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Identification
NameZonisamide
Accession NumberDB00909  (APRD00004)
TypeSmall Molecule
GroupsApproved, Investigational
Description

Zonisamide is a sulfonamide anticonvulsant approved for use as an adjunctive therapy in adults with partial-onset seizures. Zonisamide may be a carbonic anhydrase inhibitor although this is not one of the primary mechanisms of action. Zonisamide may act by blocking repetitive firing of voltage-gated sodium channels leading to a reduction of T-type calcium channel currents, or by binding allosterically to GABA receptors. This latter action may inhibit the uptake of the inhibitory neurotransmitter GABA while enhancing the uptake of the excitatory neurotransmitter glutamate.

Structure
Thumb
Synonyms
1,2-Benzisoxazole-3-methanesulfonamide
3-(Sulfamoylmethyl)-1,2-benzisoxazole
Benzo[D]isoxazol-3-yl-methanesulfonamide
Zonisamida
Zonisamidum
External Identifiers Not Available
Approved Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing End
Zonegrancapsule100 mg/1oralEisai Inc.2000-03-27Not applicableUs
Zonegrancapsule25 mg/1oralConcordia Pharmaceuticals Inc.2000-03-27Not applicableUs
Zonegrancapsule100 mg/1oralConcordia Pharmaceuticals Inc.2000-03-27Not applicableUs
Zonegrancapsule25 mg/1oralEisai Inc.2000-03-27Not applicableUs
Approved Generic Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing End
Direct Rxcapsule100 mg/1oralDIRECT RX2015-01-01Not applicableUs
Zonisamidecapsule50 mg/1oralDIRECT RX2014-01-01Not applicableUs
Zonisamidecapsule100 mg/1oralWockhardt Limited2005-12-22Not applicableUs
Zonisamidecapsule100 mg/1oralMylan Institutional Inc.2006-01-25Not applicableUs
Zonisamidecapsule100 mg/1oralAv Pak2014-07-02Not applicableUs
Zonisamidecapsule25 mg/1oralSTAT Rx USA LLC2006-07-27Not applicableUs
Zonisamidecapsule25 mg/1oralEon Labs, Inc.2005-12-22Not applicableUs
Zonisamidecapsule25 mg/1oralGlenmark Pharmaceuticals Inc., Usa2006-01-30Not applicableUs
Zonisamidecapsule25 mg/1oralWockhardt USA LLC.2006-07-27Not applicableUs
Zonisamidecapsule50 mg/1oralGlenmark Pharmaceuticals Inc., Usa2006-01-30Not applicableUs
Zonisamidecapsule50 mg/1oralDIRECT RX2015-01-01Not applicableUs
Zonisamidecapsule50 mg/1oralWockhardt Limited2006-07-27Not applicableUs
Zonisamidecapsule100 mg/1oralAv Pak2005-12-222016-01-15Us
Zonisamidecapsule100 mg/1oralSTAT Rx USA LLC2006-03-17Not applicableUs
Zonisamidecapsule100 mg/1oralAmerican Health Packaging2014-12-15Not applicableUs
Zonisamidecapsule50 mg/1oralbryant ranch prepack2006-07-27Not applicableUs
Zonisamidecapsule25 mg/1oralPd Rx Pharmaceuticals, Inc.2012-10-22Not applicableUs
Zonisamidecapsule100 mg/1oralNcs Health Care Of Ky, Inc Dba Vangard Labs2012-10-22Not applicableUs
Zonisamidecapsule100 mg/1oralAmerican Health Packaging2013-07-19Not applicableUs
Zonisamidecapsule25 mg/1oralbryant ranch prepack2006-03-17Not applicableUs
Zonisamidecapsule100 mg/1oralDIRECT RX2014-01-01Not applicableUs
Zonisamidecapsule25 mg/1oralWockhardt Limited2006-07-27Not applicableUs
Zonisamidecapsule100 mg/1oralBlue Point Laboratories2014-03-13Not applicableUs
Zonisamidecapsule100 mg/1oralbryant ranch prepack2006-03-17Not applicableUs
Zonisamidecapsule50 mg/1oralDIRECT RX2015-01-01Not applicableUs
Zonisamidecapsule50 mg/1oralDr. Reddy's Laboratories Limited2005-12-22Not applicableUs
Zonisamidecapsule100 mg/1oralLake Erie Medical & Surgical Supply DBA Quality Care Products LLC2012-02-14Not applicableUs
Zonisamidecapsule100 mg/1oralMylan Pharmaceuticals Inc.2012-10-22Not applicableUs
Zonisamidecapsule50 mg/1oralBlue Point Laboratories2014-03-13Not applicableUs
Zonisamidecapsule100 mg/1oralProficient Rx LP2006-01-30Not applicableUs
Zonisamidecapsule100 mg/1oralApotex Corp.2005-12-22Not applicableUs
Zonisamidecapsule25 mg/1oralDr. Reddy's Laboratories Limited2005-12-22Not applicableUs
Zonisamidecapsule100 mg/1oralAidarex Pharmaceuticals LLC2005-12-22Not applicableUs
Zonisamidecapsule50 mg/1oralMylan Pharmaceuticals Inc.2012-10-22Not applicableUs
Zonisamidecapsule25 mg/1oralBlue Point Laboratories2014-03-13Not applicableUs
Zonisamidecapsule100 mg/1oralSun Pharmaceutical Industries Limited2006-03-17Not applicableUs
Zonisamidecapsule25 mg/1oralLake Erie Medical DBA Quality Care Products LLC2006-01-30Not applicableUs
Zonisamidecapsule50 mg/1oralApotex Corp.2005-12-22Not applicableUs
Zonisamidecapsule100 mg/1oralDr. Reddy's Laboratories Limited2005-12-22Not applicableUs
Zonisamidecapsule100 mg/1oralCamber Pharmaceuticals2012-02-21Not applicableUs
