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Details

Stereochemistry RACEMIC
Molecular Formula 2C17H23NO.2BrH.H2O
Molecular Weight 694.58
Optical Activity ( + / - )
Defined Stereocenters 6 / 6
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of RACEMORPHAN HYDROBROMIDE HEMIHYDRATE

SMILES

O.Br.Br.[H][C@@]12CC3=C(C=C(O)C=C3)[C@]4(CCCC[C@@]14[H])CCN2C.[H][C@@]56CC7=C(C=C(O)C=C7)[C@]8(CCCC[C@@]58[H])CCN6C

InChI

InChIKey=YJHAKXBQBWSVOL-BYVCFMHPSA-N
InChI=1S/2C17H23NO.2BrH.H2O/c2*1-18-9-8-17-7-3-2-4-14(17)16(18)10-12-5-6-13(19)11-15(12)17;;;/h2*5-6,11,14,16,19H,2-4,7-10H2,1H3;2*1H;1H2/t2*14-,16+,17+;;;/m00.../s1

HIDE SMILES / InChI
Levorphanol, brand name Levo-Dromoran, is an opioid medication used to treat moderate to severe pain. Levorphanol is indicated for the management of moderate to severe pain where an opioid analgesic is appropriate. It is a potent synthetic opioid mu-receptor agonist similar in action to morphine. Like other opioid mu-receptor agonists, it is believed to act at receptors in both the brain and spinal cord to alter the transmission and perception of pain. The onset and peak analgesic effects following administration of levorphanol are similar to morphine when administered at equal analgesic doses. Levorphanol produces a degree of respiratory depression similar to that produced by morphine at equal analgesic doses, and like many opioid mu-receptor agonists, levorphanol produces euphoria or has a positive effect on mood in many individuals.

Originator

Curator's Comment: Levorphanol was initially synthesized in Germany in 1946

Approval Year

Targets

Targets

Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Palliative
Levorphanol Tartrate

Approved Use

Levorphanol Tartrate Tablets are indicated for the management of pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate.

Launch Date

1953
Overview

Overview

OverviewOther

Other InhibitorOther SubstrateOther Inducer
Drug as perpetrator​

Drug as perpetrator​

TargetModalityActivityMetaboliteClinical evidence
yes [IC50 11.5 uM]
yes [IC50 >50 uM]
Drug as victim

