section name header

Pronunciation

trye-AZ-oh-lam

Classifications

Therapeutic Classification: sedative/hypnotics

Pharmacologic Classification: benzodiazepines

Indications

BEERS REMS


Action

  • Acts at many levels in the CNS, producing generalized depression.
  • Effects may be mediated by GABA, an inhibitory neurotransmitter.
Therapeutic effects:
  • Relief of insomnia.

Pharmacokinetics

Absorption: Well absorbed following oral administration.

Distribution: Widely distributed, crosses blood-brain barrier.

Metabolism/Excretion: Primarily metabolized by the liver via the CYP3A4 isoenzyme. Primarily excreted in urine as metabolites.

Half-Life: 1.6–5.4 hr.

Time/Action Profile

(sedation)

ROUTEONSETPEAKDURATION
PO15–30 min6–8 hrunknown





Contraind./Precautions

Contraindicated in:

Use Cautiously in:

Adv. Reactions/Side Effects

Derm: rash

EENT: blurred vision

GI: constipation, diarrhea, nausea, vomiting

Neuro: dizziness, excessive sedation, hangover, headache, abnormal thinking, anterograde amnesia, behavior changes, confusion, depression, hallucinations, lethargy, paradoxical excitation, sleep-driving

Misc: physical dependence, psychological dependence, tolerance

Interactions

Drug-drug:

Drug-Natural Products:

Route/Dosage

Availability

(Generic available)

Assessment

Toxicity and Overdose:

Implementation

Patient/Family Teaching

Evaluation/Desired Outcomes

US Brand Names

Halcion

Contr. Subst. Schedule

Schedule IV (C-IV)