Zonisamidecapsule25 mg/1oralMylan Pharmaceuticals Inc.2012-10-22Not applicableUs
Zonisamidecapsule25 mg/1oralApotex Corp.2005-12-22Not applicableUs
Zonisamidecapsule50 mg/1oralPhysicians Total Care, Inc.2010-12-29Not applicableUs
Zonisamidecapsule50 mg/1oralRebel Distributors Corp2006-03-17Not applicableUs
Zonisamidecapsule100 mg/1oralEon Labs, Inc.2005-12-22Not applicableUs
Zonisamidecapsule100 mg/1oralWockhardt USA LLC.2005-12-22Not applicableUs
Zonisamidecapsule50 mg/1oralSun Pharmaceutical Industries Limited2006-03-17Not applicableUs
Zonisamidecapsule100 mg/1oralExelan Pharmaceuticals, Inc.2006-07-05Not applicableUs
Zonisamidecapsule100 mg/1oralLake Erie Medical DBA Quality Care Products LLC2012-10-22Not applicableUs
Zonisamidecapsule100 mg/1oralPhysicians Total Care, Inc.2007-07-11Not applicableUs
Zonisamidecapsule100 mg/1oralRebel Distributors Corp2006-03-17Not applicableUs
Zonisamidecapsule50 mg/1oralEon Labs, Inc.2005-12-22Not applicableUs
Zonisamidecapsule50 mg/1oralWockhardt USA LLC.2006-07-27Not applicableUs
Zonisamidecapsule25 mg/1oralSun Pharmaceutical Industries Limited2006-03-17Not applicableUs
Zonisamidecapsule100 mg/1oralGlenmark Pharmaceuticals Inc., Usa2006-01-30Not applicableUs
Approved Over the Counter ProductsNot Available
Unapproved/Other Products Not Available
International Brands
NameCompany
ExceglanNot Available
ExcegramNot Available
ExcegranNot Available
Brand mixturesNot Available
SaltsNot Available
Categories
UNII459384H98V
CAS number68291-97-4
WeightAverage: 212.226
Monoisotopic: 212.025562822
Chemical FormulaC8H8N2O3S
InChI KeyInChIKey=UBQNRHZMVUUOMG-UHFFFAOYSA-N
InChI
InChI=1S/C8H8N2O3S/c9-14(11,12)5-7-6-3-1-2-4-8(6)13-10-7/h1-4H,5H2,(H2,9,11,12)
IUPAC Name
1,2-benzoxazol-3-ylmethanesulfonamide
SMILES
NS(=O)(=O)CC1=NOC2=CC=CC=C12
Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as benzisoxazoles. These are aromatic compounds containing a benzene ring fused to an isoxazole ring. Isoxazole is five-membered ring with three carbon atoms, and an oxygen atom next to a nitrogen atom.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzisoxazoles
Sub ClassNot Available
Direct ParentBenzisoxazoles
Alternative Parents
Substituents
  • Benzisoxazole
  • Benzenoid
  • Heteroaromatic compound
  • Aminosulfonyl compound
  • Sulfonyl
  • Sulfonic acid derivative
  • Sulfonamide
  • Oxazole
  • Isoxazole
  • Azole
  • Oxacycle
  • Azacycle
  • Hydrocarbon derivative
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Pharmacology
IndicationFor use as adjunctive treatment of partial seizures in adults with epilepsy.
PharmacodynamicsZonisamide is an antiseizure drug chemically classified as a sulfonamide and unrelated to other antiseizure agents. The precise mechanism by which zonisamide exerts its antiseizure effect is unknown, although it is believed that the drug blocks sodium and calcium channels, which leads to the suppression of neuronal hypersynchronization (i.e. convulsions). Sonisamide has also been found to potentiate dopaminergic and serotonergic neurotransmission but does not appear to potentiate syanptic activity by GABA (gamma amino butyric acid).
Mechanism of actionZonisamide binds to sodium channels and voltage sensitive calcium channels, which suppresses neuronal depolarization and hypersynchronization. Zonisamide also inhibits carbonic anhydrase to a weaker extent, but such an effect is not thought to contribute substantially to the drug's anticonvulsant activity.
Related Articles
AbsorptionVariable, yet relatively rapid rate of absorption with a time to peak concentration of 2.8-3.9 hours. Food has no effect on the bioavailability of zonisamide.
Volume of distribution
  • 1.45 L/kg
Protein binding40% (at concentrations of 1.0-7.0 µg/mL)
Metabolism

Primarily hepatic through cytochrome P450 isoenzyme 3A4 (CYP3A4). Undergoes acetylation and reduction, forming N-acetyl zonisamide, and the open-ring metabolite 2–sulfamoylacetyl phenol, respectively.

SubstrateEnzymesProduct
Zonisamide
2-sulfamoylacetylphenolDetails
Zonisamide
Not Available
N-acetyl zonisamideDetails
Route of eliminationZonisamide is excreted primarily in urine as parent drug and as the glucuronide of a metabolite.
Half life63 hours
Clearance
  • 0.30 – 0.35 mL/min/kg [patients not receiving enzyme-inducing antiepilepsy drugs (AEDs)]
  • 0.35 – 0.5 mL/min/kg [Concomitant administration of phenytoin and carbamazepine]
ToxicitySymptoms of overdose include diminished breathing, loss of consciousness, low blood pressure, and slow heartbeat.
