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Halcion (Triazolam) Side Effects, Withdrawal and FAQs

Halcion, generic triazolam is a benzodiazepine drug primarily used in the treatment of insomnia.
Halcion has similar properties to other CSN depressants and has a relatively short half-life of between 1.5 – 5 hours. It is noted for its fast-acting, potent sedative effects.

Halcion (triazolam) is a drug manufactured by Pfizer which has been on the market since FDA approval in 1982. The drug has a high potential for dependency and abuse, because of its quick onset and euphoric, relaxing effects. It should only be taken for very short-term use to avoid the problems of addiction, dependence, and withdrawals which can become a formidable consequence once tolerance to the drug has developed. Halcion should not be taken for more than 7 to ten nights in a row. The FDA warns that if taken for 2 weeks, the user will experience rebound insomnia worse than before the drug was started.  If taken for more than 10 days, the user will experience increased daytime anxiety.  (1)

Like other hypnotics used as sleeping aids, some people experience sleep walking, sleep driving, talking on the phone, going out sleep-shopping, having sex , other activities while under its influence that they do not remember later. These complex behaviors require that discontinuation should be “strongly considered”, according to FDA findings. (1)

The following information on side effects, withdrawal symptoms and other topics may help understand more about this drug before deciding to start or stop taking Halcion.

What is Halcion (Triazolam) Used For?

Halcion, like some other sedative-hypnotics, are primarily used as a short-term treatment for insomnia.

Before beginning a person on a prescription for this class of drug, studies on sleep and stress in the field of biological psychiatry recommend a thorough evaluation of the patient to ensure that physical conditions or illness have been ruled out as causal agents, and that non-addictive substances have been recommended over prescription drugs in treating the patient’s insomnia. (4)

This commonsense approach should be heeded if you are experiencing symptoms of insomnia, and have not requested a thorough physical examination yet, or your physician has not suggested non-addictive sleeping aids prior to prescribing Halcion.

Halcion (Triazolam) Alternative Names and Slang

Tranquilizers such as Halcion are available as street drugs, where they can be generally referred to as “tranks”, or specifically for Halcion, “Up-Johns”, presumably for the euphoric effects.

Poly-drug users are especially at risk when combining Halcion with other CNS depressants, such as alcohol or opiates. Sometimes Halcion is used in this way to either get a more intense high or to self-medicate where there is a desire to quash unwanted mental conditions quickly (yet temporarily).

Halcion (Triazolam) Side Effects

When taken as prescribed, the drug’s effectiveness wanes quickly over a week or so. This is referred to as the down-regulation effect of such tranquilizers, and the user will begin to experience their prior symptoms even more intensely than before they started taking the drug.

Such rebound effects may include:

  • Worsened insomnia
  • Increased periods of wakefulness at night
  • More frequent occurrences of interrupted sleep
  • Worsened daytime anxiety
  • Mania
  • Sleep deprivation symptoms; fatigue, mental fog, altered perception, drowsiness, slow learning, inability to concentrate, irritability, mood swings, forgetfulness, etc.

The initial and developing side effects of Halcion include:

  • Profound sedation
  • Euphoric high
  • Calmness
  • Sleepiness
  • In the elderly population, side effects are more pronounced and include dizziness, accident-prone, loss of coordination, lingering effects of sedation.
  • Emergence of new thinking or behaviors including decreased inhibition, aggression, hallucination, impulsiveness or recklessness similar to that of a drunken state, depression, worsened depression, suicidality, etc.
  • Depersonalization, characterized by feelings of detachment from self, sometimes as if outside one’s body and observing but not recognizing self, separation from one’s own feelings or thoughts as their own, loss of the sense of self-identification.
  • Sleep-walking, traveler’s amnesia, sleep-cooking, sleep-driving, etc. which can’t be remembered the next day.
  • Hallucinations
  • Cravings for more of the drug
  • Severe allergic reactions, occasioned by the following: swollen throat, lips, tongue, throat closing, nausea, vomiting, airway obstruction (can be fatal).
  • Tachycardia
  • Prickling feeling like pins and needles on the skin
  • Loss of coordination
  • Lightheadedness
  • Headache
  • Coordination disorders, ataxia

Other side effects besides the ones listed here may emerge. If you or a loved one has observed these or other concerning side effects, seek immediate medical assistance.


Pregnant or nursing women should not take Halcion as the drug causes harm to the baby and is excreted into breast milk.

Halcion (Triazolam) Withdrawal Symptoms

A prescription for Halcion is generally for a maximum of 10 days or less. After the prescription is done, there may be some withdrawals even though the drug was taken exactly as prescribed.

