Triazolam (Halcion®)

Intro: Triazolam is a benzodiazepine prescribed for the short-term management of insomnia. This medication is a controlled substance, meaning it can be habit-forming. Triazolam may cause withdrawal side effects if stopped suddenly without a doctor's supervision. Triazolam is likely to be more effective when used with integrated therapies such as Cognitive Behavioral Therapy for Insomnia.
Brittany Ferri, PhD, OTR/L

Written by: Brittany Ferri, PhD, OTR/L on March 26, 2026

Kaye Smith, PhD

Reviewed by: Kaye Smith, PhD on April 8, 2026

Updated On: March 26, 2026

7 min read

Key takeaways:

  • Triazolam is a benzodiazepine used primarily for the short-term management of insomnia. While less common, this medication may be used as a sedative during medical and dental procedures or to treat anxiety disorders.
  • Triazolam should not be taken for more than 7 to 10 days, as long-term use increases someone’s risk of dependence, withdrawal symptoms, and adverse side effects.
  • Triazolam interacts with alcohol as well as any medications that cause drowsiness, so they should not be taken together. Triazolam is also known to interact with other medications, so it is important to tell your doctor what you are currently taking to determine if triazolam is right for you.

Understanding triazolam

Triazolam is the generic name of a sedative used to temporarily relieve insomnia. This benzodiazepine medication is a controlled substance and may cause dependence if used for longer than 7 to 10 days. Someone may experience withdrawal symptoms along with more significant difficulty sleeping after they stop taking triazolam. [1] There are other sedatives with fewer side effects and risks, so triazolam is not prescribed as often as it once was. [3]

How it works

Because triazolam is a benzodiazepine, it works by binding to BNZ1 and BNZ2 receptors in the brain. BNZ1 receptors regulate sleep, while BNZ2 receptors control motor coordination and memory. These benzodiazepine receptors are also affected by gamma-aminobutyric acid-A (GABAA) receptors, which slow activity in the brain and spinal cord. [2]

Brand names

In the United States, triazolam is sold under the brand name Halcion®. This medication may be sold in other countries under brand names such as Apo-Triazo and Hypam.

Conditions triazolam is used to treat

Triazolam is primarily used for the short-term management of insomnia in adults. Specifically, triazolam is prescribed for people who have difficulty falling or staying asleep and who report poor-quality sleep. [4]

Off-label uses

Triazolam may be prescribed off-label for the management of anxiety disorders and as a sedative given before medical or dental procedures. However, it is important to note that off-label uses are not approved by the Food & Drug Administration (FDA). Regardless of why this medication is prescribed, it comes along with risks. Therefore, anyone taking triazolam off-label should be closely monitored by their doctor.

Triazolam side effects

This medication can cause a range of adverse effects. You may see some minor triazolam side effects as your body acclimates to the medication. While they may be uncomfortable, they do not always require medical attention. However, if any of the following symptoms are severe and do not go away after a short time, it is important to contact your doctor: [1]

  • Vomiting
  • Nausea
  • Headache
  • Lightheadedness
  • Dizziness
  • Drowsiness
  • Nervousness
  • Incoordination
  • Paresthesias (numbness and tingling of the skin)

Dangerous and rare side effects

Triazolam may also cause serious side effects that indicate an allergic reaction or another urgent problem. In the event these triazolam side effects arise, you should get emergency medical attention: [1] [5]

  • Hoarse voice
  • Difficulty breathing
  • Trouble swallowing
  • Rash
  • Hives
  • Itching
  • Swelling of the tongue, throat, eyes, lips, or face
  • Feeling that your throat is closing
  • Vision changes
  • Skin irritation, including blistering, itching, cracking, reddening, or crusting

Lastly, rare side effects of this medication include: [5]

  • Dry mouth
  • Diarrhea
  • Constipation
  • Muscle cramps
  • A bad taste in your mouth
  • Muscle weakness
  • Memory problems
  • Ringing in the ears
  • Feelings of hopelessness
  • Increased or irregular heartbeat
  • Hearing loss
  • Loss of appetite
  • Lack of pleasure in once enjoyable activities
  • Irritability
  • Nightmares
  • Fatigue
  • Difficulty focusing
  • Difficulty sleeping

Is it addictive?

Yes, triazolam is a controlled substance that comes along with a risk of dependence and addiction. [1] If this medication is misused, it may result in an overdose or death. It is also possible for someone to develop a physical dependence on this drug even when it is taken as prescribed. However, someone’s risk of dependence and withdrawal is greater if they take the medication at a higher dose and for a longer period of time.

Any professional who prescribes this medication to patients should complete a thorough evaluation, including a comprehensive risk assessment that determines someone’s likelihood of drug misuse. [5] [6]

Precautions

This medication should be used with caution in individuals who have a history of suicidal thoughts as well as those with seizure disorders, kidney disease, liver disease, breathing conditions, or sleep apnea. Individuals who take triazolam should be aware that this medication may increase daytime drowsiness, decrease mental alertness, and increase fall risk.