Affected organisms
  • Humans and other mammals
PathwaysNot Available
SNP Mediated EffectsNot Available
SNP Mediated Adverse Drug ReactionsNot Available
ADMET
Predicted ADMET features
PropertyValueProbability
Human Intestinal Absorption+1.0
Blood Brain Barrier+0.9755
Caco-2 permeable-0.6385
P-glycoprotein substrateNon-substrate0.8681
P-glycoprotein inhibitor INon-inhibitor0.9258
P-glycoprotein inhibitor IINon-inhibitor0.9513
Renal organic cation transporterNon-inhibitor0.8463
CYP450 2C9 substrateNon-substrate0.8828
CYP450 2D6 substrateNon-substrate0.9116
CYP450 3A4 substrateNon-substrate0.5419
CYP450 1A2 substrateNon-inhibitor0.5762
CYP450 2C9 inhibitorNon-inhibitor0.697
CYP450 2D6 inhibitorNon-inhibitor0.8081
CYP450 2C19 inhibitorNon-inhibitor0.6007
CYP450 3A4 inhibitorNon-inhibitor0.8141
CYP450 inhibitory promiscuityLow CYP Inhibitory Promiscuity0.7315
Ames testNon AMES toxic0.6276
CarcinogenicityNon-carcinogens0.7572
BiodegradationNot ready biodegradable0.9708
Rat acute toxicity2.0592 LD50, mol/kg Not applicable
hERG inhibition (predictor I)Weak inhibitor0.8549
hERG inhibition (predictor II)Non-inhibitor0.8937
ADMET data is predicted using admetSAR, a free tool for evaluating chemical ADMET properties. (23092397 )
Pharmacoeconomics
Manufacturers
  • Eisai inc
  • Alphapharm party ltd
  • Apotex inc etobicoke site
  • Banner pharmacaps inc
  • Barr laboratories inc
  • Corepharma llc
  • Dr reddys laboratories ltd
  • Glenmark generics inc usa
  • Invagen pharmaceuticals inc
  • Mutual pharmaceutical co inc
  • Mylan pharmaceuticals inc
  • Roxane laboratories inc
  • Sandoz inc
  • Sun pharmaceutical industries ltd
  • Teva pharmaceuticals usa
  • Watson laboratories inc
  • Wockhardt ltd
  • Zydus pharmaceuticals usa inc
Packagers
Dosage forms
FormRouteStrength
Capsuleoral100 mg/1
Capsuleoral25 mg/1
Capsuleoral50 mg/1
Prices
Unit descriptionCostUnit
Zonegran 100 mg capsule3.33USD capsule
Zonisamide 100 mg capsule2.24USD capsule
Zonegran 50 mg capsule1.22USD capsule
Zonisamide 50 mg capsule1.12USD capsule
Zonegran 25 mg capsule0.94USD capsule
Zonisamide 25 mg capsule0.56USD capsule
DrugBank does not sell nor buy drugs. Pricing information is supplied for informational purposes only.
PatentsNot Available
Properties
StateSolid
Experimental Properties
PropertyValueSource
melting point161-163 °CNot Available
water solubility0.8 mg/mLNot Available
logP0.5Not Available
pKa10.2Not Available
Predicted Properties
PropertyValueSource
Water Solubility2.09 mg/mLALOGPS
logP0.67ALOGPS
logP0.11ChemAxon
logS-2ALOGPS
pKa (Strongest Acidic)9.84ChemAxon
pKa (Strongest Basic)-1.8ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area86.19 Å2ChemAxon
Rotatable Bond Count2ChemAxon
Refractivity50.3 m3·mol-1ChemAxon
Polarizability19.48 Å3ChemAxon
Number of Rings2ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Mass Spec (NIST)Not Available
Spectra
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, PositiveNot Available
References
Synthesis Reference

Tamar Nidam, “Novel sulfonation method for zonisamide intermediate in zonisamide synthesis and their novel crystal forms.” U.S. Patent US20030114682, issued June 19, 2003.

US20030114682
General References
  1. Murata M, Horiuchi E, Kanazawa I: Zonisamide has beneficial effects on Parkinson's disease patients. Neurosci Res. 2001 Dec;41(4):397-9. [PubMed:11755227 ]
  2. Gadde KM, Franciscy DM, Wagner HR 2nd, Krishnan KR: Zonisamide for weight loss in obese adults: a randomized controlled trial. JAMA. 2003 Apr 9;289(14):1820-5. [PubMed:12684361 ]
  3. Hasegawa H: Utilization of zonisamide in patients with chronic pain or epilepsy refractory to other treatments: a retrospective, open label, uncontrolled study in a VA hospital. Curr Med Res Opin. 2004 May;20(5):577-80. [PubMed:15140322 ]
  4. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  5. Ueda Y, Doi T, Tokumaru J, Willmore LJ: Effect of zonisamide on molecular regulation of glutamate and GABA transporter proteins during epileptogenesis in rats with hippocampal seizures. Brain Res Mol Brain Res. 2003 Aug 19;116(1-2):1-6. [PubMed:12941455 ]
  6. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  7. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  8. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  9. Peters DH, Sorkin EM: Zonisamide. A review of its pharmacodynamic and pharmacokinetic properties, and therapeutic potential in epilepsy. Drugs. 1993 May;45(5):760-87. [PubMed:7686468 ]
  10. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
External Links
ATC CodesN03AX15
AHFS CodesNot Available
PDB EntriesNot Available
FDA labelDownload (124 KB)
MSDSDownload (58.3 KB)
Interactions
Drug Interactions
Drug
AcetazolamideThe risk or severity of adverse effects can be increased when Acetazolamide is combined with Zonisamide.
Acetylsalicylic acidThe risk or severity of adverse effects can be increased when Acetylsalicylic acid is combined with Zonisamide.
AmphetamineZonisamide may decrease the excretion rate of Amphetamine which could result in a lower serum level and potentially a reduction in efficacy.
AprepitantThe serum concentration of Zonisamide can be increased when it is combined with Aprepitant.
AzelastineZonisamide may increase the central nervous system depressant (CNS depressant) activities of Azelastine.
BaclofenThe risk or severity of adverse effects can be increased when Baclofen is combined with Zonisamide.
