nalmefene ๐Ÿถ Veterinary Use | Indications/Contra | FAERs-F | FAERs-M | Orange Bk | PK/Tox | Related Drugs | BioActivity |

Stem definitionDrug idCAS RN
opioid receptor antagonists/agonists related to normorphine 1876 55096-26-9

Description:

MoleculeDescription

Molfile Inchi Smiles

Synonyms:

  • nalmefene
  • nalmefene hydrochloride dihydrate
  • selincro
  • nalmetrene
  • 6-desoxy-6-methylenenaltrexone
  • nalmefene hydrochloride
  • nalmefene HCl
  • ORF-11676
  • nalmefene hydrochloride hydrate
  • Molecular weight: 339.44
  • Formula: C21H25NO3
  • CLOGP: 2.30
  • LIPINSKI: 0
  • HAC: 4
  • HDO: 2
  • TPSA: 52.93
  • ALOGS: -2.61
  • ROTB: 2

  • Status: OFP

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

Drug dosage:

DoseUnitRoute
18 mg O

ADMET properties:

PropertyValueReference
BDDCS (Biopharmaceutical Drug Disposition Classification System) 1 Benet LZ, Broccatelli F, Oprea TI
S (Water solubility) 124 mg/mL Benet LZ, Broccatelli F, Oprea TI
EoM (Fraction excreted unchanged in urine) 9.60 % Benet LZ, Broccatelli F, Oprea TI
MRTD (Maximum Recommended Therapeutic Daily Dose) 2.80 ยตM/kg/day Contrera JF, Matthews EJ, Kruhlak NL, Benz RD
BA (Bioavailability) 40 % Kim MT, Sedykh A, Chakravarti SK, Saiakhov RD, Zhu H
Vd (Volume of distribution) 8.20 L/kg Lombardo F, Berellini G, Obach RS
CL (Clearance) 15 mL/min/kg Lombardo F, Berellini G, Obach RS
fu (Fraction unbound in plasma) 0.65 % Lombardo F, Berellini G, Obach RS
t_half (Half-life) 8.80 hours Lombardo F, Berellini G, Obach RS

Predicted pharmacokinetic/toxicological properties (PK-AZ):

PropertyDescriptionValueUnitConfidenceSimilarity
azlogd74 LogD at pH 7.4 2.615 High 0.81
caco2-efflux Caco-2 efflux ratio (BA/AB) 1.905 High 0.81
caco2-intrinsic-papp Caco-2 intrinsic apparent permeability 26.853 10^-6 cm/s High 0.81
dh-clint Dog hepatocyte intrinsic clearance 26.730 uL/min/10^6 cells High 0.81
dppb Dog plasma protein binding (% unbound) 20.190 % High 0.81
fcs-ppb Fetal calf serum protein binding (% unbound) 42.570 % High 0.81
herg hERG pIC50 5.239 pIC50 High 0.81
hh-clint Human hepatocyte intrinsic clearance 8.035 uL/min/10^6 cells High 0.81
hlm-clint Human liver microsomal intrinsic clearance 29.512 uL/min/mg protein High 0.81
hppb Human plasma protein binding (% unbound) 26.230 % High 0.81
kinase-safety-class ACVR2B,AXL,BRAF,BTK,CAMK2D,CDK5,EIF2AK3,ERBB2,GRK2,ITK,MAP2K6,MAPK10,MAPK7,NTRK2,PDK1,PDK2,PDK4,PIK3CA,PRKDC,TEK,TGFBR1 21
kinase-selectivity-class EIF2AK3,GRK2,MAP2K6,MAP3K14 4
mdck-mdr1-bcrp-efflux MDCK-MDR1-BCRP efflux ratio 1.069 High 0.81
mdck-mdr1-efflux MDCK-MDR1 efflux ratio 2.466 High 0.81
mh-clint Mouse hepatocyte intrinsic clearance 61.660 High 0.81
mppb Mouse plasma protein binding (% unbound) 22.990 High 0.81
nih-mdck-mdr1-efflux NIH MDCK-MDR1 efflux ratio 8.091 High 0.81
pfas-class PFAS structural alert (1 = True, 0 = False) 0
pld-class Phospholipidosis risk class (1 = positive, 0 = negative) 0 High 0.81
pppb Pig plasma protein binding (% unbound) 36.470 % High 0.81
rat-kpuu-brain Rat brain Kpuu 0.233 % High 0.81
rh-clint Rat hepatocyte intrinsic clearance 103.753 uL/min/10^6 cells High 0.81
rh-fuinc Rat hepatocyte fraction unbound in incubation 56.750 % High 0.81
rppb Rat plasma protein binding (% unbound) 15.970 % High 0.81
solubility-dd Solubility at pH 7.4 in DMSO 659.174 uM High 0.81

Approvals:

DateAgencyCompanyOrphan
Aug. 1, 2019 PMDA OTSUKA PHARMACEUTICAL CO., LTD.
April 17, 1995 FDA EUROHLTH INTL SARL

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
Coma 104.08 90.60 29 357 72603 90555458

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
Drug withdrawal syndrome 117.55 72.76 30 422 21519 42599364
Coma 106.97 72.76 34 418 53520 42567363

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
Coma 198.51 68.31 61 794 117808 110470636
Drug withdrawal syndrome 162.70 68.31 41 814 38013 110550431
Drug interaction 83.12 68.31 50 805 500133 110088311
Respiratory depression 77.26 68.31 22 833 31979 110556465

FDA Adverse Event Reporting System (Pediatric)

None

Pharmacologic Action:

