Drug/Small Molecule:
triazolam

2D structure

Overview

Generic Names: DEA No. 2887; Triazolamum [INN-Latin]
Trade Names: Alti-Triazolam; Apo-Triazo; Clorazolam; Gen-Triazolam; Halcion; Novidorm; Novo-Triolam; Novodorm; Songar
PharmGKB Accession Id: PA451753

Description

Withdrawn in the United Kingdom due to risk of psychiatric adverse drug reactions. This drug continues to be available in the U.S. Internationally, triazolam is a Schedule IV drug under the Convention on Psychotropic Substances. (source: Drug Bank)

Indication

For the short-term treatment of insomnia. (source: Drug Bank)

ATC Therapeutic Category

  • N05CD:Benzodiazepine derivatives

Pharmacology, Interactions, and Contraindications

Mechanism Of Action

Benzodiazepines bind nonspecifically to bezodiazepine receptors BNZ1, which mediates sleep, and BNZ2, which affects affects muscle relaxation, anticonvulsant activity, motor coordination, and memory. As benzodiazepine receptors are thought to be coupled to gamma-aminobutyric acid-A (GABA<sub>A</sub>) receptors, this enhances the effects of GABA by increasing GABA affinity for the GABA receptor. Binding of GABA to the site opens the chloride channel, resulting in a hyperpolarized cell membrane that prevents further excitation of the cell. (source: Drug Bank)

Pharmacology

A short-acting benzodiazepine used as a hypnotic agent in the treatment of insomnia. Some countries temporarily withdrew triazolam from the market because of concerns about adverse reactions, mostly psychological, associated with higher dose ranges. Its use at lower doses with appropriate care and labeling has been reaffirmed by the FDA and most other countries. Triazolam has a shorter half-life than chlordiazepoxide, flurazepam, and prazepam and does not generate active metabolites. (source: Drug Bank)

Absorption, Distribution, Metabolism, Elimination & Toxicity

Biotransformation

Hepatic. Small amounts of unmetabolized triazolam appear in the urine. (source: Drug Bank)

Absorption

Bioavailability is 44% (oral) and 53% (sublingual). (source: Drug Bank)

Toxicity

Symptoms of overdose include drowsiness, slurred speech, motor inco-ordination, coma, and respiratory depression. (source: Drug Bank)

Isomeric SMILES Code:

Cc1nnc2n1-c3ccc(cc3C(=NC2)c4ccccc4Cl)Cl (source: Drug Bank)

The following genes are in curated knowledge about this drug.

  Gene Relationship Evidence
Phenotype data available Genotype Data Available Literature annotations available Has annotations
CYP3A4
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  • PK
  • FA
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Publications
Phenotype data available Genotype Data Available Literature annotations available Has annotations
CYP3A5
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  •   
  • PK
  • FA
  •   
Publications
No phenotype data No genotype data Literature annotations available Not annotated
GABRA1
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  • PD
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  •   
  •   
Publications
No phenotype data No genotype data Literature annotations available Not annotated
GABRB2
  •   
  • PD
  •   
  •   
  •   
Publications
No phenotype data No genotype data Literature annotations available Not annotated
GABRG2
  •   
  • PD
  •   
  •   
  •   
Publications
Phenotype data available Genotype Data Available Literature annotations available Has annotations
NR1I2
  •   
  •   
  •   
  • FA
  •   
Publications

A list of non-curated publications that mention this drug along with other genes is available.

Drug Targets

Gene Description
TSPO Uncurated Annotation (source: Drug Bank)

The following drugs are in curated knowledge about this drug.

  Drug Relationship Evidence
No phenotype data No genotype data Literature annotations available Not annotated
modafinil
  •   
  •   
  • PK
  •   
  •   
Publications

A list of non-curated publications that mention this drug along with other drugs is available.

Drug Interactions

Drug Description
amprenavir Uncurated Annotation Amprenavir increases the effect and toxicity of benzodiazepine (source: Drug Bank)
atazanavir Uncurated Annotation Atazanavir increases the effect and toxicity of benzodiazepine (source: Drug Bank)
cimetidine Uncurated Annotation Cimetidine increases the effect and toxicity of benzodiazepine (source: Drug Bank)
clarithromycin Uncurated Annotation The macrolide increases the effect of the benzodiazepine (source: Drug Bank)
clozapine Uncurated Annotation Increased risk of toxicity (source: Drug Bank)
delavirdine Uncurated Annotation The antiviral agent increases the effect and toxicity of benzodiazepine (source: Drug Bank)
diltiazem Uncurated Annotation The calcium channel blocker increases the effect and toxicity of the benzodiazepine (source: Drug Bank)
efavirenz Uncurated Annotation The antiviral agent increases the effect and toxicity of benzodiazepine (source: Drug Bank)
erythromycin Uncurated Annotation The macrolide increases the effect of the benzodiazepine (source: Drug Bank)
fluconazole Uncurated Annotation Fluconazole increases the effect of the benzodiazepine (source: Drug Bank)
fosamprenavir Uncurated Annotation Amprenavir increases the effect and toxicity of benzodiazepine (source: Drug Bank)
indinavir Uncurated Annotation The protease inhibitor increases the effect of the benzodiazepine (source: Drug Bank)
itraconazole Uncurated Annotation The imidazole increases the effect of the benzodiazepine (source: Drug Bank)
ketoconazole Uncurated Annotation The imidazole increases the effect of the benzodiazepine (source: Drug Bank)
mephenytoin Uncurated Annotation Possible increased levels of the hydantoin, decrease of benzodiazepine (source: Drug Bank)
modafinil Uncurated Annotation Modafinil decreases the effect of triazolam (source: Drug Bank)
nefazodone Uncurated Annotation Nefazodone increases the effect of triazolam (source: Drug Bank)
nelfinavir Uncurated Annotation The protease inhibitor increases the effect of the benzodiazepine (source: Drug Bank)
omeprazole Uncurated Annotation Omeprazole increases the effect of the benzodiazepine (source: Drug Bank)
phenytoin Uncurated Annotation Possible increased levels of the hydantoin, decrease of benzodiazepine (source: Drug Bank)
rifampin Uncurated Annotation Rifampin decreases the effect of the benzodiazepine (source: Drug Bank)
ritonavir Uncurated Annotation The protease inhibitor increases the effect of the benzodiazepine (source: Drug Bank)
saquinavir Uncurated Annotation The protease inhibitor increases the effect of the benzodiazepine (source: Drug Bank)
telithromycin Uncurated Annotation Telithromycin increases the effect/toxicity of the benzodiazepine (source: Drug Bank)
verapamil Uncurated Annotation The calcium channel blocker increases the effect and toxicity of the benzodiazepine (source: Drug Bank)
voriconazole Uncurated Annotation The imidazole increases the effect of the benzodiazepine (source: Drug Bank)

Non-Curated Information

A list of non-curated publications that mention this drug along with other diseases is available.

Additional Datasets

These datasets are minimally curated and are sorted alphabetically by title.

  1. Physicochemical determinants of human renal clearance

LinkOuts

Web Resource:
Wikipedia
DrugBank:
DB00897
KEGG Drug ID:
D00387
PubChem Compound ID:
5556
PubChem Substance ID:
7847453

Common Searches

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Non-Curated Publications

A list of non-curated publications that mention this drug is available.

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