BexaroteneThe serum concentration of Zonisamide can be decreased when it is combined with Bexarotene.
BosentanThe serum concentration of Zonisamide can be decreased when it is combined with Bosentan.
BrimonidineBrimonidine may increase the central nervous system depressant (CNS depressant) activities of Zonisamide.
BuprenorphineZonisamide may increase the central nervous system depressant (CNS depressant) activities of Buprenorphine.
CathinoneZonisamide may decrease the excretion rate of Cathinone which could result in a lower serum level and potentially a reduction in efficacy.
ConivaptanThe serum concentration of Zonisamide can be increased when it is combined with Conivaptan.
DabrafenibThe serum concentration of Zonisamide can be decreased when it is combined with Dabrafenib.
DasatinibThe serum concentration of Zonisamide can be increased when it is combined with Dasatinib.
DeferasiroxThe serum concentration of Zonisamide can be decreased when it is combined with Deferasirox.
DiclofenamideThe risk or severity of adverse effects can be increased when Diclofenamide is combined with Zonisamide.
DoxylamineDoxylamine may increase the central nervous system depressant (CNS depressant) activities of Zonisamide.
DronabinolDronabinol may increase the central nervous system depressant (CNS depressant) activities of Zonisamide.
DroperidolDroperidol may increase the central nervous system depressant (CNS depressant) activities of Zonisamide.
EthanolZonisamide may increase the central nervous system depressant (CNS depressant) activities of Ethanol.
EthoxzolamideThe risk or severity of adverse effects can be increased when Ethoxzolamide is combined with Zonisamide.
FlecainideThe serum concentration of Flecainide can be increased when it is combined with Zonisamide.
FluconazoleThe metabolism of Zonisamide can be decreased when combined with Fluconazole.
FosaprepitantThe serum concentration of Zonisamide can be increased when it is combined with Fosaprepitant.
FosphenytoinThe serum concentration of Zonisamide can be decreased when it is combined with Fosphenytoin.
Fusidic AcidThe serum concentration of Zonisamide can be increased when it is combined with Fusidic Acid.
HexamethylenetetramineThe therapeutic efficacy of Hexamethylenetetramine can be decreased when used in combination with Zonisamide.
HydrocodoneZonisamide may increase the central nervous system depressant (CNS depressant) activities of Hydrocodone.
HydroxyzineHydroxyzine may increase the central nervous system depressant (CNS depressant) activities of Zonisamide.
IdelalisibThe serum concentration of Zonisamide can be increased when it is combined with Idelalisib.
IvacaftorThe serum concentration of Zonisamide can be increased when it is combined with Ivacaftor.
LithiumThe serum concentration of Lithium can be decreased when it is combined with Zonisamide.
LorazepamThe risk or severity of adverse effects can be increased when Lorazepam is combined with Zonisamide.
LuliconazoleThe serum concentration of Zonisamide can be increased when it is combined with Luliconazole.
Magnesium SulfateMagnesium Sulfate may increase the central nervous system depressant (CNS depressant) activities of Zonisamide.
MefloquineThe therapeutic efficacy of Zonisamide can be decreased when used in combination with Mefloquine.
MemantineZonisamide may decrease the excretion rate of Memantine which could result in a lower serum level and potentially a reduction in efficacy.
MetforminThe risk or severity of adverse effects can be increased when Zonisamide is combined with Metformin.
MethotrimeprazineZonisamide may increase the central nervous system depressant (CNS depressant) activities of Methotrimeprazine.
MetyrosineZonisamide may increase the sedative activities of Metyrosine.
MianserinThe therapeutic efficacy of Zonisamide can be decreased when used in combination with Mianserin.
MifepristoneThe serum concentration of Zonisamide can be increased when it is combined with Mifepristone.
MinocyclineMinocycline may increase the central nervous system depressant (CNS depressant) activities of Zonisamide.
MirtazapineZonisamide may increase the central nervous system depressant (CNS depressant) activities of Mirtazapine.
MitotaneThe serum concentration of Zonisamide can be decreased when it is combined with Mitotane.
NabiloneNabilone may increase the central nervous system depressant (CNS depressant) activities of Zonisamide.
NelfinavirThe metabolism of Zonisamide can be decreased when combined with Nelfinavir.
NetupitantThe serum concentration of Zonisamide can be increased when it is combined with Netupitant.
OrlistatThe serum concentration of Zonisamide can be decreased when it is combined with Orlistat.
OrphenadrineZonisamide may increase the central nervous system depressant (CNS depressant) activities of Orphenadrine.
PalbociclibThe serum concentration of Zonisamide can be increased when it is combined with Palbociclib.
ParaldehydeZonisamide may increase the central nervous system depressant (CNS depressant) activities of Paraldehyde.
ParoxetineThe risk or severity of adverse effects can be increased when Zonisamide is combined with Paroxetine.
PerampanelPerampanel may increase the central nervous system depressant (CNS depressant) activities of Zonisamide.
PhenobarbitalThe serum concentration of Zonisamide can be decreased when it is combined with Phenobarbital.
PhenytoinThe serum concentration of Zonisamide can be decreased when it is combined with Phenytoin.
PramipexoleZonisamide may increase the sedative activities of Pramipexole.
QuinidineZonisamide may decrease the excretion rate of Quinidine which could result in a lower serum level and potentially a reduction in efficacy.
RopiniroleZonisamide may increase the sedative activities of Ropinirole.
RotigotineZonisamide may increase the sedative activities of Rotigotine.
RufinamideThe risk or severity of adverse effects can be increased when Rufinamide is combined with Zonisamide.
SiltuximabThe serum concentration of Zonisamide can be decreased when it is combined with Siltuximab.
SimeprevirThe serum concentration of Zonisamide can be increased when it is combined with Simeprevir.