Since Halcion has a high risk of addiction, what can sometimes happen is a person may seek another prescription or becomes prone to over-use of the drug to get the same euphoric or other desired effects.

Once the body has become dependent on the drug, withdrawal symptoms will emerge. These can be extreme, making stopping the drug extremely difficult to do without support, and require medical intervention to ensure the safety of the person and those around them.

Some withdrawal symptoms include:

  • Tremors
  • Convulsions
  • Nausea
  • Abdominal cramping
  • Profuse sweating
  • Muscle aches, cramps
  • Drug cravings
  • Agitation
  • Fatigue
  • Mental fog

Discontinuing/Quitting Halcion (Triazolam)

If discontinuing or quitting Halcion has been difficult, or if the drug was continued past the 10-day mark, medical detox is indicated without question.

Halcion is a benzodiazepine drug, and this class of drugs is thought to act primarily on the GABA receptors in the brain. When the body becomes used to having the drug in the system, there is a profound effect and influence on the neurochemistry of the CNS. This influence is thought to be why stopping the drug is linked to such severe physical, emotional and mental discomforts and malaise, and unusual or even bizarre responses and behaviors.

Stopping any agent which has created this dependency can be not only extremely difficult because of the levels of discomfort involved but can be dangerous to yourself or to those around you to attempt this on your own. Always seek medical assistance for coming off benzodiazepines such as Halcion.

Halcion (Triazolam) FAQs

The following information is provided regarding some of the most frequently asked questions about Halcion.

How Does Halcion (Triazolam) Work?

It is thought that benzodiazepine drugs such as Halcion target the GABA receptors in the brain. GABA is an inhibitory neurotransmitter, a messenger that is designed for carrying the message, “slow down”. It is a naturally occurring substance, a natural chemical that the body creates mostly in the intestines and delivers to the rest of the body.  GABA receptors are the places where GABA “visits” along the journey, following the maps of the various nerve pathways. A rough analogy might compare GABA messengers to a catcher’s mitt. GABA softens the impact of nerve impulses to receptors that otherwise might be too intense to handle. Just as catching a fastball would be too intense for a bare hand. GABA’s main job is regulating things like sleep and counter-acting against fear or stress.

However, Halcion and other benzodiazepine drugs mimic natural GABA and take over this function, temporarily creating a powerful sedating (slowing) effect. Since the body is built to adapt to changing conditions in a valiant effort to stay alive, drugs can cause other changes to rapidly occur in a domino-like fashion, causing chaotic chain-reactions, unpredictable consequences, and certainly presenting formidable challenges to the innate intelligence of the body in its attempt to adapt and maintain homeostatic balance.

More research needs to be done on supporting healthy neurochemistry and recognizing the factors that can harm or disrupt it, leading to better solutions to problems that drugs cannot adequately resolve.

What’s the Difference between Halcion and Xanax?

There are similarities and there are differences between the two benzodiazepine drugs Halcion and Xanax.

The drugs are both prescribed for short term use due to their shared high risk for addiction. They both are fast-acting in their effect. They both can cause memory problems, and both have been used and documented in date-rape cases.

However, Xanax is primarily prescribed for reducing anxiety, and Halcion is primarily prescribed for insomnia.

Can You Overdose on Halcion?

Yes. Overdose and death by overdose are a risk with Halcion and other drugs in its class. With immediate emergency medical intervention, sometimes a Halcion overdose can be successfully treated and the person will live. Others are not so fortunate.

One of the problems with benzodiazepine drugs is that the effects on the CNS are significantly augmented when used concomitantly with alcohol, opiates, and some other medications including antihistamines that may be considered inert because they are purchased over the counter. Such combinations can be fatal.

Signs that indicate overdose include these:

  • Profound sedation
  • Unconsciousness
  • Slowed respiration
  • Shallow breathing
  • Clamminess of the skin
  • Dilated pupils
  • Weak or rapid pulse
  • Confusion
  • Loss of coordination
  • Slurred speech
  • Comatose condition 

How Addictive is Halcion?

Halcion is considered to have high risk for dependence and addiction due in part to its fast and also short-lived effects. The euphoric effect may become something that sets up a desire to re-experience that, though the dose typically would have to be increased to achieve that aim.

Also for induction of sleep, the “knock-out” effect may be within minutes, but over the course of a few days, the wakeful interludes become more and more frequent and of longer duration as the symptoms of insomnia return. This may lead a person to take more of the drug than was prescribed in a desperate attempt to get to sleep.

