topiramate   Click here for help

GtoPdb Ligand ID: 6849

Synonyms: epitomax | Eprontia® (liquid formulation) | MCN-4853 | RWJ-17021 | Topamax®
Approved drug PDB Ligand
topiramate is an approved drug (FDA (1996))
Compound class: Synthetic organic
Comment: A multifunctional compound: inhibits carbonic anhydrases II and IV, positively modulates GABA-A receptor anion channels, blocks sodium channel alpha subunits and behaves as an antagonist at the ionotropic glutamate receptors (AMPA and kainate).
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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

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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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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 9
Hydrogen bond donors 1
Rotatable bonds 3
Topological polar surface area 123.92
Molecular weight 339.1
XLogP -1.2
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 NS(=O)(=O)OCC12OCC3C(C2OC(O1)(C)C)OC(O3)(C)C
Isomeric SMILES NS(=O)(=O)OC[C@]12OC[C@@H]3[C@H]([C@@H]2OC(O1)(C)C)OC(O3)(C)C
InChI InChI=1S/C12H21NO8S/c1-10(2)18-7-5-16-12(6-17-22(13,14)15)9(8(7)19-10)20-11(3,4)21-12/h7-9H,5-6H2,1-4H3,(H2,13,14,15)/t7-,8-,9+,12+/m1/s1
InChI Key KJADKKWYZYXHBB-XBWDGYHZSA-N
No information available.
Summary of Clinical Use Click here for help
Used to treat epilepsy in adults and children (including treatment of Lennox-Gastaut syndrome). Also used to prevent migraine. A combination product containing phentermine + extended-release topiramate may be used for the management of obesity (n.b. the EMA refused approval of this combination for this indication in May 2013).

Two small randomized, placebo-controlled pilot studies suggested that the GABA potentiating action of topiramate may be harnessed as a treatment to help reduce alcohol intake in problem drinkers [1], and as a smoking cessation aid [3].
Mechanism Of Action and Pharmacodynamic Effects Click here for help
An anticonvulsant drug; enhances GABA-activated chloride channels and inhibits excitatory neurotransmission, through actions on kainate and AMPA receptors.
External links Click here for help
For extended ADME data see the following:

Electronic Medicines Compendium (eMC)
Drugs.com