Sodium oxybateSodium oxybate may increase the central nervous system depressant (CNS depressant) activities of Zonisamide.
St. John's WortThe serum concentration of Zonisamide can be decreased when it is combined with St. John's Wort.
StiripentolThe serum concentration of Zonisamide can be increased when it is combined with Stiripentol.
SuvorexantZonisamide may increase the central nervous system depressant (CNS depressant) activities of Suvorexant.
TapentadolTapentadol may increase the central nervous system depressant (CNS depressant) activities of Zonisamide.
ThalidomideZonisamide may increase the central nervous system depressant (CNS depressant) activities of Thalidomide.
TocilizumabThe serum concentration of Zonisamide can be decreased when it is combined with Tocilizumab.
ZolpidemZonisamide may increase the central nervous system depressant (CNS depressant) activities of Zolpidem.
Food InteractionsNot Available

Targets

Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated sodium channel activity
Specific Function:
Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient.
Gene Name:
SCN1A
Uniprot ID:
P35498
Molecular Weight:
228969.49 Da
References
  1. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  2. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  3. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  4. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
  8. 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
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated sodium channel activity
Specific Function:
Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient.
Gene Name:
SCN2A
Uniprot ID:
Q99250
Molecular Weight:
227972.64 Da
References
  1. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  4. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated sodium channel activity
Specific Function:
Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient.
Gene Name:
SCN3A
Uniprot ID:
Q9NY46
Molecular Weight:
226291.905 Da
References
  1. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  4. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated sodium channel activity
Specific Function:
This protein mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient. This sodium channel may be present in both denervated and innervated skeleta...
Gene Name:
SCN4A
Uniprot ID:
P35499
Molecular Weight:
208059.175 Da
References
  1. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  4. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated sodium channel activity involved in sa node cell action potential
Specific Function:
This protein mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient. It is a tetrodotoxin-resistant Na(+) channel isoform. This channel is respon...
Gene Name:
SCN5A
Uniprot ID:
Q14524
Molecular Weight:
226937.475 Da
References
  1. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  4. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated sodium channel activity
Specific Function:
Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient. It is a tetrodotoxin-sensitive Na(+) channel isoform. Plays a role in pain mechanisms, es...
Gene Name:
SCN9A
Uniprot ID:
Q15858
Molecular Weight:
226370.175 Da
References
  1. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  4. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated sodium channel activity
Specific Function:
This protein mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which sodium ions may pass in accordance with their electrochemical gradient. It is a tetrodotoxin-resistant sodium channel isoform. Also involved, with ...
Gene Name:
SCN11A
Uniprot ID:
Q9UI33
Molecular Weight:
204919.66 Da
References
  1. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  4. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated sodium channel activity involved in purkinje myocyte action potential
Specific Function:
Crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the sodium channel. The subunit beta-1 can modulate multiple alpha subunit isoforms from brain, skeletal muscle, and heart. Its association with neurofascin may target the sodium channels to the nodes of Ranvier of developing axons and retain these channels at the nodes in mature myelinated axons.Iso...
Gene Name:
SCN1B
Uniprot ID:
Q07699
Molecular Weight:
24706.955 Da
References
  1. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  4. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated sodium channel activity involved in cardiac muscle cell action potential
Specific Function:
Crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the sodium channel. The subunit beta-2 causes an increase in the plasma membrane surface area and in its folding into microvilli. Interacts with TNR may play a crucial role in clustering and regulation of activity of sodium channels at nodes of Ranvier (By similarity).
Gene Name:
SCN2B
Uniprot ID:
O60939
Molecular Weight:
24325.69 Da
References
  1. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  4. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated sodium channel activity involved in cardiac muscle cell action potential
Specific Function:
Modulates channel gating kinetics. Causes unique persistent sodium currents. Inactivates the sodium channel opening more slowly than the subunit beta-1. Its association with neurofascin may target the sodium channels to the nodes of Ranvier of developing axons and retain these channels at the nodes in mature myelinated axons (By similarity).
Gene Name:
SCN3B
Uniprot ID:
Q9NY72
Molecular Weight:
24702.08 Da
References
  1. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  4. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated sodium channel activity involved in cardiac muscle cell action potential
Specific Function:
Modulates channel gating kinetics. Causes negative shifts in the voltage dependence of activation of certain alpha sodium channels, but does not affect the voltage dependence of inactivation. Modulates the suceptibility of the sodium channel to inhibition by toxic peptides from spider, scorpion, wasp and sea anemone venom.
Gene Name:
SCN4B
Uniprot ID:
Q8IWT1
Molecular Weight:
24968.755 Da
References
  1. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  4. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Scaffold protein binding
Specific Function:
Voltage-sensitive calcium channels (VSCC) mediate the entry of calcium ions into excitable cells and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. The isoform alpha-1G gives rise to T-type calcium currents. T-type calcium channels belong to the "low-v...
Gene Name:
CACNA1G
Uniprot ID:
O43497
Molecular Weight:
262468.62 Da
References
  1. 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 ]
  2. 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 ]
  3. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  4. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  5. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  6. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  7. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  8. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  9. Murata M: Novel therapeutic effects of the anti-convulsant, zonisamide, on Parkinson's disease. Curr Pharm Des. 2004;10(6):687-93. [PubMed:14965331 ]
  10. Murata M: Zonisamide: a new drug for Parkinson's disease. Drugs Today (Barc). 2010 Apr;46(4):251-8. doi: 10.1358/dot.2010.46.4.1490077. [PubMed:20502722 ]
  11. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
  12. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Scaffold protein binding
Specific Function:
Voltage-sensitive calcium channels (VSCC) mediate the entry of calcium ions into excitable cells and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. The isoform alpha-1H gives rise to T-type calcium currents. T-type calcium channels belong to the "low-v...
