Anti-convulsant medicine used to treat seizures in dogs
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CompTox Dashboard (EPA) | - DTXSID50172160
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ECHA InfoCard | 100.220.751 |
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Chemical and physical data |
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Formula | C13H14ClN3O2 |
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Molar mass | 279.72 g·mol−1 |
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3D model (JSmol) | |
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InChI=1S/C13H14ClN3O2/c14-10-1-3-11(4-2-10)17-9-12(15-13(17)18)16-5-7-19-8-6-16/h1-4H,5-9H2 Key:IQHYCZKIFIHTAI-UHFFFAOYSA-N |
Imepitoin (INNTooltip International Nonproprietary Name), sold under the brand name Pexion, is an anticonvulsant which is used in veterinary medicine in Europe to treat epilepsy in dogs.[1][2][3][4] It was recently[when?] approved in the United States.[2][3][4] The drug also has anxiolytic effects.[1][2] It was originally developed to treat epilepsy in humans, but clinical trials were terminated upon findings of unfavorable metabolic differences in smokers and non-smokers.[1][2]
Imepitoin acts as a low-affinity (4,350–5,140 nM; relative to Ki = 6.8 nM for diazepam and Ki = 1.7 nM for clonazepam) partial agonist of the benzodiazepine site of the GABAA receptor (up to 12–21% of the maximal potentiation of diazepam, a full agonist of this site).[1] It is the first partial agonist to be approved for the treatment of epilepsy.[1] The drug also dose-dependently blocks voltage-gated calcium channels.[3] It is not a benzodiazepine; instead, it is an imidazolone, and bears some structural similarities to hydantoin anticonvulsants like ethotoin and phenytoin.[1]
See also
References
- ^ a b c d e f Rundfeldt C, Löscher W (2014). "The pharmacology of imepitoin: the first partial benzodiazepine receptor agonist developed for the treatment of epilepsy". CNS Drugs. 28 (1): 29–43. doi:10.1007/s40263-013-0129-z. PMID 24357084. S2CID 31627280.
- ^ a b c d Sanders S (29 April 2015). "Antiseizure Medications". Seizures in Dogs and Cats. Wiley. pp. 209–. ISBN 978-1-118-68970-7.
- ^ a b c Thomas WB, Dewey CW (8 September 2015). "Seizures and Narcolepsy". In Dewey CW, da Costa RC (eds.). Practical Guide to Canine and Feline Neurology. Wiley. p. 259. ISBN 978-1-119-06204-2.
- ^ a b "Imepitoin". drugs.com. Archived from the original on 2019-06-17. Retrieved 2017-09-17.
GABAA receptor positive modulators |
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Alcohols | |
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Barbiturates | |
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Benzodiazepines | |
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Carbamates | |
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Flavonoids | |
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Imidazoles | |
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Kava constituents | - 10-Methoxyyangonin
- 11-Methoxyyangonin
- 11-Hydroxyyangonin
- Desmethoxyyangonin
- 11-Methoxy-12-hydroxydehydrokavain
- 7,8-Dihydroyangonin
- Kavain
- 5-Hydroxykavain
- 5,6-Dihydroyangonin
- 7,8-Dihydrokavain
- 5,6,7,8-Tetrahydroyangonin
- 5,6-Dehydromethysticin
- Methysticin
- 7,8-Dihydromethysticin
- Yangonin
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Monoureides | |
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Neuroactive steroids | |
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Nonbenzodiazepines | |
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Phenols | |
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Piperidinediones | |
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Pyrazolopyridines | |
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Quinazolinones | |
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Volatiles/gases | |
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Others/unsorted | - 3-Hydroxybutanal
- α-EMTBL
- AA-29504
- Alogabat
- Avermectins (e.g., ivermectin)
- Bromide compounds (e.g., lithium bromide, potassium bromide, sodium bromide)
- Carbamazepine
- Chloralose
- Chlormezanone
- Clomethiazole
- Darigabat
- DEABL
- Deuterated etifoxine
- Dihydroergolines (e.g., dihydroergocryptine, dihydroergosine, dihydroergotamine, ergoloid (dihydroergotoxine))
- DS2
- Efavirenz
- Etazepine
- Etifoxine
- Fenamates (e.g., flufenamic acid, mefenamic acid, niflumic acid, tolfenamic acid)
- Fluoxetine
- Flupirtine
- Hopantenic acid
- KRM-II-81
- Lanthanum
- Lavender oil
- Lignans (e.g., 4-O-methylhonokiol, honokiol, magnolol, obovatol)
- Loreclezole
- Menthyl isovalerate (validolum)
- Monastrol
- Niacin
- Niacinamide
- Org 25,435
- Phenytoin
- Propanidid
- Retigabine (ezogabine)
- Safranal
- Seproxetine
- Stiripentol
- Sulfonylalkanes (e.g., sulfonmethane (sulfonal), tetronal, trional)
- Terpenoids (e.g., borneol)
- Topiramate
- Valerian constituents (e.g., isovaleric acid, isovaleramide, valerenic acid, valerenol)
- Unsorted benzodiazepine site positive modulators: α-Pinene
- MRK-409 (MK-0343)
- TCS-1105
- TCS-1205
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See also: Receptor/signaling modulators • GABA receptor modulators • GABA metabolism/transport modulators |
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Calcium | VDCCsTooltip Voltage-dependent calcium channels | |
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Potassium | VGKCsTooltip Voltage-gated potassium channels | |
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IRKsTooltip Inwardly rectifying potassium channel | Blockers | |
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Activators | - GIRKTooltip G protein-coupled inwardly rectifying potassium channel-specific: ML-297 (VU0456810)
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KCaTooltip Calcium-activated potassium channel | |
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K2PsTooltip Tandem pore domain potassium channel | |
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Sodium | VGSCsTooltip Voltage-gated sodium channels | |
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ENaCTooltip Epithelial sodium channel | |
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ASICsTooltip Acid-sensing ion channel | |
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Chloride | CaCCsTooltip Calcium-activated chloride channel | |
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CFTRTooltip Cystic fibrosis transmembrane conductance regulator | |
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Unsorted | |
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Others | TRPsTooltip Transient receptor potential channels | |
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LGICsTooltip Ligand gated ion channels | |
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See also: Receptor/signaling modulators • Transient receptor potential channel modulators |
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