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IdentificationPharmacologyInteractionsReferencesTrialsEconomicsPropertiesSpectraTaxonomyIdentification
- Name
- Prazepam
- Accession Number
- DB01588
- Type
- Small Molecule
- Groups
- Approved, Illicit
- Description
Prazepam is a benzodiazepine that is used in the treatment of anxiety disorders. It is a schedule IV drug in the U.S.
- Structure
Structure for Prazepam (DB01588)
- Synonyms
- Prazepamum
- External IDs
- W 4020
- International/Other Brands
- Centrax / Demetrin / Lysanxia / Sedapran / Trepidan
- Categories
- Anti-Anxiety Agents
- Benzazepines
- Benzodiazepines and benzodiazepine derivatives
- Benzodiazepinones
- Central Nervous System Agents
- Central Nervous System Depressants
- Cytochrome P-450 CYP3A Substrates
- Cytochrome P-450 CYP3A4 Substrates
- GABA Agents
- GABA Modulators
- Nervous System
- Neurotransmitter Agents
- Psycholeptics
- Psychotropic Drugs
- Tranquilizing Agents
- UNII
- Q30VCC064M
- CAS number
- 2955-38-6
- Weight
- Average: 324.804
Monoisotopic: 324.102940883 - Chemical Formula
- C19H17ClN2O
- InChI Key
- MWQCHHACWWAQLJ-UHFFFAOYSA-N
- InChI
- InChI=1S/C19H17ClN2O/c20-15-8-9-17-16(10-15)19(14-4-2-1-3-5-14)21-11-18(23)22(17)12-13-6-7-13/h1-5,8-10,13H,6-7,11-12H2
- IUPAC Name
- 7-chloro-1-(cyclopropylmethyl)-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-2-one
- SMILES
- ClC1=CC2=C(C=C1)N(CC1CC1)C(=O)CN=C2C1=CC=CC=C1
Pharmacology
- Indication
For the treatment of anxiety disorders.
- Pharmacodynamics
Prazepam is a benzodiazepine derivative drug. It possesses anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties. Benzodiazepines may be habit-forming (causing mental or physical dependence), especially when taken for a long time or in high doses.
- Mechanism of action
Prazepam is believed to stimulate GABA receptors in the ascending reticular activating system. Since GABA is inhibitory, receptor stimulation increases inhibition and blocks both cortical and limbic arousal following stimulation of the brain stem reticular formation.
- Absorption
- Not Available
- Volume of distribution
- Not Available
- Protein binding
- Not Available
- Metabolism
Hepatic.
- Route of elimination
- Not Available
- Half life
36-200 hours
- Clearance
- Not Available
- Toxicity
Symptoms of overdose include somnolence, confusion, coma, and diminished reflexes. Respiration, pulse and blood pressure should be monitored.
- Affected organisms
- Humans and other mammals
- Pathways
- Not Available
- Pharmacogenomic Effects/ADRs
- Not Available
Interactions
- Drug Interactions
Drug Interaction (R)-warfarin The metabolism of (R)-warfarin can be decreased when combined with Prazepam. (S)-Warfarin The metabolism of (S)-Warfarin can be decreased when combined with Prazepam. 2,5-Dimethoxy-4-ethylthioamphetamine The risk or severity of adverse effects can be increased when Prazepam is combined with 2,5-Dimethoxy-4-ethylthioamphetamine. 3-isobutyl-1-methyl-7H-xanthine The therapeutic efficacy of Prazepam can be decreased when used in combination with 3-isobutyl-1-methyl-7H-xanthine. 3,4-Methylenedioxyamphetamine The risk or severity of adverse effects can be increased when 3,4-Methylenedioxyamphetamine is combined with Prazepam. 3,5-diiodothyropropionic acid The metabolism of 3,5-diiodothyropropionic acid can be decreased when combined with Prazepam. 4-Bromo-2,5-dimethoxyamphetamine The risk or severity of adverse effects can be increased when 4-Bromo-2,5-dimethoxyamphetamine is combined with Prazepam. 4-hydroxycoumarin The metabolism of 4-hydroxycoumarin can be decreased when combined with Prazepam. 4-Methoxyamphetamine The risk or severity of adverse effects can be increased when 4-Methoxyamphetamine is combined with Prazepam. 5-androstenedione The metabolism of Prazepam can be decreased when combined with 5-androstenedione. - Food Interactions
- Avoid alcohol.
- Avoid excessive quantities of coffee or tea (Caffeine).