Gene Name:
CACNA1H
Uniprot ID:
O95180
Molecular Weight:
259160.2 Da
References
  1. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  4. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Murata M: Novel therapeutic effects of the anti-convulsant, zonisamide, on Parkinson's disease. Curr Pharm Des. 2004;10(6):687-93. [PubMed:14965331 ]
  8. Murata M: Zonisamide: a new drug for Parkinson's disease. Drugs Today (Barc). 2010 Apr;46(4):251-8. doi: 10.1358/dot.2010.46.4.1490077. [PubMed:20502722 ]
  9. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
  10. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
Kind
Protein
Organism
Human
Pharmacological action
yes
Actions
inhibitor
General Function:
Voltage-gated calcium channel activity
Specific Function:
Voltage-sensitive calcium channels (VSCC) mediate the entry of calcium ions into excitable cells and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. Isoform alpha-1I gives rise to T-type calcium currents. T-type calcium channels belong to the "low-volta...
Gene Name:
CACNA1I
Uniprot ID:
Q9P0X4
Molecular Weight:
245100.8 Da
References
  1. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  2. Kothare SV, Kaleyias J: Zonisamide: review of pharmacology, clinical efficacy, tolerability, and safety. Expert Opin Drug Metab Toxicol. 2008 Apr;4(4):493-506. doi: 10.1517/17425255.4.4.493 . [PubMed:18433351 ]
  3. Sobieszek G, Borowicz KK, Kimber-Trojnar Z, Malek R, Piskorska B, Czuczwar SJ: Zonisamide: a new antiepileptic drug. Pol J Pharmacol. 2003 Sep-Oct;55(5):683-9. [PubMed:14704463 ]
  4. Janszky J: [Role of zonisamid in treating epilepsy, Parkinson disorders and other neurological diseases]. Ideggyogy Sz. 2009 Nov 30;62(11-12):383-9. [PubMed:20025128 ]
  5. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  6. Leppik IE: Zonisamide: chemistry, mechanism of action, and pharmacokinetics. Seizure. 2004 Dec;13 Suppl 1:S5-9; discussion S10. [PubMed:15511691 ]
  7. Murata M: Novel therapeutic effects of the anti-convulsant, zonisamide, on Parkinson's disease. Curr Pharm Des. 2004;10(6):687-93. [PubMed:14965331 ]
  8. Murata M: Zonisamide: a new drug for Parkinson's disease. Drugs Today (Barc). 2010 Apr;46(4):251-8. doi: 10.1358/dot.2010.46.4.1490077. [PubMed:20502722 ]
  9. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
  10. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Reversible hydration of carbon dioxide. Can hydrates cyanamide to urea.
Gene Name:
CA1
Uniprot ID:
P00915
Molecular Weight:
28870.0 Da
References
  1. De Simone G, Di Fiore A, Menchise V, Pedone C, Antel J, Casini A, Scozzafava A, Wurl M, Supuran CT: Carbonic anhydrase inhibitors. Zonisamide is an effective inhibitor of the cytosolic isozyme II and mitochondrial isozyme V: solution and X-ray crystallographic studies. Bioorg Med Chem Lett. 2005 May 2;15(9):2315-20. [PubMed:15837316 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Shank RP, Smith-Swintosky VL, Maryanoff BE: Carbonic anhydrase inhibition. Insight into the characteristics of zonisamide, topiramate, and the sulfamide cognate of topiramate. J Enzyme Inhib Med Chem. 2008 Apr;23(2):271-6. doi: 10.1080/14756360701507001 . [PubMed:18343915 ]
  4. Masuda Y, Karasawa T: Inhibitory effect of zonisamide on human carbonic anhydrase in vitro. Arzneimittelforschung. 1993 Apr;43(4):416-8. [PubMed:8494570 ]
  5. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  6. Temperini C, Cecchi A, Boyle NA, Scozzafava A, Cabeza JE, Wentworth P Jr, Blackburn GM, Supuran CT: Carbonic anhydrase inhibitors. Interaction of 2-N,N-dimethylamino-1,3,4-thiadiazole-5-methanesulfonamide with 12 mammalian isoforms: kinetic and X-ray crystallographic studies. Bioorg Med Chem Lett. 2008 Feb 1;18(3):999-1005. Epub 2007 Dec 15. [PubMed:18162396 ]
  7. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  8. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Essential for bone resorption and osteoclast differentiation (By similarity). Reversible hydration of carbon dioxide. Can hydrate cyanamide to urea. Involved in the regulation of fluid secretion into the anterior chamber of the eye. Contributes to intracellular pH regulation in the duodenal upper villous epithelium during proton-coupled peptide absorption. Stimulates the chloride-bicarbonate ex...
Gene Name:
CA2
Uniprot ID:
P00918
Molecular Weight:
29245.895 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Shank RP, Smith-Swintosky VL, Maryanoff BE: Carbonic anhydrase inhibition. Insight into the characteristics of zonisamide, topiramate, and the sulfamide cognate of topiramate. J Enzyme Inhib Med Chem. 2008 Apr;23(2):271-6. doi: 10.1080/14756360701507001 . [PubMed:18343915 ]
  4. De Simone G, Di Fiore A, Menchise V, Pedone C, Antel J, Casini A, Scozzafava A, Wurl M, Supuran CT: Carbonic anhydrase inhibitors. Zonisamide is an effective inhibitor of the cytosolic isozyme II and mitochondrial isozyme V: solution and X-ray crystallographic studies. Bioorg Med Chem Lett. 2005 May 2;15(9):2315-20. [PubMed:15837316 ]
  5. Masuda Y, Karasawa T: Inhibitory effect of zonisamide on human carbonic anhydrase in vitro. Arzneimittelforschung. 1993 Apr;43(4):416-8. [PubMed:8494570 ]
  6. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  7. Temperini C, Cecchi A, Boyle NA, Scozzafava A, Cabeza JE, Wentworth P Jr, Blackburn GM, Supuran CT: Carbonic anhydrase inhibitors. Interaction of 2-N,N-dimethylamino-1,3,4-thiadiazole-5-methanesulfonamide with 12 mammalian isoforms: kinetic and X-ray crystallographic studies. Bioorg Med Chem Lett. 2008 Feb 1;18(3):999-1005. Epub 2007 Dec 15. [PubMed:18162396 ]
  8. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  9. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Reversible hydration of carbon dioxide.
