gabapentin enacarbil 🐶 Veterinary Use | Indications/Contra | FAERs-F | FAERs-M | Orange Bk | PK/Tox | Related Drugs | BioActivity |

Stem definitionDrug idCAS RN
gabamimetic agents 4177 478296-72-9

Description:

MoleculeDescription

Molfile Inchi Smiles

Synonyms:

  • gabapentin enacarbil
  • horizant
  • XP13512
Gabapentin enacarbil is a prodrug of gabapentin and, accordingly, its therapeutic effects in restless legs syndrome and postherpetic neuralgia are attributable to gabapentin. In animal models of analgesia, gabapentin prevents allodynia (pain-related behavior in response to a normally innocuous stimulus) and hyperalgesia (exaggerated response to painful stimuli).
  • Molecular weight: 329.39
  • Formula: C16H27NO6
  • CLOGP: 3.31
  • LIPINSKI: 0
  • HAC: 7
  • HDO: 2
  • TPSA: 101.93
  • ALOGS: -3.01
  • ROTB: 9

  • Status: ONP

  • Legend:
    OFP - off patent
    OFM - off market
    ONP - on patent

Drug dosage:

None

ADMET properties:

PropertyValueReference
S (Water solubility) 0.50 mg/mL Bocci G, Oprea TI, Benet LZ
BDDCS (Biopharmaceutical Drug Disposition Classification System) 2 Bocci G, Oprea TI, Benet LZ
BA (Bioavailability) 60 %

Predicted pharmacokinetic/toxicological properties (PK-AZ):

PropertyDescriptionValueUnitConfidenceSimilarity
kinase-safety-class ACVR2A,ACVR2B,AURKA,AXL,BRAF,BTK,CAMK2B,CAMK2D,CDK4,CDK5,CDK9,DDR1,DYRK1B,EGFR,EIF2AK3,EPHB4,ERBB2,GRK2,GSK3B,IKBKB,ITK,JAK2,JAK3,MAP2K6,MAP3K21,MAP3K7,MAPK7,MAPKAPK2,NTRK2,PDK1,PDK2,PDK4,PIK3CB,PIK3CG,PIM2,PLK1,PRKDC,SIK2,STK33,SYK,TEK,TGFBR1,ZAP70 43
kinase-selectivity-class ACVR2B,AXL,BRAF,CDK9,GRK2,MAP2K6 6
pfas-class PFAS structural alert (1 = True, 0 = False) 0

Approvals:

DateAgencyCompanyOrphan
April 6, 2011 FDA XENOPORT INC

FDA Adverse Event Reporting System (Female)

MedDRA adverse event termLikelihood ratioLikelihood ratio thresholdPatients taking drug having adverse eventPatients taking drug not having adverse eventPatients not taking drug having adverse eventPatients not taking drug not having adverse event
Toxicity to various agents 1009.78 34.02 320 1445 287526 90339156
Completed suicide 491.79 34.02 159 1606 144899 90481783
Cardio-respiratory arrest 179.41 34.02 61 1704 63079 90563603
Drug abuse 159.90 34.02 60 1705 82287 90544395
Accidental overdose 115.40 34.02 36 1729 28237 90598445
Myoclonus 48.37 34.02 17 1748 19151 90607531
Rib deformity 36.04 34.02 6 1759 274 90626408

FDA Adverse Event Reporting System (Male)

MedDRA adverse event termLikelihood ratioLikelihood ratio thresholdPatients taking drug having adverse eventPatients taking drug not having adverse eventPatients not taking drug having adverse eventPatients not taking drug not having adverse event
Toxicity to various agents 661.49 48.56 265 1407 228871 42390792
Completed suicide 292.18 48.56 117 1555 96348 42523315
Drug abuse 151.40 48.56 76 1596 104695 42514968
Cardio-respiratory arrest 100.76 48.56 48 1624 58588 42561075

FDA Adverse Event Reporting System (Geriatric)

MedDRA adverse event termLikelihood ratioLikelihood ratio thresholdPatients taking drug having adverse eventPatients taking drug not having adverse eventPatients not taking drug having adverse eventPatients not taking drug not having adverse event
Toxicity to various agents 1686.70 35.85 584 2518 479971 110106226
Completed suicide 761.28 35.85 275 2827 242106 110344091
Drug abuse 321.67 35.85 136 2966 177275 110408922
Cardio-respiratory arrest 278.99 35.85 109 2993 115727 110470470
Accidental overdose 176.51 35.85 63 3039 51771 110534426
Myoclonus 78.92 35.85 31 3071 32967 110553230
Intentional product misuse 49.53 35.85 36 3066 132868 110453329
Bacteroides infection 38.15 35.85 10 3092 2909 110583288

FDA Adverse Event Reporting System (Pediatric)

None

Pharmacologic Action:

