tickling, prickling, pricking, or burning of a person's oral with no apparent long-term physical effect)
  6. Pyrexia (fever)
  7. Abdominal pain
  8. Intestinal obstruction
  9. Nausea (feeling of having an urge to vomit)
  10. Pneumonia aspiration (bronchopneumonia that develops due to the entrance of foreign materials into the bronchial tree)

male:

  1. Hypoglycaemia (deficiency of glucose in the bloodstream)
  2. Drug ineffective
  3. Asthma
  4. Cardiac arrest
  5. Cardio-respiratory arrest (sudden dysfunction of heart and lungs)
  6. Cerebral infarction (less blood supply to brain resulting tissue damage)
  7. Contusion (a type of hematoma of tissue in which capillaries)
  8. Headache (pain in head)
  9. Hypercholesterolaemia (high levels of cholesterol in the blood)
  10. Restless legs syndrome (a powerful urge to move your legs)

What are the common drug interactions of Halcion and Nifedipine, 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. Multiple drug overdose

50-59:

  1. Drug ineffective
  2. Restless legs syndrome (a powerful urge to move your legs)
  3. Asthma
  4. Bronchopneumonia (inflammation of the lungs, arising in the bronchi or bronchioles)
  5. Cardio-respiratory arrest (sudden dysfunction of heart and lungs)
  6. Cerebral infarction (less blood supply to brain resulting tissue damage)
  7. Circulatory collapse
  8. Cough
  9. Gait disturbance
  10. Immunodeficiency common variable

60+:

  1. Constipation
  2. Drug withdrawal syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation)
  3. White blood cell count increased
  4. Abdominal pain
  5. Anaemia (lack of blood)
  6. Cardiac arrest
  7. Death
  8. Hypoglycaemia (deficiency of glucose in the bloodstream)
  9. Intestinal obstruction
  10. Nausea (feeling of having an urge to vomit)

What are the existing conditions these people have? *

  1. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 6 people, 12.00%
  2. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 6 people, 12.00%
  3. Stable Angina (a constant chest pain): 4 people, 8.00%
  4. Hyperlipidaemia (presence of excess lipids in the blood): 4 people, 8.00%
  5. Depression: 4 people, 8.00%
  6. Constipation: 4 people, 8.00%

* Approximation only. Some reports may have incomplete information.

Do you take Halcion and Nifedipine?

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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 Nifedipine:

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 Nifedipine:

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 Nifedipine 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

How the study uses the data?

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