Gene Name:
CA3
Uniprot ID:
P07451
Molecular Weight:
29557.215 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  4. Temperini C, Cecchi A, Boyle NA, Scozzafava A, Cabeza JE, Wentworth P Jr, Blackburn GM, Supuran CT: Carbonic anhydrase inhibitors. Interaction of 2-N,N-dimethylamino-1,3,4-thiadiazole-5-methanesulfonamide with 12 mammalian isoforms: kinetic and X-ray crystallographic studies. Bioorg Med Chem Lett. 2008 Feb 1;18(3):999-1005. Epub 2007 Dec 15. [PubMed:18162396 ]
  5. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  6. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Reversible hydration of carbon dioxide. May stimulate the sodium/bicarbonate transporter activity of SLC4A4 that acts in pH homeostasis. It is essential for acid overload removal from the retina and retina epithelium, and acid release in the choriocapillaris in the choroid.
Gene Name:
CA4
Uniprot ID:
P22748
Molecular Weight:
35032.075 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  4. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  5. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Reversible hydration of carbon dioxide. Low activity.
Gene Name:
CA5A
Uniprot ID:
P35218
Molecular Weight:
34750.21 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. De Simone G, Di Fiore A, Menchise V, Pedone C, Antel J, Casini A, Scozzafava A, Wurl M, Supuran CT: Carbonic anhydrase inhibitors. Zonisamide is an effective inhibitor of the cytosolic isozyme II and mitochondrial isozyme V: solution and X-ray crystallographic studies. Bioorg Med Chem Lett. 2005 May 2;15(9):2315-20. [PubMed:15837316 ]
  4. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  5. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  6. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Reversible hydration of carbon dioxide.
Gene Name:
CA5B
Uniprot ID:
Q9Y2D0
Molecular Weight:
36433.43 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. De Simone G, Di Fiore A, Menchise V, Pedone C, Antel J, Casini A, Scozzafava A, Wurl M, Supuran CT: Carbonic anhydrase inhibitors. Zonisamide is an effective inhibitor of the cytosolic isozyme II and mitochondrial isozyme V: solution and X-ray crystallographic studies. Bioorg Med Chem Lett. 2005 May 2;15(9):2315-20. [PubMed:15837316 ]
  4. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  5. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  6. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Reversible hydration of carbon dioxide. Its role in saliva is unknown.
Gene Name:
CA6
Uniprot ID:
P23280
Molecular Weight:
35366.615 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  4. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  5. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Reversible hydration of carbon dioxide.
Gene Name:
CA7
Uniprot ID:
P43166
Molecular Weight:
29658.235 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  4. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  5. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Does not have a carbonic anhydrase catalytic activity.
Gene Name:
CA8
Uniprot ID:
P35219
Molecular Weight:
32972.915 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  4. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  5. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Reversible hydration of carbon dioxide. Participates in pH regulation. May be involved in the control of cell proliferation and transformation. Appears to be a novel specific biomarker for a cervical neoplasia.
Gene Name:
CA9
Uniprot ID:
Q16790
Molecular Weight:
49697.36 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  4. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  5. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Not Available
Specific Function:
Does not have a catalytic activity.
Gene Name:
CA10
Uniprot ID:
Q9NS85
Molecular Weight:
37562.655 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  4. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  5. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Not Available
Specific Function:
Does not have a catalytic activity.
Gene Name:
CA11
Uniprot ID:
O75493
Molecular Weight:
36237.885 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  4. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  5. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Reversible hydration of carbon dioxide.
Gene Name:
CA12
Uniprot ID:
O43570
Molecular Weight:
39450.615 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  4. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  5. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Zinc ion binding
Specific Function:
Reversible hydration of carbon dioxide.
Gene Name:
CA13
Uniprot ID:
Q8N1Q1
Molecular Weight:
29442.895 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  4. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  5. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Metal ion binding
Specific Function:
Reversible hydration of carbon dioxide.
Gene Name:
CA14
Uniprot ID:
Q9ULX7
Molecular Weight:
37667.37 Da
References
  1. De Simone G, Scozzafava A, Supuran CT: Which carbonic anhydrases are targeted by the antiepileptic sulfonamides and sulfamates? Chem Biol Drug Des. 2009 Sep;74(3):317-21. doi: 10.1111/j.1747-0285.2009.00857.x. [PubMed:19703035 ]
  2. Supuran CT, Di Fiore A, De Simone G: Carbonic anhydrase inhibitors as emerging drugs for the treatment of obesity. Expert Opin Emerg Drugs. 2008 Jun;13(2):383-92. doi: 10.1517/14728214.13.2.383 . [PubMed:18537527 ]
  3. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
  4. Biton V: Clinical pharmacology and mechanism of action of zonisamide. Clin Neuropharmacol. 2007 Jul-Aug;30(4):230-40. [PubMed:17762320 ]
  5. Authors unspecified: Zonisamide: new drug. No advantage in refractory partial epilepsy. Prescrire Int. 2007 Jun;16(89):95-7. [PubMed:17582922 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Primary amine oxidase activity
Specific Function:
Catalyzes the oxidative deamination of biogenic and xenobiotic amines and has important functions in the metabolism of neuroactive and vasoactive amines in the central nervous system and peripheral tissues. MAOB preferentially degrades benzylamine and phenylethylamine.