SourceCodeDescription
FDA PE N0000008486 Decreased Central Nervous System Disorganized Electrical Activity
MeSH PA D000700 Analgesics
MeSH PA D000927 Anticonvulsants
MeSH PA D002492 Central Nervous System Depressants
MeSH PA D011619 Psychotropic Drugs
MeSH PA D014151 Anti-Anxiety Agents
MeSH PA D018377 Neurotransmitter Agents
MeSH PA D018689 Sensory System Agents
MeSH PA D018691 Excitatory Amino Acid Antagonists
MeSH PA D018692 Antimanic Agents
CHEBI has role CHEBI:35469 antidepressant
CHEBI has role CHEBI:35474 anxiolytic drug
CHEBI has role CHEBI:35476 antipsychotic agent
CHEBI has role CHEBI:35480 analgesic
CHEBI has role CHEBI:35610 antineoplastic agent
CHEBI has role CHEBI:35623 anticonvulsant
CHEBI has role CHEBI:35703 xenobiotic
CHEBI has role CHEBI:35705 immunosuppressive agent
CHEBI has role CHEBI:38215 calcium channel blocker
CHEBI has role CHEBI:62868 hepatoprotective agent
CHEBI has role CHEBI:63726 neuroprotective agent
CHEBI has role CHEBI:64946 anti-HIV agent
CHEBI has role CHEBI:73336 vulnerary
CHEBI has role CHEBI:75835 anti-anaemic agent
CHEBI has role CHEBI:78298 environmental contaminant
CHEBI has role CHEBI:50266 prodrug
CHEBI has role CHEBI:231911 renoprotective agent

Drug Use | Suggest Off label Use Form| |View source of the data|

DiseaseRelationSNOMED_IDDOID
Postherpetic neuralgia indication 2177002
Restless legs indication 32914008 DOID:0050425
Partial Epilepsy Treatment Adjunct off-label use
Suicidal thoughts contraindication 6471006
Depressive disorder contraindication 35489007
Kidney disease contraindication 90708001 DOID:557




🐶 Veterinary Drug Use

None

🐶 Veterinary products

None

Acid dissociation constants calculated using MoKa v3.0.0

Dissociation levelDissociation constantType (acidic/basic)
pKa1 4.33 acidic

Orange Book patent data (new drug applications)

Formulation strengthTrade nameApplicantApplication numberApproval dateTypeDose formRoutePatent numberPatent expiration datePatent use
300MG HORIZANT AZURITY N022399 Dec. 13, 2011 RX TABLET, EXTENDED RELEASE ORAL 8114909 April 11, 2026 TREATMENT OF MODERATE-TO-SEVERE PRIMARY RESTLESS LEG SYNDROME IN ADULTS
600MG HORIZANT AZURITY N022399 April 6, 2011 RX TABLET, EXTENDED RELEASE ORAL 8114909 April 11, 2026 TREATMENT OF MODERATE-TO-SEVERE PRIMARY RESTLESS LEG SYNDROME IN ADULTS
300MG HORIZANT AZURITY N022399 Dec. 13, 2011 RX TABLET, EXTENDED RELEASE ORAL 8795725 June 10, 2029 MANAGEMENT OF POSTHERPETIC NEURALGIA (PHN) IN ADULTS
300MG HORIZANT AZURITY N022399 Dec. 13, 2011 RX TABLET, EXTENDED RELEASE ORAL 8795725 June 10, 2029 TREATMENT OF MODERATE-TO-SEVERE PRIMARY RESTLESS LEG SYNDROME IN ADULTS
600MG HORIZANT AZURITY N022399 April 6, 2011 RX TABLET, EXTENDED RELEASE ORAL 8795725 June 10, 2029 MANAGEMENT OF POSTHERPETIC NEURALGIA (PHN) IN ADULTS
600MG HORIZANT AZURITY N022399 April 6, 2011 RX TABLET, EXTENDED RELEASE ORAL 8795725 June 10, 2029 TREATMENT OF MODERATE-TO-SEVERE PRIMARY RESTLESS LEG SYNDROME IN ADULTS

Orange Book exclusivity data (new drug applications)

None

Bioactivity Summary:

TargetClassPharosUniProtActionTypeActivity value
(-log[M])
Mechanism
action
Bioact sourceMoA source
Voltage-dependent calcium channel subunit alpha-2/delta-1 Ion channel MODULATOR SCIENTIFIC LITERATURE SCIENTIFIC LITERATURE
Voltage-dependent calcium channel subunit alpha-2/delta-2 Ion channel MODULATOR SCIENTIFIC LITERATURE SCIENTIFIC LITERATURE

External reference:

IDSource
4030724 VUID
N0000182734 NUI
D09539 KEGG_DRUG
4020833 VANDF
4030724 VANDF
C2700226 UMLSCUI
CHEBI:68840 CHEBI
GBN PDB_CHEM_ID
CHEMBL1628502 ChEMBL_ID
DB08872 DRUGBANK_ID
C493250 MESH_SUPPLEMENTAL_RECORD_UI
7560 IUPHAR_LIGAND_ID
8611 INN_ID
75OCL1SPBQ UNII
9883933 PUBCHEM_CID
1095698 RXNORM
180816 MMSL
27821 MMSL
4770 MMSL
60712 MMSL
d03182 MMSL
004415 NDDF
013726 NDDF
108402001 SNOMEDCT_US
386845007 SNOMEDCT_US
703122000 SNOMEDCT_US
C0060926 UMLSCUI
DB00996 DRUGBANK_ID
3446 PUBCHEM_CID
5094 INN_ID
D000077206 MESH_DESCRIPTOR_UI
CHEBI:42797 CHEBI

Pharmaceutical products:

ProductCategoryIngredientsNDCFormQuantityRouteMarketingLabel
Horizant HUMAN PRESCRIPTION DRUG LABEL 1 53451-0101 TABLET, EXTENDED RELEASE 600 mg ORAL NDA 35 sections
Horizant HUMAN PRESCRIPTION DRUG LABEL 1 53451-0103 TABLET, EXTENDED RELEASE 300 mg ORAL NDA 35 sections