Date published: 2025-10-15

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Nalmefene hydrochloride (CAS 58895-64-0)

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Alternate Names:
Nalmefene hydrochloride is also known as
Application:
Nalmefene hydrochloride is an opioid receptor antagonist
CAS Number:
58895-64-0
Molecular Weight:
375.89
Molecular Formula:
C21H25NO3•HCl
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Nalmefene hydrochloride has been reported to be an opioid receptor antagonist. The opioid family of G-protein-coupled receptors contains three types of opioids mu opioid receptor (MOR), delta opioid receptor (DOR), and kappa opioid receptor (KOR). Activating these receptors leads to the release of neurotransmitters such as dopamine, serotonin, and norepinephrine. Nalmefene hydrochloride has been studied for its various biological activities, including anti-inflammatory, anti-nociceptive, anticonvulsant, and neuroprotective effects.


Nalmefene hydrochloride (CAS 58895-64-0) References

  1. Acute effects of nalmefene on LH, prolactin, and testosterone in male rhesus monkeys.  |  Mello, NK., et al. 2000. Pharmacol Biochem Behav. 66: 275-83. PMID: 10880679
  2. Synergistic effects of cannabinoid inverse agonist AM251 and opioid antagonist nalmefene on food intake in mice.  |  Chen, RZ., et al. 2004. Brain Res. 999: 227-30. PMID: 14759503
  3. Prolonged central mu-opioid receptor occupancy after single and repeated nalmefene dosing.  |  Ingman, K., et al. 2005. Neuropsychopharmacology. 30: 2245-53. PMID: 15956985
  4. The permeation of nalmefene hydrochloride across different regions of ovine nasal mucosa.  |  Du, G., et al. 2006. Chem Pharm Bull (Tokyo). 54: 1722-4. PMID: 17139110
  5. In vivo characterization of the opioid antagonist nalmefene in mice.  |  Osborn, MD., et al. 2010. Life Sci. 86: 624-30. PMID: 20159022
  6. Potent inhibition of alcohol self-administration in alcohol-preferring rats by a κ-opioid receptor antagonist.  |  Cashman, JR. and Azar, MR. 2014. J Pharmacol Exp Ther. 350: 171-80. PMID: 24817033
  7. In Vitro and In Vivo Evaluations of PLGA Microspheres Containing Nalmefene.  |  Xie, X., et al. 2015. PLoS One. 10: e0125953. PMID: 25938514
  8. Fighting Fire with Fire: Development of Intranasal Nalmefene to Treat Synthetic Opioid Overdose.  |  Krieter, P., et al. 2019. J Pharmacol Exp Ther. 371: 409-415. PMID: 30940694
  9. Clinically utilized kappa-opioid receptor agonist nalfurafine combined with low-dose naltrexone prevents alcohol relapse-like drinking in male and female mice.  |  Zhou, Y. and Kreek, MJ. 2019. Brain Res. 1724: 146410. PMID: 31469985
  10. Effects of nalmefene hydrochloride on TLR4 signaling pathway in rats with lung ischemia-reperfusion injury.  |  Zhang, NL., et al. 2020. Eur Rev Med Pharmacol Sci. 24: 461-468. PMID: 31957861
  11. Naloxone and nalmefene absorption delivered by hollow microneedles compared to intramuscular injection.  |  Papich, MG. and Narayan, RJ. 2022. Drug Deliv Transl Res. 12: 376-383. PMID: 34817831
  12. Effect of Different Absorption Enhancers on the Nasal Absorption of Nalmefene Hydrochloride.  |  Zhang, T., et al. 2022. AAPS PharmSciTech. 23: 143. PMID: 35578146
  13. Sufentanil combined with nalmefene reduce the adverse events in recovery period of patients undergoing uvulopalatopharyngoplasty - A randomized controlled trial.  |  Wang, J., et al. 2023. Heliyon. 9: e13241. PMID: 36755590

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Nalmefene hydrochloride, 100 mg

sc-361270
100 mg
$156.00

Nalmefene hydrochloride, 500 mg

sc-361270A
500 mg
$290.00

Nalmefene hydrochloride, 1 g

sc-361270B
1 g
$370.00

Nalmefene hydrochloride, 5 g

sc-361270C
5 g
$875.00

Nalmefene hydrochloride, 10 g

sc-361270D
10 g
$1299.00