MedPath

Nalmefene

Generic Name
Nalmefene
Brand Names
Opvee, Revex, Selincro
Drug Type
Small Molecule
Chemical Formula
C21H25NO3
CAS Number
55096-26-9
Unique Ingredient Identifier
TOV02TDP9I

Overview

Nalmefene, a 6-methylene analogue of naltrexone, is an opioid receptor antagonist. It acts as an antagonist at the mu (μ)-opioid and delta (δ)-opioid receptors and a partial agonist at the kappa (κ)-opioid receptor. In Europe, nalmefene oral tablets are used to reduce alcohol consumption in adults with alcohol dependence. Nalmefene was approved in the United States in 1995 as an antidote for opioid overdose. Nalmefene injection is used to manage known or suspected opioid overdose. It is used for complete or partial reversal of opioid drug effects, including respiratory depression, induced by either natural or synthetic opioids. The nasal spray formulation of nalmefene was approved by the FDA in May 2023.

Indication

Nalmefene oral tablet is indicated for the reduction of alcohol consumption in adult patients with alcohol dependence who have a high drinking risk level (DRL), without physical withdrawal symptoms and who do not require immediate detoxification. Nalmefene should only be prescribed in conjunction with continuous psychosocial support focused on treatment adherence and reducing alcohol consumption. Nalmefene should be initiated only in patients who continue to have a high DRL two weeks after the initial assessment. Nalmefene injection and nasal spray are indicated for the complete or partial reversal of opioid drug effects, including respiratory depression, induced by either natural or synthetic opioids. They are also indicated in the management of known or suspected opioid overdose. Nalmefene injection can be used for postoperative opioid overdose reversal.

Associated Conditions

  • Alcohol Dependency
  • Opioid Overdose

FDA Drug Approvals

Approved Product
Manufacturer
NDC Code
Route
Strength
Effective Date
Chengdu Shuode Pharmaceutical Co., Ltd
82432-101
INTRAVENOUS, INTRAMUSCULAR, SUBCUTANEOUS
0.1 mg in 1 mL
12/8/2023
Indivior Inc.
12496-0003
NASAL
2.7 mg in 100 uL
11/20/2023
Purdue Pharma L.P.
59011-960
INTRAMUSCULAR, INTRAVENOUS, SUBCUTANEOUS
1 mg in 1 mL
12/1/2023
Chengdu Shuode Pharmaceutical Co., Ltd
82432-102
INTRAVENOUS, INTRAMUSCULAR, SUBCUTANEOUS
2 mg in 2 mL
12/8/2023

EMA Drug Approvals

Approved Product
Authorization Holder
Status
Issued Date
No EMA approvals found for this drug.

HSA Drug Approvals

Approved Product
Manufacturer
Approval Number
Dosage Form
Strength
Approval Date
No HSA approvals found for this drug.

NMPA Drug Approvals

Approved Product
Company
Approval Number
Drug Type
Dosage Form
Approval Date
No NMPA approvals found for this drug.

PPB Drug Approvals

Approved Product
Registration No.
Company
Licence No.
Strength
Registration Date
No PPB approvals found for this drug.

TGA Drug Approvals

Approved Product
ARTG ID
Sponsor
Registration Type
Status
Registration Date
No TGA approvals found for this drug.

Health Canada Drug Approvals

Approved Product
Company
DIN
Dosage Form
Strength
Market Date
No Health Canada approvals found for this drug.

CIMA AEMPS Drug Approvals

Approved Product
Company
Registration Number
Pharmaceutical Form
Prescription Type
Status
SELINCRO 18 MG COMPRIMIDOS RECUBIERTOS CON PELICULA
112815002
COMPRIMIDO RECUBIERTO CON PELÍCULA
Medicamento Sujeto A Prescripción Médica
Commercialized
SELINCRO 18 MG COMPRIMIDOS RECUBIERTOS CON PELICULA
112815002IP
COMPRIMIDO RECUBIERTO CON PELÍCULA
Medicamento Sujeto A Prescripción Médica
Not Commercialized

Philippines FDA Drug Approvals

Approved Product
Company
License Number
Dosage Form
Strength
Approval Date
No Philippines FDA approvals found for this drug.

Saudi SFDA Drug Approvals

Approved Product
Company
License Number
Dosage Form
Strength
Approval Date
No Saudi SFDA approvals found for this drug.

Malaysia NPRA Drug Approvals

Approved Product
Company
Registration Number
Dosage Form
Strength
Approval Date
No Malaysia NPRA approvals found for this drug.

UK EMC Drug Information

Medicine Name
MA Holder
MA Number
Pharmaceutical Form
Active Ingredient
Authorization Date
No UK EMC drug information found for this drug.

Help Us Improve

Your feedback helps us provide better drug information and insights.

MedPath

Empowering clinical research with data-driven insights and AI-powered tools.

© 2025 MedPath, Inc. All rights reserved.