Halcion (Triazolam) Withdrawal Timeline

Published by Joseph, EditorCompiled from cited sources · not yet medically reviewedUpdated Oct 26, 20269 sources

Need help now? SAMHSA’s National Helpline is free, confidential and open 24/7 in English and Spanish: 1-800-662-4357. In a mental health crisis, call or text 988. In an emergency, call 911.

For information only, not medical advice. Talk to a doctor before stopping or changing any medication. Medical disclaimer

⚠ Medical warning

Stopping Halcion (triazolam) or any benzodiazepine suddenly after regular use can be life-threatening, including seizures. Never stop or cut your dose quickly on your own, and don’t try to taper yourself. Get medical supervision: talk to your prescriber about a slow, personal taper plan. Call 911 for a seizure, confusion or hallucinations.

Quick answer

Halcion (triazolam) is a very short-acting benzodiazepine sleeping pill prescribed for short-term insomnia (generally 7 to 10 days). Its FDA label warns that stopping suddenly or cutting the dose quickly after continued use can cause acute withdrawal reactions, which can be life-threatening, including seizures. Its mean elimination half-life is only 1.5 to 5.5 hours, and sleep-lab studies found frequent, intense rebound insomnia on the first 1 to 3 nights after abrupt stopping. Some people develop a protracted withdrawal lasting weeks to more than 12 months. The sources don’t give an exact day-by-day timeline for full triazolam withdrawal, so the timing below is approximate. Never stop on your own after regular use.

Halcion withdrawal timeline at a glance

When did you last use or take it?

⚠ Medical warning (read before using this)

This places the typical ranges from this article's sources on your date. It is not a prediction or a diagnosis, and being past a phase does not mean symptoms or risks are over.

A rough guide from published sources, not medical advice. Everyone is different.

Phase	When	What you may feel	Severity	Red flags
Rebound insomnia	First 1 to 3 nights after the last dose	Trouble falling or staying asleep, sometimes worse than before you started; Restless, broken sleep; Feeling tired and on edge the next day	Moderate	Shaking, confusion or hallucinations rather than just poor sleep: get medical help now; A seizure, confusion, or seeing or hearing things that aren’t there: call 911
Acute withdrawal	Days to weeks after stopping or reducing (sources give no exact timing for triazolam)	Anxiety and panic attacks; Insomnia; Restlessness, irritability; Tremor, muscle pain or stiffness; Fast heart rate, high blood pressure; Headache, dizziness, blurred vision; Sensitivity to light and sound; Nausea, vomiting, diarrhea, poor appetite; Feeling unreal or detached; Memory problems	Can be life-threatening	A seizure, confusion, or seeing or hearing things that aren’t there: call 911; Severe confusion, mania or psychosis; Thoughts of suicide or self-harm: call or text 988 now
Protracted withdrawal (some people)	Beyond 4 to 6 weeks; can last more than 12 months	Anxiety, depression, insomnia; Cognitive problems; Tingling or crawling skin sensations; Weakness, muscle twitches, tremor; Ringing in the ears	Moderate	Thoughts of suicide or self-harm: call or text 988 now

Print a daily symptom log for this timeline · My quit tracker

Symptoms, phase by phase

The triazolam label says acute benzodiazepine withdrawal has included abnormal involuntary movements, anxiety, blurred vision, feeling detached or unreal (depersonalization and derealization), depression, dizziness, fatigue, stomach upset (nausea, vomiting, diarrhea, weight loss, poor appetite), headache, sensitivity to sound and light, high blood pressure, irritability, insomnia, memory problems, muscle pain and stiffness, panic attacks, restlessness, fast heart rate and tremor. More severe reactions, including life-threatening ones, have included catatonia, convulsions, delirium tremens, depression, hallucinations, mania, psychosis, seizures and suicidality. Because triazolam leaves the body so quickly, the first thing many people notice is a few nights of bad sleep. MedlinePlus says this is common and usually improves after one or two nights, but anything beyond poor sleep needs a call to your prescriber.

Rebound insomnia: First 1 to 3 nights after the last dose

Trouble falling or staying asleep, sometimes worse than before you started
Restless, broken sleep
Feeling tired and on edge the next day

Acute withdrawal: Days to weeks after stopping or reducing (sources give no exact timing for triazolam)

Anxiety and panic attacks
Insomnia
Restlessness, irritability
Tremor, muscle pain or stiffness
Fast heart rate, high blood pressure
Headache, dizziness, blurred vision
Sensitivity to light and sound
Nausea, vomiting, diarrhea, poor appetite
Feeling unreal or detached
Memory problems

Protracted withdrawal (some people): Beyond 4 to 6 weeks; can last more than 12 months

Anxiety, depression, insomnia
Cognitive problems
Tingling or crawling skin sensations
Weakness, muscle twitches, tremor
Ringing in the ears

Withdrawal can start while you’re still taking it. The label says increased daytime anxiety has been reported after as few as 10 days of continuous use, and in some people this may be withdrawal between doses (interdose withdrawal). Tell your prescriber if this happens rather than changing your dose yourself.

