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Human Metabolome Database Version 3.5

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Showing metabocard for Topiramate (HMDB05034)

Record Information
Version 3.5
Creation Date 2006-05-18 02:50:34 -0600
Update Date 2013-02-08 17:13:49 -0700
HMDB ID HMDB05034
Secondary Accession Numbers None
Metabolite Identification
Common Name Topiramate
Description Topiramate is an anticonvulsant drug used to treat epilepsy in both children and adults. In children it is also indicated for treatment of Lennox-Gastaut syndrome (a disorder that causes seizures and developmental delays). It is also Food and Drug Administration (FDA) approved, and now most frequently prescribed for, the prevention of migraines. It has been used by psychiatrists to treat bipolar disorder, although it is not FDA approved for this purpose and such use is somewhat controversial. This drug has been investigated for use in treatment of obesity, especially to aid in the reduction of binge eating, and also as a possible treatment for alcoholism. However, these uses are not actively promoted by the manufacturer, and like its use for bipolar disorder, are 'off-label' uses. The drug is also used in clinical trials to treat Post Traumatic Stress Disorder. A pilot study suggests that Topiramate is possibly effective against infantile spasm; Chemically, topiramate is a sulfamate-substituted monosaccharide, related to fructose, a rather unusual chemical structure for an anticonvulsant. Topiramate is quickly absorbed after oral use. Most of the drug (70%) is excreted in the urine as unchanged drug. The remainder is extensively metabolized by hydroxylation, hydrolysis, and glucuronidation. Six metabolites have been identified in humans, none of which constitutes more than 5% of an administered dose. Topiramate enhances GABA-activated chloride channels. In addition, topiramate inhibits excitatory neurotransmission, through actions on kainate and AMPA receptors. There is evidence that topiramate has a specific effect on GluR5 kainate receptors. It is also an inhibitor of carbonic anhydrase, particularly subtypes II and IV, but this action is weak and unlikely to be related to its anticonvulsant actions, but may account for the bad taste and the development of renal stones seen during treatment. Its possible effect as a mood stabilizer seems to occur before anticonvulsant qualities at lower dosages. Topiramate inhibits maximal electroshock and pentylenetetrazol-induced seizures as well as partial and secondarily generalized tonic-clonic seizures in the kindling model, findings predictive of a broad spectrum of antiseizure activities clinically; Johnson. It is used to treat epilepsy in both children and adults. In children it is also indicated for treatment of Lennox-Gastaut syndrome (a disorder that causes seizures and developmental delays). It is also Food and Drug Administration (FDA) approved for, and now most frequently prescribed for, the prevention of migraines. It has been used by psychiatrists to treat bipolar disorder, although it is not FDA approved for this purpose and such use is somewhat controversial. This drug has been investigated for use in treatment of obesity, especially to aid in the reduction of binge eating, and also as a possible treatment for alcoholism. However, these uses are not actively promoted by the manufacturer, and like its use for bipolar disorder, are 'off-label' uses. The drug is also used in clinical trials to treat Post Traumatic Stress Disorder. A pilot study suggests that Topiramate is possibly effective against infantile spasm. In May 2006 the U.S. National Institutes of Health web site clinicaltrials.gov listed several studies sponsored by Ortho-McNeil which propose to examine the use of topiramate on migraine, cluster, and severe headaches within various demographics; Topiramate (brand name: Topamax) is an anticonvulsant drug produced by Ortho-McNeil, a division of Johnson & Topiramate (brand name: Topamax) is an anticonvulsant drug produced by Ortho-McNeil, a division of Johnson & Johnson. It is used to treat epilepsy in both children and adults. In children it is also indicated for treatment of Lennox-Gastaut syndrome (a disorder that causes seizures and developmental delays). It is also Food and Drug Administration (FDA) approved for, and now most frequently prescribed for, the prevention of migraines. It has been used by psychiatrists to treat bipolar disorder, although it is not FDA approved for this purpose and such use is somewhat controversial. This drug has been investigated for use in treatment of obesity, especially to aid in the reduction of binge eating, and also as a possible treatment for alcoholism. However, these uses are not actively promoted by the manufacturer, and like its use for bipolar disorder, are 'off-label' uses. The drug is also used in clinical trials to treat Post Traumatic Stress Disorder. A pilot study suggests that Topiramate is possibly effective against infantile spasm. In May 2006 the U.S. National Institutes of Health web site clinicaltrials.gov listed several studies sponsored by Ortho-McNeil which propose to examine the use of topiramate on migraine, cluster, and severe headaches within various demographics.
Structure Thumb
Download: MOL | SDF | SMILES | InChI
Display: 2D Structure | 3D Structure
Synonyms
  1. Epitomax
  2. Topamax
  3. Topamax Sprinkle
  4. Topiramate
  5. Topomax
Chemical Formula C12H21NO8S
Average Molecular Weight 339.362
Monoisotopic Molecular Weight 339.098787343
IUPAC Name [(1R,2S,6S,9R)-4,4,11,11-tetramethyl-3,5,7,10,12-pentaoxatricyclo[7.3.0.0^{2,6}]dodecan-6-yl]methyl sulfamate
Traditional IUPAC Name topiramate
CAS Registry Number 97240-79-4
SMILES CC1(C)O[C@@H]2CO[C@@]3(COS(N)(=O)=O)OC(C)(C)O[C@H]3[C@@H]2O1
InChI Identifier 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
Chemical Taxonomy
Kingdom Organic Compounds
Super Class Aliphatic Heteropolycyclic Compounds
Class Dioxolopyrans
Sub Class N/A
Other Descriptors
  • Aliphatic Heteropolycyclic Compounds
  • cyclic ketal(ChEBI)
  • ketohexose derivative(ChEBI)
  • sulfamate ester(ChEBI)
Substituents
  • Acetal
  • Meta Dioxolane
  • Organic Sulfuric Acid Amide Ester
  • Oxane
  • Sulfamic Acid Derivative
Direct Parent Dioxolopyrans
Ontology
Status Detected and Quantified
Origin
  • Drug
Biofunction Not Available
Application Not Available
Cellular locations
  • Membrane (predicted from logP)
Physical Properties
State Solid
Experimental Properties
Property Value Reference
Melting Point 125 - 126 °C Not Available
Boiling Point Not Available Not Available
Water Solubility Not Available Not Available
LogP Not Available Not Available
Predicted Properties
Property Value Source
Water Solubility 6.8 g/L ALOGPS
LogP 1.29 ALOGPS
LogP 0.13 ChemAxon
LogS -1.70 ALOGPS
pKa (strongest acidic) 11.09 ChemAxon
pKa (strongest basic) -3.7 ChemAxon
Hydrogen Acceptor Count 8 ChemAxon
Hydrogen Donor Count 1 ChemAxon
Polar Surface Area 115.54 A2 ChemAxon
Rotatable Bond Count 3 ChemAxon
Refractivity 72.3 ChemAxon
Polarizability 32.28 ChemAxon
Formal Charge 0 ChemAxon
Physiological Charge 0 ChemAxon
Spectra
Not Available
Biological Properties
Cellular Locations
  • Membrane (predicted from logP)
Biofluid Locations
  • Blood
Tissue Location
  • Brain
  • Prostate
Pathways Not Available
Normal Concentrations
Biofluid Status Value Age Sex Condition Comments
Blood Detected and Quantified
Article_icon
1.47 +/- 0.03 uM Adult (>18 years old) Both Normal Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease References None
Associated OMIM IDs None
DrugBank ID Not Available
Phenol Explorer Compound ID Not Available
Phenol Explorer Metabolite ID Not Available
FoodDB ID FDB023601
KNApSAcK ID Not Available
Chemspider ID 4447672 Link_out
KEGG Compound ID C07502 Link_out
BioCyc ID Not Available
BiGG ID Not Available
Wikipedia Link Topiramate Link_out
NuGOwiki Link HMDB05034 Link_out
Metagene Link HMDB05034 Link_out
METLIN ID Not Available
PubChem Compound 5284627 Link_out
PDB ID TOR Link_out
ChEBI ID 63631 Link_out
References
Synthesis Reference Maryanoff, Bruce E.; Gardocki, Joseph F. Anticonvulsant sulfamate derivatives. U.S. (1985), CODEN: USXXAM US 4513006 A 19850423 CAN 103:37701 AN 1985:437701
Material Safety Data Sheet (MSDS) Download (PDF)
General References
  1. Petroff OA, Hyder F, Mattson RH, Rothman DL: Topiramate increases brain GABA, homocarnosine, and pyrrolidinone in patients with epilepsy. Neurology. 1999 Feb;52(3):473-8. Pubmed: 10025774 Link_out
  2. Sreekumar A, Poisson LM, Rajendiran TM, Khan AP, Cao Q, Yu J, Laxman B, Mehra R, Lonigro RJ, Li Y, Nyati MK, Ahsan A, Kalyana-Sundaram S, Han B, Cao X, Byun J, Omenn GS, Ghosh D, Pennathur S, Alexander DC, Berger A, Shuster JR, Wei JT, Varambally S, Beecher C, Chinnaiyan AM: Metabolomic profiles delineate potential role for sarcosine in prostate cancer progression. Nature. 2009 Feb 12;457(7231):910-4. Pubmed: 19212411 Link_out