- Avoid taking with grapefruit juice.
- Take with food.
References
- General References
- Not Available
- External Links
- ATC Codes
- N05BA11 — Prazepam
Clinical Trials
Pharmacoeconomics
- Manufacturers
- Not Available
- Packagers
- Physicians Total Care Inc.
- Dosage forms
- Not Available
- Prices
Unit description Cost Unit Doral 15 mg tablet 3.41USD tablet Doral 7.5 mg tablet 3.37USD tablet DrugBank does not sell nor buy drugs. Pricing information is supplied for informational purposes only.- Patents
- Not Available
Properties
- State
- Solid
- Experimental Properties
Property Value Source melting point (°C) 145-146 °C PhysProp logP 3.73 HANSCH,C ET AL. (1995) - Predicted Properties
Property Value Source Water Solubility 0.00399 mg/mL ALOGPS logP 3.68 ALOGPS logP 3.86 ChemAxon logS -4.9 ALOGPS pKa (Strongest Basic) 3.06 ChemAxon Physiological Charge 0 ChemAxon Hydrogen Acceptor Count 2 ChemAxon Hydrogen Donor Count 0 ChemAxon Polar Surface Area 32.67 Å2 ChemAxon Rotatable Bond Count 3 ChemAxon Refractivity 91.75 m3·mol-1 ChemAxon Polarizability 34.77 Å3 ChemAxon Number of Rings 4 ChemAxon Bioavailability 1 ChemAxon Rule of Five Yes ChemAxon Ghose Filter Yes ChemAxon Veber's Rule Yes ChemAxon MDDR-like Rule No ChemAxon - Predicted ADMET features
Property Value Probability Human Intestinal Absorption + 0.9821 Blood Brain Barrier + 0.9934 Caco-2 permeable + 0.6922 P-glycoprotein substrate Substrate 0.6631 P-glycoprotein inhibitor I Inhibitor 0.7452 P-glycoprotein inhibitor II Inhibitor 0.6438 Renal organic cation transporter Inhibitor 0.6625 CYP450 2C9 substrate Non-substrate 0.7317 CYP450 2D6 substrate Non-substrate 0.8332 CYP450 3A4 substrate Substrate 0.7471 CYP450 1A2 substrate Inhibitor 0.861 CYP450 2C9 inhibitor Inhibitor 0.5153 CYP450 2D6 inhibitor Non-inhibitor 0.7477 CYP450 2C19 inhibitor Inhibitor 0.7793 CYP450 3A4 inhibitor Inhibitor 0.6455 CYP450 inhibitory promiscuity High CYP Inhibitory Promiscuity 0.7974 Ames test Non AMES toxic 0.8623 Carcinogenicity Non-carcinogens 0.8138 Biodegradation Not ready biodegradable 1.0 Rat acute toxicity 1.8779 LD50, mol/kg Not applicable hERG inhibition (predictor I) Weak inhibitor 0.9819 hERG inhibition (predictor II) Non-inhibitor 0.5471
Spectra
- Mass Spec (NIST)
- Not Available
- Spectra
Spectrum Spectrum Type Splash Key Predicted GC-MS Spectrum - GC-MS Predicted GC-MS Not Available Mass Spectrum (Electron Ionization) MS splash10-00r5-3391000000-0113e86cca51d223d412 Predicted MS/MS Spectrum - 10V, Positive (Annotated) Predicted LC-MS/MS Not Available Predicted MS/MS Spectrum - 20V, Positive (Annotated) Predicted LC-MS/MS Not Available Predicted MS/MS Spectrum - 40V, Positive (Annotated) Predicted LC-MS/MS Not Available Predicted MS/MS Spectrum - 10V, Negative (Annotated) Predicted LC-MS/MS Not Available Predicted MS/MS Spectrum - 20V, Negative (Annotated) Predicted LC-MS/MS Not Available Predicted MS/MS Spectrum - 40V, Negative (Annotated) Predicted LC-MS/MS Not Available
Taxonomy
- Description
- This compound belongs to the class of organic compounds known as 1,4-benzodiazepines. These are organic compounds containing a benzene ring fused to a 1,4-azepine.