Drug as victim

PubMed

PubMed

TitleDatePubMed
Comparison of opioid agonists in maintaining responding and in suppressing morphine withdrawal in rhesus monkeys.
1981
Relative cataleptic potency of narcotic analgesics, including 3,6-dibutanoylmorphine and 6-monoacetylmorphine.
1984
Effect of prolyl-leucyl-glycinamide and alpha-melanocyte-stimulating hormone on levorphanol-induced analgesia, tolerance and dependence.
1984 Jun 25
Baclofen-induced catatonia.
1986 Dec
Differential effects of morphinan drugs on haloperidol-induced catalepsy in rats: a comparative study with an N-methyl-D-aspartate antagonist.
1991 Mar-Apr
Serotonin and norepinephrine uptake inhibiting activity of centrally acting analgesics: structural determinants and role in antinociception.
1995 Sep
Clinical pharmacology of opioids for pain.
2002 Jul-Aug
Sex-related differences in mechanical nociception and antinociception produced by mu- and kappa-opioid receptor agonists in rats.
2002 Oct 4
Sensitivity to the effects of opioids in rats with free access to exercise wheels: mu-opioid tolerance and physical dependence.
2003 Aug
Opioids and chronic neuropathic pain.
2003 Mar 27
Oral opioid therapy for chronic peripheral and central neuropathic pain.
2003 Mar 27
Opioids ease neuropathic pain, but..
2003 May
Interactions between opioids and cocaine on locomotor activity in rats: influence of an opioid's relative efficacy at the mu receptor.
2003 May
Discriminative stimulus effects of acute morphine followed by naltrexone in the squirrel monkey.
2003 May
The competitive N-methyl-D-aspartate receptor antagonist (-)-6-phosphonomethyl-deca-hydroisoquinoline-3-carboxylic acid (LY235959) potentiates the antinociceptive effects of opioids that vary in efficacy at the mu-opioid receptor.
2003 Nov
Comparison of the effects of dextromethorphan, dextrorphan, and levorphanol on the hypothalamo-pituitary-adrenal axis.
2004 May
[Fundamentals of modern treatment of myopia].
2005
Discriminative stimulus effects of acute morphine followed by naltrexone in the squirrel monkey: a further characterization.
2005 Jul
Restless legs syndrome: diagnosis and review of management options.
2006 Jun
Chronic exercise decreases sensitivity to mu opioids in female rats: correlation with exercise output.
2006 Sep
Current aproach to cancer pain management: Availability and implications of different treatment options.
2007 Jun
Synthesis and pharmacological evaluation of 6,7-indolo/thiazolo-morphinans--further SAR of levorphanol.
2007 May 31
Morphine reduces local cytokine expression and neutrophil infiltration after incision.
2007 Oct 2
Opiates and elderly: use and side effects.
2008
Challenges in using opioids to treat pain in persons with substance use disorders.
2008 Jun
Preoperative oral dextromethorphan does not reduce pain or morphine consumption after open cholecystectomy.
2009 Jul
A retrospective study on the impact of comorbid depression or anxiety on healthcare resource use and costs among diabetic neuropathy patients.
2009 Jun 30
Somatostatin and opioid receptors do not regulate proliferation or apoptosis of the human multiple myeloma U266 cells.
2009 Jun 7
Chronic pain: levorphanol, methadone, and the N-methyl-D-aspartate receptor.
2009 Sep
Preoperative oral dextromethorphan does not reduce pain or morphine consumption after open cholecystectomy.
2010 Feb
Exploration of catalytic properties of CYP2D6 and CYP3A4 through metabolic studies of levorphanol and levallorphan.
2010 Jan
Synthesis and opioid receptor binding affinities of 2-substituted and 3-aminomorphinans: ligands for mu, kappa, and delta opioid receptors.
2010 Jan 14
Acute pain management in children.
2010 Jul 15
Patents

Sample Use Guides

Usual Adult Dose for Light Sedation Premedication for Anesthesia: 1 to 2 mg IM or subcutaneously, administered 60 to 90 minutes before surgery. Older or debilitated patients usually require less drug. Two mg of levorphanol is approximately equivalent to 10 to 15 mg of morphine or 100 mg of meperidine. Usual Adult Dose for Pain IV: 1 mg every 3 to 6 hours as needed. IM or subcutaneous: 1 to 2 mg every 6 to 8 hours as needed. Oral: 2 mg every 6 to 8 hours as needed. May be increased to 3 mg every 6 to 8 hours.
Route of Administration: Other
In Vitro Use Guide
Levorphanol (5-100 uM), consistently depressed the responses evoked by the putative inhibitory amino acid neurotransmitters glycine and beta-alanine but not GABA in cultured mouse spinal cord neurons.
Name Type Language
RACEMORPHAN HYDROBROMIDE HEMIHYDRATE
Common Name English
MORPHINAN-3-OL, 17-METHYL-, HYDROBROMIDE, HYDRATE (2:1), (±)-
Systematic Name English
MORPHINAN-3-OL, 17-METHYL-, HYDROBROMIDE, HEMIHYDRATE, (±)-
Common Name English
DL-3-HYDROXY-N-METHYLMORPHINAN HYDROBROMIDE HEMIHYDRATE
Common Name English
Code System Code Type Description
CAS
5964-68-1
Created by admin on Sat Dec 16 10:15:09 GMT 2023 , Edited by admin on Sat Dec 16 10:15:09 GMT 2023
PRIMARY
PUBCHEM
121493154
Created by admin on Sat Dec 16 10:15:09 GMT 2023 , Edited by admin on Sat Dec 16 10:15:09 GMT 2023
PRIMARY
FDA UNII
V6H50N056L
Created by admin on Sat Dec 16 10:15:09 GMT 2023 , Edited by admin on Sat Dec 16 10:15:09 GMT 2023
PRIMARY