What Is Halcion? Uses, Dosage, and What You Need to Know in 2026

Halcion is a brand name for triazolam, a prescription sleep medication that has been in use since 1982. It belongs to a class of drugs called benzodiazepines — specifically the triazolobenzodiazepine subclass — and is one of the fastest-acting and shortest-acting medications available for treating insomnia. Here's everything you need to know about Halcion in 2026.

What Is Halcion Used For?

Halcion (triazolam) is FDA-approved for the short-term treatment of insomnia in adults. Specifically, it helps with:

• Difficulty falling asleep (sleep-onset insomnia)
• Waking up frequently during the night
• Circadian rhythm disruptions such as jet lag

Halcion is intended for short-term use only — typically 7 to 10 days. It is not approved for chronic insomnia, and using it for more than 2–3 weeks without medical supervision is not recommended. Some doctors also use it off-label as a pre-procedural sedative for dental anxiety.

What Is in Halcion? Brand vs. Generic

The active ingredient in Halcion is triazolam. The brand-name Halcion was originally developed by Upjohn (now a Pfizer company) and received FDA approval in 1982. Today, the brand-name product is rarely dispensed at retail pharmacies — essentially all prescriptions are filled with generic triazolam produced by manufacturers such as Teva, Perrigo, Apotex, and Zydus.

Generic triazolam is bioequivalent to brand-name Halcion — it contains the same active ingredient at the same dose and meets the same FDA standards. For most patients, generic triazolam works identically to the brand.

What Dosage Forms and Strengths Are Available?

Halcion/triazolam is available as an oral tablet in two strengths:

• 0.125 mg tablets: Recommended for elderly patients and those with low body weight; also used when starting treatment
• 0.25 mg tablets: The standard adult dose; most commonly prescribed

A 0.5 mg dose is the maximum; it should only be used in patients who don't respond to lower doses. The FDA emphasizes using the lowest effective dose.

How Do You Take Halcion Correctly?

Correct use of Halcion is important for both effectiveness and safety:

• Take it immediately before bedtime — not while still active or away from your sleeping area. The medication works very quickly.
• Allow 7–8 hours for sleep after taking it before you need to drive or be fully alert.
• Do not take with food or shortly after a meal — food can slow absorption and reduce effectiveness.
• Do not take with grapefruit juice — grapefruit inhibits the CYP3A4 enzyme that metabolizes triazolam, significantly increasing its blood levels.
• Do not drink alcohol — this significantly increases the risk of dangerous sedation and complex sleep behaviors.
• Do not take more than prescribed — side effects including amnesia, complex sleep behaviors, and next-day impairment are dose-related.

Is Halcion a Controlled Substance?

Yes. Halcion (triazolam) is a Schedule IV controlled substance under the DEA Controlled Substances Act. It has recognized medical use but carries a potential for abuse, dependence, and addiction. Schedule IV means:

• A valid prescription from a licensed DEA-registered provider is required — no refills over the phone in most states
• Prescriptions can only be refilled a limited number of times (typically 5 refills within 6 months in most states)
• You cannot receive it via most telehealth platforms without a prior in-person evaluation

How Long Does Halcion Stay in Your System?

Triazolam has a mean plasma elimination half-life of 1.5 to 5.5 hours — making it one of the shortest-acting benzodiazepines available. This means the drug's sedating effects generally wear off within 4–8 hours for most patients. However, residual impairment can persist into the next morning, particularly at higher doses or in elderly patients.

For drug testing purposes, benzodiazepines like triazolam are typically detectable in urine for 1–5 days after the last dose, depending on dose, duration of use, and individual metabolism.

Who Should NOT Take Halcion?

Halcion is contraindicated (should not be used) if you:

• Are allergic to triazolam or any other benzodiazepine
• Currently take strong CYP3A4 inhibitors: ketoconazole, itraconazole, nefazodone, ritonavir, indinavir, or other HIV protease inhibitors
• Are pregnant (the safety of benzodiazepines in pregnancy is not established; they may cause neonatal withdrawal)
• Are breastfeeding (triazolam may pass into breast milk and harm the infant)
• Are under 18 years of age (safety and efficacy not established in pediatric patients)

How to Find Halcion at a Pharmacy Near You

Because Halcion is a low-volume drug, many pharmacies don't keep it consistently stocked. If your pharmacy is out, use medfinder to quickly identify pharmacies near you with triazolam in stock. medfinder calls pharmacies on your behalf, saving you the time and frustration of calling each one yourself.