Enzymes
Name: Cytochrome P450 2C19
Reactions:
  • (R)-limonene + NADPH + H+ + O2 = (+)-trans-carveol + NADP+ + H2O [RN:R06119]
Gene Name: CYP2C19
Uniprot ID: P33261 Link_out
Protein Sequence: FASTA
Gene Sequence: FASTA
Name: Glutamate receptor, ionotropic kainate 1
Reactions:
    Gene Name: GRIK1
    Uniprot ID: P39086 Link_out
    Protein Sequence: FASTA
    Gene Sequence: FASTA
    Name: Carbonic anhydrase 2
    Reactions:
    • H2CO3 = CO2 + H2O [RN:R00132]
    Gene Name: CA2
    Uniprot ID: P00918 Link_out
    Protein Sequence: FASTA
    Gene Sequence: FASTA
    Name: Carbonic anhydrase 4
    Reactions:
    • H2CO3 = CO2 + H2O [RN:R00132]
    Gene Name: CA4
    Uniprot ID: P22748 Link_out
    Protein Sequence: FASTA
    Gene Sequence: FASTA
    Name: Gamma-aminobutyric acid receptor subunit alpha-1
    Reactions:
      Gene Name: GABRA1
      Uniprot ID: P14867 Link_out
      Protein Sequence: FASTA
      Gene Sequence: FASTA
      Name: Sodium channel protein type 1 subunit alpha
      Reactions:
        Gene Name: SCN1A
        Uniprot ID: P35498 Link_out
        Protein Sequence: FASTA
        Gene Sequence: FASTA