Gene Name:
MAOB
Uniprot ID:
P27338
Molecular Weight:
58762.475 Da
References
  1. Sonsalla PK, Wong LY, Winnik B, Buckley B: The antiepileptic drug zonisamide inhibits MAO-B and attenuates MPTP toxicity in mice: clinical relevance. Exp Neurol. 2010 Feb;221(2):329-34. doi: 10.1016/j.expneurol.2009.11.018. Epub 2009 Dec 4. [PubMed:19948168 ]
  2. Murata M: Novel therapeutic effects of the anti-convulsant, zonisamide, on Parkinson's disease. Curr Pharm Des. 2004;10(6):687-93. [PubMed:14965331 ]
  3. Murata M, Horiuchi E, Kanazawa I: Zonisamide has beneficial effects on Parkinson's disease patients. Neurosci Res. 2001 Dec;41(4):397-9. [PubMed:11755227 ]
  4. Okada M, Kaneko S, Hirano T, Mizuno K, Kondo T, Otani K, Fukushima Y: Effects of zonisamide on dopaminergic system. Epilepsy Res. 1995 Nov;22(3):193-205. [PubMed:8991786 ]
  5. Murata M: Zonisamide: a new drug for Parkinson's disease. Drugs Today (Barc). 2010 Apr;46(4):251-8. doi: 10.1358/dot.2010.46.4.1490077. [PubMed:20502722 ]
  6. Okada M: [Effects of carbamazepine and zonisamide on dopaminergic system in rat striatum and hippocampus]. Nihon Shinkei Seishin Yakurigaku Zasshi. 1994 Oct;14(5):337-54. [PubMed:7856330 ]
  7. Farooq MU, Moore PW, Bhatt A, Aburashed R, Kassab MY: Therapeutic role of zonisamide in neuropsychiatric disorders. Mini Rev Med Chem. 2008 Sep;8(10):968-75. [PubMed:18782051 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Serotonin binding
Specific Function:
Catalyzes the oxidative deamination of biogenic and xenobiotic amines and has important functions in the metabolism of neuroactive and vasoactive amines in the central nervous system and peripheral tissues. MAOA preferentially oxidizes biogenic amines such as 5-hydroxytryptamine (5-HT), norepinephrine and epinephrine.
Gene Name:
MAOA
Uniprot ID:
P21397
Molecular Weight:
59681.27 Da
References
  1. Okada M, Kaneko S, Hirano T, Mizuno K, Kondo T, Otani K, Fukushima Y: Effects of zonisamide on dopaminergic system. Epilepsy Res. 1995 Nov;22(3):193-205. [PubMed:8991786 ]
  2. Murata M: Zonisamide: a new drug for Parkinson's disease. Drugs Today (Barc). 2010 Apr;46(4):251-8. doi: 10.1358/dot.2010.46.4.1490077. [PubMed:20502722 ]

Enzymes

Kind
Protein
Organism
Human
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 reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiot...
Gene Name:
CYP3A4
Uniprot ID:
P08684
Molecular Weight:
57342.67 Da
References
  1. Nakasa H, Komiya M, Ohmori S, Rikihisa T, Kiuchi M, Kitada M: Characterization of human liver microsomal cytochrome P450 involved in the reductive metabolism of zonisamide. Mol Pharmacol. 1993 Jul;44(1):216-21. [PubMed:8341274 ]
  2. Schulze-Bonhage A: Zonisamide in the treatment of epilepsy. Expert Opin Pharmacother. 2010 Jan;11(1):115-26. doi: 10.1517/14656560903468728. [PubMed:20001433 ]
  3. Zaccara G, Specchio LM: Long-term safety and effectiveness of zonisamide in the treatment of epilepsy: a review of the literature. Neuropsychiatr Dis Treat. 2009;5:249-59. Epub 2009 May 20. [PubMed:19557119 ]
  4. Nakasa H, Nakamura H, Ono S, Tsutsui M, Kiuchi M, Ohmori S, Kitada M: Prediction of drug-drug interactions of zonisamide metabolism in humans from in vitro data. Eur J Clin Pharmacol. 1998 Apr;54(2):177-83. [PubMed:9626925 ]
  5. 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 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
substrate
General Function:
Xanthine dehydrogenase activity
Specific Function:
Oxidase with broad substrate specificity, oxidizing aromatic azaheterocycles, such as N1-methylnicotinamide and N-methylphthalazinium, as well as aldehydes, such as benzaldehyde, retinal, pyridoxal, and vanillin. Plays a key role in the metabolism of xenobiotics and drugs containing aromatic azaheterocyclic substituents. Participates in the bioactivation of prodrugs such as famciclovir, catalyz...
Gene Name:
AOX1
Uniprot ID:
Q06278
Molecular Weight:
147916.735 Da
References
  1. Sugihara K, Kitamura S, Tatsumi K: Involvement of mammalian liver cytosols and aldehyde oxidase in reductive metabolism of zonisamide. Drug Metab Dispos. 1996 Feb;24(2):199-202. [PubMed:8742231 ]
  2. Kitamura S, Ohashi KNK, Sugihara K, Hosokawa R, Akagawa Y, Ohta S: Extremely high drug-reductase activity based on aldehyde oxidase in monkey liver. Biol Pharm Bull. 2001 Jul;24(7):856-9. [PubMed:11456132 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Steroid hydroxylase activity
Specific Function:
Responsible for the metabolism of a number of therapeutic agents such as the anticonvulsant drug S-mephenytoin, omeprazole, proguanil, certain barbiturates, diazepam, propranolol, citalopram and imipramine.
Gene Name:
CYP2C19
Uniprot ID:
P33261
Molecular Weight:
55930.545 Da
References
  1. 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 ]
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Drug created on June 13, 2005 07:24 / Updated on September 16, 2013 17:12