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Generic Name: Triazolam (trye AY zoe lam)

Drug Class: Benzodiazepines

Table of Contents

Halcion (Triazolam)Halcion (Triazolam)






Halcion (Triazolam) is classified as a Benzodiazepine and is used for treating insomnia (trouble falling or staying asleep). It produces a calming effect to help you fall asleep faster, stay asleep longer, and decreases how often you wake up during the night.

Triazolam affects chemicals in the brain that may become unbalanced and cause sleep problems (insomnia).

This medication may also be used for purposes not listed in this medication guide.

This information is for educational purposes only. Not every known side effect, adverse effect, or drug interaction is in this database. If you have questions about your medicines, talk to your health care provider.

How to Take It

Follow the directions for using this medicine provided by your doctor. This medicine should not be taken with food; it may be less effective. Continue to take this medicine even if you feel well. Do not miss any doses.

Side Effects

Side effects that may occur while taking this medicine include:

  • headache
  • vomiting
  • tingling of skin
  • nervousness
  • lack of coordination
  • dizziness

Contact your doctor immediately if you experience:

  • itching/rash/hives
  • confusion
  • tongue or throat swelling
  • depression/suicidal thoughts
  • vision changes
  • difficulty swallowing or breathing
  • urinary changes
  • aggressive behavior

Warnings & Precautions

  • Get medical help right away if you have a serious allergic reaction to this drug, such as severe dizziness, rash, itching or swelling of the tongue, throat or face, or trouble breathing.
  • In rare instances, this drug can rarely cause temporary short-term memory loss. DO NOT take a dose of this drug unless you have time to sleep a full night of 7-8 hours. Waking up before that amount of sleep might cause memory loss.
  • In rare instances, people have gotten out of bed, sleepwalked, eaten food, and driven vehicles while not fully awake, after taking this medication. This side effect can be dangerous to you or to others.
  • While using Halcion, DO NOT eat grapefruit or drink grapefruit juice unless your doctor says you may do so safely.
  • For an overdose, seek medical attention immediately. For non-emergencies, contact your local or regional poison control center at 1-800-222-1222.

Drug Interactions

Before taking any new medicine, either prescription or over-the-counter, check with your doctor or pharmacist. This includes supplements and herbal products.

Dosage & Missed Dose

Follow your doctor’s instructions carefully. Triazolam is available in tablet form. It’s typically taken 1x/ day at bedtime.

Dosage will depend on your age, medical condition, and response to treatment.

If you skip a dose, take your next dose as soon as you remember. If it is time for your next dose, skip the missed dose and go back to your regular schedule. Do not double doses or take extra medicine to make up for the missed dose.


Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (preferably not in the bathroom). Throw away any medication that is outdated or no longer needed.


Triazolam can be harmful to an unborn baby. It is not known if this medicine is excreted in breast milk. It is recommended that you DO NOT breast-feed while taking this medicine unless your doctor or pediatrician has told you to.

More Information

For more information, talk to your doctor, pharmacist or health care provider, or you can visit this website, for additional information from the manufacturer of this drug.



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APA Reference
Psych Central. (2018). Halcion. Psych Central. Retrieved on October 1, 2020, from


Scientifically Reviewed
Last updated: 8 Oct 2018
Last reviewed: By Christine Traxler, M.D.
Published on All rights reserved.