trazodone   Click here for help

GtoPdb Ligand ID: 213

Synonyms: AF-1161 | Desyrel® | Molipaxin® | Oleptro®
Approved drug
trazodone is an approved drug (FDA (1981))
Compound class: Synthetic organic
Comment: Marketed formulations may contain trazodone hydrochloride (PubChem CID 62935).
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Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

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View interactive charts of activity data across species

IUPHAR Pharmacology Education Project (PEP) logo

View more information in the IUPHAR Pharmacology Education Project: trazodone

2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Click here for structure editor
Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the CDK toolkit. All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 4
Hydrogen bond donors 0
Rotatable bonds 5
Topological polar surface area 45.78
Molecular weight 371.15
XLogP 3.94
No. Lipinski's rules broken 0
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

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Canonical SMILES Clc1cccc(c1)N1CCN(CC1)CCCn1nc2n(c1=O)cccc2
Isomeric SMILES Clc1cccc(c1)N1CCN(CC1)CCCn1nc2n(c1=O)cccc2
InChI InChI=1S/C19H22ClN5O/c20-16-5-3-6-17(15-16)23-13-11-22(12-14-23)8-4-10-25-19(26)24-9-2-1-7-18(24)21-25/h1-3,5-7,9,15H,4,8,10-14H2
InChI Key PHLBKPHSAVXXEF-UHFFFAOYSA-N
No information available.
Summary of Clinical Use Click here for help
Used in the treatment of major depressive disorder.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Primarily acts as an antagonist of the serotonin 5-HT2A and 5-HT2C receptors. May have some inhibitory effect on serotonin reuptake via the serotonin transporter (SERT, SLC6A4).
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT04302870 Motor Neurone Disease - Systematic Multi-Arm Adaptive Randomised Trial Phase 2/Phase 3 Interventional University of Edinburgh Trazodone is one of the drugs being evaluated in the 'multi-arm' MND-SMART study as a therapeutic option for MND/ALS.
External links Click here for help
For extended ADME data see the following:

Electronic Medicines Compendium (eMC)
Drugs.com