The below information on Halcion has been taken from official FDA sources, but we cannot guarantee it's accuracy. Please use this site for educational purposes only. This site does not replace a proper discussion with your doctor.

    Brand Name:Halcion
This drug was approved by the FDA in one form or another on:
1982-11-15 ,
This drug is made in one form or another by the following companies:
Pharmacia & Upjohn, Inc.
This drug is available in the following forms:
View the actual FDA approved label for this drug at the following links:
Not Available.

About Halcion

Halcion is used for:

Treating insomnia (trouble sleeping). It may also be used for other conditions as determined by your doctor.

Halcion is a benzodiazepine. It works by depressing the central nervous system (brain), causing drowsiness to aid in falling asleep.

Side Effects of Halcion

Possible side effects of Halcion :

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:

  • Clumsiness or unsteadiness;
  • daytime drowsiness;
  • dizziness;
  • fatigue;
  • feeling of hangover;
  • headache;
  • lightheadedness;
  • nausea;
  • nervousness;
  • sluggishness;
  • unusual weakness.
Seek medical attention right away if any of these SEVERE side effects occur:
  • Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue);
  • aggressiveness;
  • chest pain;
  • fast heartbeat;
  • hallucinations;
  • increased anxiety;
  • memory loss;
  • mental or mood changes;
  • new or worsening depression;
  • slurred speech;
  • suicidal thoughts;
  • unusual thoughts or behavior;
  • urinary changes;
  • vision changes;
  • worsening trouble sleeping;
  • yellowing of the eyes or skin.

Who Should Not Take Halcion

Do NOT use Halcion if:

  • you are allergic to any ingredient in Halcion or to other benzodiazepines (eg, temazepam)
  • you are pregnant
  • you have a severe mental disorder, angle-closure glaucoma, or severe liver disease
  • you are taking clozapine, delavirdine, efavirenz, HIV protease inhibitors (eg, ritonavir), itraconazole, ketoconazole, nefazodone, or sodium oxybate (GHB)

Contact your doctor or health care provider right away if any of these apply to you.

Interactions with Halcion

Some MEDICINES MAY INTERACT with Halcion . Tell your health care provider if you are taking any other medicines, especially any of the following:

  • Rifampin or St. John's wort because effectiveness of Halcion may be decreased
  • Clozapine because dangerous side effects, such as confusion; sedation; excess salivation; unsteady movements; lightheadedness, especially upon standing; difficult or slow breathing; or drowsiness leading to unresponsiveness or coma, may occur
  • Sodium oxybate (GHB) because an increase in sleep duration and decrease in the ability to breath are likely to occur
  • Amiodarone, azole antifungals (eg, ketoconazole , itraconazole), calcium channel blockers (eg, diltiazem, nifedipine), cimetidine, cyclosporine, delavirdine, efavirenz, fluvoxamine, ergot alkaloids (eg, ergotamine), HIV protease inhibitors (eg, ritonavir), hormonal contraceptives (eg, birth control pills), isoniazid, ketolides (eg, telithromycin), macrolides (eg, erythromycin), nefazodone, omeprazole, ranitidine, or valproic acid because they may increase the actions and side effects of Halcion
  • Anticonvulsants (eg, phenytoin, phenobarbital) or antihistamines (eg, diphenhydramine) because the actions and side effects may be increased by Halcion
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Recent Forum Posts on Halcion

Top class sleep induction

HALCION, TRIAZOLAM tabs by PFIZER/UPJOHN available in 125 and 250mcg strengths (therefore EXTREMELY HIGH POTENCY) is a benzodiazepine with a half life of <1.5 hours, allowing for S4 REM sleep, as its action is so short, is one of two extremely effective sleep inducers on the market. Imprinted (250mcg) 'UPJOHN 17' on an ovoid, flat tablet like the same company's XANAX of 1mg and below but flat rather than biconvex, with single score on the reverse. It can take as little as 20 minutes to reach a blood plasma level where sleep comes quickly. Halcion has been known to be abused by taking large dosages (1g and more) during the daytime as it does make the user feel a bit euphoric and 'high'. The usual dose is 250mcg 20 mins before sleep required; some people, in particular those using another benzodiazepine for anxiety, panic, as an anti-convulsant or skeletomuscular relaxant, may require 500mcg to get the same effect. Personally I find Halcion to be a most excellent drug for when ai have trouble getting off to sleep. It is NOT designed for sleep maintenance, as the half life is so short that it is practically clear of the system within a couple of hours. As a specialist triazolobenzodiazepine, I would rate Halcion a rather good 9/10. It does what it says on the box, and that very well,indeed. ;)

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