Due to triazolam’s known effects on alertness and motor coordination, individuals are advised not to operate heavy machinery or drive until their body adjusts to the medication. Triazolam may cause some people to go about their day without a recollection of its events due to being partially asleep. If this happens, let your doctor know right away. [1]

Since this medication can be habit-forming, be sure to regularly check in with your doctor while taking it. Tell your doctor if you are pregnant or planning to become pregnant while taking this medication, as triazolam can affect newborn babies. [5]

Considerations and risks

Since triazolam is a controlled substance, there are several considerations and risks to keep in mind. This medication has not been tested for use in children. If prescribed to older adults, doctors should start with lower initial and maximum doses. [6]

Drug interactions

Anyone allergic to benzodiazepines (including but not limited to triazolam) should not take this medication, as it can cause an allergic reaction. Certain antihistamines, including cimetidine (Tagamet) and ranitidine (Zantac), are known to interact with triazolam. Individuals should not take these medications along with triazolam. [1]

Do not take opioid medications, muscle relaxers, anxiolytics, anti-seizure medication, or other sleeping pills if you are taking triazolam. These medications work in the same way as triazolam does, meaning you may experience significant drowsiness and slowed breathing that can be fatal. [5]

The following medications should not be taken with triazolam: [7]

  • Boceprevir (used to treat Hepatitis C).
  • Sodium oxybate (used to treat narcolepsy).
  • Telaprevir (used to treat Hepatitis C).
  • Anti-fungal medications, including ketoconazole and itraconazole.
  • Antiviral medications are used to treat AIDS and HIV.

Triazolam may also interact with antidepressants, antibiotics, blood pressure or heart medications, hormonal medications that contain estrogen or progestin, and phenothiazines. This medication is also known to interact with general anesthetics, so you should tell your doctor if you are scheduled for a medical or dental procedure while you are taking triazolam. [7]

Other interactions

This medication is known to interact with certain foods. If you are taking triazolam, you should not eat grapefruit or drink grapefruit juice. This can impact the efficacy of the medication. [1] Triazolam should not be used with alcohol, as this is another central nervous system depressant. Combining these two substances can be fatal.

Triazolam dosage

When used to treat insomnia, this medication is prescribed with an initial dose of 0.25 mg taken once daily at bedtime. The maintenance dose for triazolam may be anywhere from 0.125 to 0.25 mg taken once daily at bedtime. The maximum dosage for triazolam is 0.5 mg per day with a maximum duration of 7 to 10 days. [1] [3]

When prescribed for older adults, the initial dose should be 0.125 mg taken once daily at bedtime to treat insomnia. The maintenance dose and maximum duration are the same for this population, but the maximum daily dose should not exceed 0.25 mg for older adults. [5]

Triazolam cessation and withdrawal

To avoid symptoms of withdrawal, do not suddenly stop taking triazolam or lower your dose of this medication without speaking to your doctor. Doing so can cause unpleasant withdrawal side effects and lead to your insomnia worsening. [1] Withdrawal symptoms associated with this medication include sweating, muscle cramps, stomach cramps, seizures, tremors, vomiting, and unusual behaviors. [5]

Withdrawal symptoms may last anywhere from a few days to 12 months or longer. In severe cases, withdrawal symptoms may be fatal. Be aware that you may still experience these symptoms after you stop taking triazolam. [7]

Triazolam and integrated therapy

Evidence shows that most mental health medications are more effective when paired with psychotherapy, leading to better outcomes. [7] Since this medication is only recommended for short-term use, individuals using it to manage insomnia should pair the drug with integrated therapies. This may involve talk therapy modalities such as Cognitive Behavioral Therapy for Insomnia (CBT-I).

This approach helps individuals address unhealthy behaviors and thought patterns that may contribute to sleep difficulties. CBT-I can also assist with managing withdrawal symptoms after someone stops taking this medication.

Triazolam FAQs

Is triazolam a controlled substance?

Yes, triazolam is a Schedule IV controlled substance in the United States. Being a Schedule IV medication, this drug carries a lower risk of dependence, misuse, and addiction than Schedule I, II, and III medications do. However, there is still a risk, so this medication should be used with caution under a doctor’s supervision.

Is triazolam hard to stop using?

People taking triazolam may have some difficulty sleeping once they stop the medication. They may also experience withdrawal symptoms, especially if they abruptly stop taking the medication or lower their dosage without a doctor’s supervision.

Brittany Ferri

Author

Brittany Ferri

Brittany Ferri holds a PhD in Integrative Mental Health and is an occupational therapist, health writer, medical reviewer, and book author.

Activity History - Last updated: March 26, 2026, Published date: March 26, 2026


Kaye Smith

Reviewer

Dr. Smith is a behavioral health coach, clinician, writer, and educator with over 15 years of experience in psychotherapy, coaching, teaching, and writing.

Activity History - Medically reviewed on April 8, 2026 and last checked on March 26, 2026