These characteristics make Halcion users prone to addiction. Halcion is an especially poor choice for someone with a history of addictive behavior, or who is unable to abstain from alcohol while taking Halcion.

The most common uses of drugs like Halcion (triazolam) are short term, for the drug is fast-acting. Halcion produces a calming and mild euphoria caused by depression of the CNS. Halcion is “short acting”. This means if a person takes it at night, in the morning the sedative effects will have worn off. This can rebound into anxiety. Especially relevant to people who already had daytime anxiety, this makes a rollercoastering effect and the tendency may be for the prescribing practitioner to inter-dose the patient during the day with possibly another benzodiazepine. This may result in new or amplified daytime anxiety, and the patient may quickly find themselves in the difficult position of taking medication 3 to 4 times each day, yet their symptoms continue to be problematic, like a repeating unresolving loop.

Is Halcion a Controlled Substance?

Yes. Halcion is a Schedule IV controlled substance, as it has a high risk for dependence or addiction.

Such substances should always be kept out of the reach of children, or those who may not realize it has such potent characteristics.

As a C-IV substance, it is prohibited to give or sell Halcion to another without a prescription.

How Long Does Halcion Stay in Your System?

Halcion has a half-life of between 1.5 and 5 hours with peak plasma levels at two hours. The drug is quickly metabolized over some hours, with some variations due to body weight, age, genetics, and other factors. The drug typically clears before the next night-time dose.

Treatment for Halcion (Triazolam) Abuse and Addiction?

The consequences of sleep deprivation are well known. Insomnia can present a huge challenge to quality of life and to health. This can result in a lowered ability to function on the job, chronic fatigue, and other factors.  It may be time to consider effective ways to correct the problem. The best solutions to such problems are ones that don’t introduce further harm such as addiction or lingering unwanted side effects. But these can be overcome at the Alternative to Meds Center.

To attempt a fast cessation process for benzodiazepines is usually the least wise option, though it may occasionally work for some. It should be considered a bit of a gamble, in an already delicate context. The body is not given adequate time to adjust during rapid removal of this drug, and flanking that problem are the still extant factors causing the client’s anxiety. Rushing the process may worsen an already fragile situation. It is not advised. The most reliable solution is the slow, calculated taper. Long term success may include the extraction of excitotoxins, such as pesticides.

Excitotoxins such as organophosphates or other pesticides can adversely affect the acetylcholinesterase enzymes, resulting in overstimulated neuronal pathways. (2)

Aspartame and MSG are thought to cause synaptic over-firing. Aspartic acid (contained in aspartame) and glutamic acid (from MSG) stimulate a receptor in the brain called the NMDA receptor (n methyl d aspartate).

Over time, chronic overstimulation of the NMDA receptor becomes neurotoxic. The cumulative negative effects of pesticides and other toxins from environmental exposure need more research to provide a more complete understanding. Toxin removal needs to be included in any restorative health program. (3)

The Alternative to Meds Center provides testing and diagnostic methods to do the investigative work that was possibly never done prior to prescribing drugs for insomnia or other sleep disorders.

Our methods include a number of therapies that have been shown to improve quality of sleep, energy level, and other positive health benefits without needing to rely on prescription drugs.

However, we know that dependence to drugs may leave a person trapped on a drug that they have been able to stop taking without experiencing intolerable withdrawal symptoms. We specialize in helping a person withdraw comfortably and safely, in a medically monitored, individually tailored program.

Part of the initial steps of drug recovery is the removal of neurotoxic load, including heavy metals. Removing the body burden of neurotoxins is extremely beneficial. Typically clients report a near immediate improvement in quality of sleep, more positive mood, better appetite, and many other benefits, lessening the need to medicate such symptoms as insomnia. Please contact us at the Alternative to Meds Center for more information. We invite you to find out more about how our methods may help you or a loved one with healing after insomnia may have led to dependence to Halcion.

This content has been reviewed and approved by a licensed physician.

Dr. Michael Loes, M.D.

Dr. Michael Loes is board-certified in Internal Medicine, Pain Management and Addiction Medicine. He holds a dual license in Homeopathic and Integrative Medicine. He obtained his medical doctorate at the University of Minnesota, Minneapolis, MN, 1978. Dr. Loes performed an externship at the National Institute of Health for Psychopharmacology. Additionally, he is a well-published author including Arthritis: The Doctor’s Cure, The Aspirin Alternative, The Healing Response, and Spirit Driven Health: The Psalmist’s Guide for Recovery. He has been awarded the Minnesota Medical Foundation’s “Excellence in Research” Award.

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