LEVORPHANOL TARTRATE

First approved in 1953

Details

Stereochemistry	ABSOLUTE
Molecular Formula	C17H23NO.C4H6O6.2H2O
Molecular Weight	443.488
Optical Activity	UNSPECIFIED
Defined Stereocenters	5 / 5
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

O.O.O[C@H]([C@@H](O)C(O)=O)C(O)=O.CN1CC[C@]23CCCC[C@H]2[C@H]1CC4=CC=C(O)C=C34

InChI

InChIKey=UMZNDVASJKIQCB-QLFXFZCRSA-N

InChI=1S/C17H23NO.C4H6O6.2H2O/c1-18-9-8-17-7-3-2-4-14(17)16(18)10-12-5-6-13(19)11-15(12)17;5-1(3(7)8)2(6)4(9)10;;/h5-6,11,14,16,19H,2-4,7-10H2,1H3;1-2,5-6H,(H,7,8)(H,9,10);2*1H2/t14-,16+,17+;1-,2-;;/m01../s1

HIDE SMILES / InChI

Molecular Formula	H2O
Molecular Weight	18.0153
Charge	0
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	0
Optical Activity	NONE

Molecular Formula	C4H6O6
Molecular Weight	150.0868
Charge	0
Count

Stereochemistry	ABSOLUTE
Additional Stereochemistry	No
Defined Stereocenters	2 / 2
E/Z Centers	0
Optical Activity	UNSPECIFIED

Molecular Formula	C17H23NO
Molecular Weight	257.3706
Charge	0
Count

Stereochemistry	ABSOLUTE
Additional Stereochemistry	No
Defined Stereocenters	3 / 3
E/Z Centers	0
Optical Activity	UNSPECIFIED

Description
Sources: https://www.drugs.com/pro/levorphanol.html | https://www.ncbi.nlm.nih.gov/pubmed/17039381

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.

CNS Activity

Originator

Approval Year

Targets

Primary Target	Pharmacology	Potency
Mu opioid receptor 231 Target ID: CHEMBL233 Sources: https://www.ncbi.nlm.nih.gov/pubmed/17039381 \| https://www.ncbi.nlm.nih.gov/pubmed/17276685	Agonist 2752	0.21 nM [Ki]
Delta opioid receptor 81 Target ID: CHEMBL236 Sources: https://www.ncbi.nlm.nih.gov/pubmed/17039381	Agonist 2752	4.2 nM [Ki]
Kappa opioid receptor 115 Target ID: CHEMBL237 Sources: https://www.ncbi.nlm.nih.gov/pubmed/17039381	Agonist 2752	2.3 nM [Ki]

Conditions

Condition	Modality	Targets	Highest Phase	Product
Pain 619 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/2000/074278.PDF	Palliative		Approved 8583	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

CYP3A4	CYP2C9	CYP2D6	hERG
substrate 1946 inhibitor 2252		substrate 1388 inhibitor 2507

OverviewOther

Other Inhibitor	Other Substrate	Other Inducer

Drug as perpetrator

Target	Modality	Activity	Metabolite	Clinical evidence
CYP2D6 2546	inhibitor 4027 Sources: https://pubmed.ncbi.nlm.nih.gov/19797609/	yes [IC50 11.5 uM]
CYP3A4 2633	inhibitor 4027 Sources: https://pubmed.ncbi.nlm.nih.gov/19797609/	yes [IC50 >50 uM]

Drug as victim

Target	Modality	Activity	Metabolite	Clinical evidence
CYP2D6 1388	substrate 4014 Sources: https://pubmed.ncbi.nlm.nih.gov/19797609/	yes
CYP3A4 1946	substrate 4014 Sources: https://pubmed.ncbi.nlm.nih.gov/19797609/	yes