What makes withdrawal longer or shorter

How long you’ve taken it. The label says the risk of dependence and withdrawal rises with longer treatment. MedlinePlus notes dependence can develop especially if you take triazolam for several days to several weeks.
Dose. The label lists higher and more frequent doses as a risk factor. In a review of sleep-lab studies, rebound insomnia was seen more consistently after 0.5 mg than after 0.25 mg.
Very short half-life. Triazolam’s mean elimination half-life is 1.5 to 5.5 hours. Studies comparing sleeping pills found rebound insomnia was more frequent, immediate and intense after quickly eliminated benzodiazepines like triazolam than after slowly eliminated ones.
Stopping all at once vs tapering. The label recommends a gradual taper for anyone stopping after continued use. One study in the 1989 review found that tapering reduced rebound insomnia after triazolam.
Age. The label says older adults have higher blood levels of triazolam at the same dose because they clear it more slowly, and the 2025 tapering guideline urges extra care when tapering older adults.
Alcohol, opioids and other sedatives. The boxed warning says combining benzodiazepines with opioids can cause profound sedation, breathing problems, coma and death. Mixing with alcohol or other sedatives also raises the danger.
Flumazenil. The label notes that this benzodiazepine-reversal drug can trigger acute withdrawal, including seizures, in someone who is dependent.

When to see a doctor or get help now

Before making any change to your dose, even if you’ve only been taking it for a few weeks.
Call 911 for a seizure, confusion, hallucinations or severe agitation.
Call or text 988 for thoughts of suicide or self-harm.
If you’ve run out of a prescription, contact your prescriber or urgent care the same day rather than waiting it out.
If you notice new daytime anxiety, or your sleep problems haven’t improved after 7 to 10 days of treatment. The label says insomnia that doesn’t improve may point to another medical or mental health condition that should be checked.

Not sure where to start? Call SAMHSA’s free, confidential helpline at 1-800-662-4357, 24/7. See Get Help.

Tapering

The FDA label says to use a gradual taper, with a patient-specific plan, to stop triazolam or lower the dose. If withdrawal symptoms appear, it says to consider pausing the taper or going back to the previous dose, then reducing more slowly. The 2025 Joint Clinical Practice Guideline on Benzodiazepine Tapering says tapers should be tailored to each person. People who took lower doses for a short time (for example, under 3 months) may be able to taper more quickly. Some prescribers switch people to a longer-acting benzodiazepine for the taper, but guidelines disagree on this, and it is less likely to suit older adults. Get medical supervision for this. We don’t publish dose-by-dose schedules: the FDA label says the taper should follow a patient-specific plan, with the prescriber adjusting it if withdrawal symptoms appear.

Tips for getting through it

Expect a few rough nights after the last dose, and plan a quiet, low-pressure schedule for them
Keep a steady wake-up time, even after a poor night
Ask about cognitive behavioral therapy for insomnia (CBT-I) to help you sleep without medicine
Keep a symptom diary to share with your prescriber
Avoid alcohol and other sedatives
Try a calming breathing exercise; the NHS describes one for stress, anxiety and panic
Read our general benzo withdrawal timeline

Frequently asked questions

How long does Halcion withdrawal last?

Rebound insomnia usually shows up on the first 1 to 3 nights. Acute withdrawal after longer, regular use can run days to weeks, but the sources don’t give an exact timeline for triazolam. The label says some people develop protracted withdrawal lasting weeks to more than 12 months.

Why is my sleep worse right after stopping triazolam?

This is called rebound insomnia: sleep that is worse than before you started. Sleep-lab studies found it is common and intense on the first nights after abruptly stopping triazolam. MedlinePlus says it usually gets better after one or two nights.

Is Halcion withdrawal dangerous?

It can be. The FDA label warns that stopping suddenly or reducing the dose quickly after continued use can cause life-threatening reactions such as seizures. Stop only under medical supervision.

I only took it for a few nights. Will I have withdrawal?

Short courses carry less risk, but MedlinePlus says dependence can develop over several days to several weeks. A few nights of rebound insomnia is possible. Ask your prescriber before stopping, and report any symptoms beyond poor sleep.

Can I have withdrawal symptoms while still taking Halcion?

Yes. The label says increased daytime anxiety has been reported after as few as 10 days of continuous use, and it may be withdrawal between doses. Talk to your prescriber instead of adjusting the dose yourself.

Next steps

Talk to others going through it. Share your experience or ask questions on the Benzodiazepines board in our community forum. Planning to stop? See the Tapering & Talking to Your Doctor board, and talk to a doctor before you stop. Forum posts are personal experiences, not medical advice. Please read the community guidelines.

Sources

Last reviewed: October 26, 2026. Researched and written by Withdrawal Timelines from the cited sources. This article has not yet been reviewed by a medical professional. See How We Review and our Medical Disclaimer. This is general information, not medical advice.

More timelines

View all