- Kingdom
- Organic compounds
- Super Class
- Organoheterocyclic compounds
- Class
- Benzodiazepines
- Sub Class
- 1,4-benzodiazepines
- Direct Parent
- 1,4-benzodiazepines
- Alternative Parents
- Alpha amino acids and derivatives / Benzene and substituted derivatives / Aryl chlorides / Tertiary carboxylic acid amides / Lactams / Ketimines / Propargyl-type 1,3-dipolar organic compounds / Azacyclic compounds / Organopnictogen compounds / Organochlorides show 3 more
- Substituents
- 1,4-benzodiazepine / Alpha-amino acid or derivatives / Aryl chloride / Aryl halide / Monocyclic benzene moiety / Benzenoid / Tertiary carboxylic acid amide / Carboxamide group / Ketimine / Lactam show 16 more
- Molecular Framework
- Aromatic heteropolycyclic compounds
- External Descriptors
- benzodiazepine (CHEBI:8362)
Targets
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine...
- Gene Name
- GABRA1
- Uniprot ID
- P14867
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit alpha-1
- Molecular Weight
- 51801.395 Da
References
- Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [PubMed:17139284]
- Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. [PubMed:17016423]
- Amin J, Brooks-Kayal A, Weiss DS: Two tyrosine residues on the alpha subunit are crucial for benzodiazepine binding and allosteric modulation of gamma-aminobutyric acidA receptors. Mol Pharmacol. 1997 May;51(5):833-41. [PubMed:9145922]
- Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [PubMed:11752352]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name
- GABRA2
- Uniprot ID
- P47869
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit alpha-2
- Molecular Weight
- 51325.85 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name
- GABRA3
- Uniprot ID
- P34903
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit alpha-3
- Molecular Weight
- 55164.055 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Transporter activity
- Specific Function
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name
- GABRA5
- Uniprot ID
- P31644
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit alpha-5
- Molecular Weight
- 52145.645 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name
- GABRG1
- Uniprot ID
- Q8N1C3
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit gamma-1
- Molecular Weight
- 53594.49 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine...
- Gene Name
- GABRG2
- Uniprot ID
- P18507
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit gamma-2
- Molecular Weight
- 54161.78 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name
- GABRG3
- Uniprot ID
- Q99928
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit gamma-3
- Molecular Weight
- 54288.16 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Ligand-gated ion channel activity
- Specific Function
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine...
- Gene Name
- GABRB1
- Uniprot ID
- P18505
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit beta-1
- Molecular Weight
- 54234.085 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine...
- Gene Name
- GABRB2
- Uniprot ID
- P47870
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit beta-2
- Molecular Weight
- 59149.895 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Gaba-gated chloride ion channel activity
- Specific Function
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine...
- Gene Name
- GABRB3
- Uniprot ID
- P28472
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit beta-3
- Molecular Weight
- 54115.04 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Gaba-a receptor activity
- Specific Function
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name
- GABRD
- Uniprot ID
- O14764
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit delta
- Molecular Weight
- 50707.835 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name
- GABRE
- Uniprot ID
- P78334
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit epsilon
- Molecular Weight
- 57971.175 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Gaba-a receptor activity
- Specific Function
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. In the ute...
- Gene Name
- GABRP
- Uniprot ID
- O00591
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit pi
- Molecular Weight
- 50639.735 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Gaba-a receptor activity
- Specific Function
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. Rho-1 GABA...
- Gene Name
- GABRR1
- Uniprot ID
- P24046
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit rho-1
- Molecular Weight
- 55882.91 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Gaba-a receptor activity
- Specific Function
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. Rho-2 GABA...
- Gene Name
- GABRR2
- Uniprot ID
- P28476
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit rho-2
- Molecular Weight
- 54150.41 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Potentiator
- General Function
- Gaba-a receptor activity
- Specific Function
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name
- GABRR3
- Uniprot ID
- A8MPY1
- Uniprot Name
- Gamma-aminobutyric acid receptor subunit rho-3
- Molecular Weight
- 54271.1 Da
References
- Schove LT, Perez JJ, Loew GH: Molecular determinants of recognition and activation at the cerebellar benzodiazepine receptor site. Bioorg Med Chem. 1994 Oct;2(10):1029-49. [PubMed:7773620]
17. GABA-A receptor (anion channel)
Yes
Positive allosteric modulator
References
- ChEMBL Compound Report Card [Link]
Enzymes
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Vitamin d3 25-hydroxylase activity
- Specific Function
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation react...
- Gene Name
- CYP3A4
- Uniprot ID
- P08684
- Uniprot Name
- Cytochrome P450 3A4
- Molecular Weight
- 57342.67 Da
References
- Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256]
Drug created on August 29, 2007 09:29 / Updated on November 02, 2018 05:03