Sourcing

Vendor/Aggregator	ID	URL
AAA Chemistry	AR-1E1926
ABI Chem	AC1L1H05
ABI Chem	AC1Q7AI1
AHH Chemical co.,ltd	MT-53063	http://www.ahhchemical.com/product/MT-53063.html
BioChemPartner	BCP24334	http://www.biochempartner.com/125-73-5-BCP24334
BOC Sciences	125-73-5	https://www.bocsci.com/dextromethorphan-ep-impurity-b-dextrorphan-cas-125-73-5-item-470048.html
Clearsynth	CS-O-16970	https://www.clearsynth.com/en/CSO16970.html
Compound Cloud	5359272
Compound Cloud	5462348
eMolecules	261267554
eMolecules	48858227
HongKong Chemhere	SCA54099
MuseChem	I014442
NovoSeek	3918
NovoSeek	5390113
Smolecule	S532999	http://www.smolecule.com/products/s532999
Tetrahedron	TS81326
THE BioTek	bt-272670	https://www.thebiotek.com/product/inhibitors/bt-272670
Toronto Research Chemicals	KIT8295
Yick-Vic Chemicals & Pharmaceuticals (HK) Ltd.	PH-0703A
ZINC	ZINC000003812984	http://zinc15.docking.org/substances/ZINC000003812984

PubMed

Title	Date	PubMed
Comparison of opioid agonists in maintaining responding and in suppressing morphine withdrawal in rhesus monkeys.	1981	6794076
Prostaglandin hyperalgesia, V: a peripheral analgesic receptor for opiates.	1982 Jan	6278540
Relative cataleptic potency of narcotic analgesics, including 3,6-dibutanoylmorphine and 6-monoacetylmorphine.	1984	6543399
Effect of prolyl-leucyl-glycinamide and alpha-melanocyte-stimulating hormone on levorphanol-induced analgesia, tolerance and dependence.	1984 Jun 25	6146083
Baclofen-induced catatonia.	1986 Dec	3805341
Differential effects of morphinan drugs on haloperidol-induced catalepsy in rats: a comparative study with an N-methyl-D-aspartate antagonist.	1991 Mar-Apr	1685312
Serotonin and norepinephrine uptake inhibiting activity of centrally acting analgesics: structural determinants and role in antinociception.	1995 Sep	7562497
Age-related differences in sensitivity to the antinociceptive effects of opioids in male rats. Influence of nociceptive intensity and intrinsic efficacy at the mu receptor.	2001 Aug	11498722
Central discriminative effects of morphine in rats: training via intracerebroventricular administration.	2001 Dec	11786240
The safety of dextromethorphan in pregnancy : results of a controlled study.	2001 Feb	11171724
Pitfalls of opioid rotation: substituting another opioid for methadone in patients with cancer pain.	2002 Apr	11973005
Interface for coupling nonaqueous wide-bore capillary electrophoresis with mass spectrometry.	2002 Feb	11870745
Clinical pharmacology of opioids for pain.	2002 Jul-Aug	12479250
Antidepressant-like effects of tramadol and other central analgesics with activity on monoamines reuptake, in helpless rats.	2002 Nov 29	12417248
Sex-related differences in mechanical nociception and antinociception produced by mu- and kappa-opioid receptor agonists in rats.	2002 Oct 4	12354566
Differential effects of agonists on adenylyl cyclase superactivation mediated by the kappa opioid receptors: adenylyl cyclase superactivation is independent of agonist-induced phosphorylation, desensitization, internalization, and down-regulation.	2003 Dec	14557376
The power of visual imagery in drug design. Isopavines as a new class of morphinomimetics and their human opioid receptor binding activity.	2003 Jan 2	12502358
Discrimination of a single dose of morphine followed by naltrexone: substitution of other agonists for morphine and other antagonists for naltrexone in a rat model of acute dependence.	2003 Mar	12604679
Opioids ease neuropathic pain, but..	2003 May	12739461
Discriminative stimulus effects of acute morphine followed by naltrexone in the squirrel monkey.	2003 May	12644889
Differential regulation of the human kappa opioid receptor by agonists: etorphine and levorphanol reduced dynorphin A- and U50,488H-induced internalization and phosphorylation.	2003 May	12606694
10-Ketomorphinan and 3-substituted-3-desoxymorphinan analogues as mixed kappa and micro opioid ligands: synthesis and biological evaluation of their binding affinity at opioid receptors.	2004 Jan 1	14695830
Comparison of the effects of dextromethorphan, dextrorphan, and levorphanol on the hypothalamo-pituitary-adrenal axis.	2004 May	14742749
Antidepressant-like effect of tramadol and its enantiomers in reserpinized mice: comparative study with desipramine, fluvoxamine, venlafaxine and opiates.	2004 Sep	15358985
[Fundamentals of modern treatment of myopia].	2005	16519089
Social and environmental influences on opioid sensitivity in rats: importance of an opioid's relative efficacy at the mu-receptor.	2005 Aug	15778888
Analgesic therapy in postherpetic neuralgia: a quantitative systematic review.	2005 Jul	16013891
Discriminative stimulus effects of acute morphine followed by naltrexone in the squirrel monkey: a further characterization.	2005 Jul	15843500
Over-the-counter cold medications-postmortem findings in infants and the relationship to cause of death.	2005 Oct	16419411
Chronic exercise decreases sensitivity to mu opioids in female rats: correlation with exercise output.	2006 Sep	16904173
Can levorphanol be used like methadone for intractable refractory pain?	2007 Apr	17472497
Cholesterol reduction by methyl-beta-cyclodextrin attenuates the delta opioid receptor-mediated signaling in neuronal cells but enhances it in non-neuronal cells.	2007 Feb 15	17141202
Levorphanol: the forgotten opioid.	2007 Mar	17039381
Opiates and elderly: use and side effects.	2008	18686750
Challenges in using opioids to treat pain in persons with substance use disorders.	2008 Jun	18497713
A retrospective study on the impact of comorbid depression or anxiety on healthcare resource use and costs among diabetic neuropathy patients.	2009 Jun 30	19566952
Somatostatin and opioid receptors do not regulate proliferation or apoptosis of the human multiple myeloma U266 cells.	2009 Jun 7	19500423
Chronic pain: levorphanol, methadone, and the N-methyl-D-aspartate receptor.	2009 Sep	19719367
Exploration of catalytic properties of CYP2D6 and CYP3A4 through metabolic studies of levorphanol and levallorphan.	2010 Jan	19797609
Synthesis and opioid receptor binding affinities of 2-substituted and 3-aminomorphinans: ligands for mu, kappa, and delta opioid receptors.	2010 Jan 14	19928862
Acute pain management in children.	2010 Jul 15	21197314