SourceCodeDescription
ATC N07BB05 NERVOUS SYSTEM
OTHER NERVOUS SYSTEM DRUGS
DRUGS USED IN ADDICTIVE DISORDERS
Drugs used in alcohol dependence
FDA MoA N0000000154 Opioid Antagonists
MeSH PA D002491 Central Nervous System Agents
MeSH PA D009292 Narcotic Antagonists
MeSH PA D018373 Peripheral Nervous System Agents
MeSH PA D018689 Sensory System Agents
FDA EPC N0000175691 Opioid Antagonist

Related Drugs by ATC class:

N07BB Drugs used in alcohol dependence 4 drugs

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

DiseaseRelationSNOMED_IDDOID
Alcoholism indication 7200002
Poisoning by opiate analgesic drug indication 241749009
Opiate-Induced Respiratory Depression indication




๐Ÿถ Veterinary Drug Use

None

๐Ÿถ Veterinary products

None

Acid dissociation constants calculated using MoKa v3.0.0

Dissociation levelDissociation constantType (acidic/basic)
pKa1 9.73 acidic
pKa2 8.16 Basic

Orange Book patent data (new drug applications)

Formulation strengthTrade nameApplicantApplication numberApproval dateTypeDose formRoutePatent numberPatent expiration datePatent use
EQ 2.7MG BASE/SPRAY OPVEE INDIVIOR N217470 May 22, 2023 RX SPRAY NASAL 11458091 July 10, 2038 TREATING OPIOID OVERDOSE
EQ 1.5MG BASE/0.5ML (EQ 1.5MG BASE/0.5ML) ZURNAI (AUTOINJECTOR) KNOA PHARMA N218590 Aug. 7, 2024 RX SOLUTION INTRAMUSCULAR, SUBCUTANEOUS 11865112 Nov. 5, 2039 TREATING OPIOID OVERDOSE
EQ 2.7MG BASE/SPRAY OPVEE INDIVIOR N217470 May 22, 2023 RX SPRAY NASAL 12290596 Aug. 4, 2042 EMERGENCY TREATMENT OF A KNOWN OR SUSPECTED OPIOID OVERDOSE/SYMPTOM THEREOF IN A HUMAN CAUSED BY NATURAL OR SYNTHETIC OPIOIDS, SUCH AS REMIFENTANIL-INDUCED RESPIRATORY DEPRESSION, WITH 2.7MG NALMEFENE, ADMINISTERED AS 3MG NALMEFENE HYDROCHLORIDE

Orange Book exclusivity data (new drug applications)

Formulation strengthTrade nameApplicantApplication numberApproval dateTypeDose formRouteExclusivity dateDescription
EQ 2.7MG BASE/SPRAY OPVEE INDIVIOR N217470 May 22, 2023 RX SPRAY NASAL May 22, 2026 NEW PRODUCT
EQ 1.5MG BASE/0.5ML (EQ 1.5MG BASE/0.5ML) ZURNAI (AUTOINJECTOR) KNOA PHARMA N218590 Aug. 7, 2024 RX SOLUTION INTRAMUSCULAR, SUBCUTANEOUS Aug. 7, 2027 NEW PRODUCT

Bioactivity Summary:

TargetClassPharosUniProtActionTypeActivity value
(-log[M])
Mechanism
action
Bioact sourceMoA source
Mu-type opioid receptor GPCR ANTAGONIST Kd 9.53 CHEMBL CHEMBL
Kappa-type opioid receptor GPCR ANTAGONIST Ki 9.92 CHEMBL CHEMBL
Delta-type opioid receptor GPCR ANTAGONIST Kd 9.04 CHEMBL CHEMBL
Mu-type opioid receptor GPCR Ki 9.54 CHEMBL
Delta-type opioid receptor GPCR Ki 8.47 CHEMBL
Kappa-type opioid receptor GPCR Ki 8.70 CHEMBL

External reference:

IDSource
TOV02TDP9I UNII
4023995 VUID
N0000022000 NUI
D05111 KEGG_DRUG
1228646-70-5 SECONDARY_CAS_RN
4020923 VANDF
4023995 VANDF
C0068377 UMLSCUI
CHEBI:7457 CHEBI
CHEMBL982 ChEMBL_ID
5284594 PUBCHEM_CID
DB06230 DRUGBANK_ID
CHEMBL5315055 ChEMBL_ID
CHEMBL1201152 ChEMBL_ID
5189 INN_ID
C038981 MESH_SUPPLEMENTAL_RECORD_UI
1628 IUPHAR_LIGAND_ID
58895-64-0 SECONDARY_CAS_RN
236069 RXNORM
357929 MMSL
42151 MMSL
5149 MMSL
d03834 MMSL
005023 NDDF
005024 NDDF
109098006 SNOMEDCT_US
361000220103 SNOMEDCT_US
412252005 SNOMEDCT_US
764607009 SNOMEDCT_US
TOV02TDP9I INXIGHT DRUGS

Pharmaceutical products:

ProductCategoryIngredientsNDCFormQuantityRouteMarketingLabel
OPVEE HUMAN PRESCRIPTION DRUG LABEL 1 12496-0003 SPRAY 2.70 mg NASAL NDA 29 sections
NALMEFENE HYDROCHLORIDE HUMAN PRESCRIPTION DRUG LABEL 1 59011-960 INJECTION, SOLUTION 1 mg INTRAMUSCULAR ANDA 22 sections
Zurnai HUMAN PRESCRIPTION DRUG LABEL 1 59011-962 INJECTION, SOLUTION 1.50 mg INTRAMUSCULAR NDA 29 sections
nalmefene hydrochloride HUMAN PRESCRIPTION DRUG LABEL 1 82432-101 SOLUTION 0.10 mg INTRAVENOUS ANDA 17 sections
nalmefene hydrochloride HUMAN PRESCRIPTION DRUG LABEL 1 82432-102 SOLUTION 2 mg INTRAVENOUS ANDA 17 sections