Patents

Sample Use Guides

In Vivo Use Guide

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.

Substance Class	Chemical Created by `admin` on `Mon Mar 31 18:01:23 GMT 2025` Edited by `admin` on `Mon Mar 31 18:01:23 GMT 2025`
Record UNII	04WQU6T9QI
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

LEVO-DROMORAN

Preferred Name

English

LEVORPHANOL TARTRATE

Common Name

English

RO-1-5431/7

Code

English

Levorphanol tartrate dihydrate [WHO-DD]

Common Name

English

17-Methylmorphinan-3-ol, tartrate (1:1) (salt) dihydrate

Common Name

English

LEVORPHANOL TARTRATE [MART.]

Common Name

English

LEVORPHANOL TARTRATE DIHYDRATE [MI]

Common Name

English

LEVORPHANOL TARTRATE [USP-RS]

Common Name

English

MORPHINAN-3-OL, 17-METHYL-, (R-(R*,R*))-2,3-DIHYDROXYBUTANEDIOATE (1:1) (SALT), DIHYDRATE

Common Name

English

LEVORPHANOL TARTRATE [USP MONOGRAPH]

Common Name

English

LEVORPHANOL TARTRATE [VANDF]

Common Name

English

LEVORPHANOL TARTRATE [ORANGE BOOK]

Common Name

English

Classification Tree Code System Code

NCI_THESAURUS

C1506