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Details

Stereochemistry ABSOLUTE
Molecular Formula C23H16O6.C19H24N2OS
Molecular Weight 716.841
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of LEVOMEPROMAZINE EMBONATE

SMILES

COC1=CC2=C(SC3=C(C=CC=C3)N2C[C@H](C)CN(C)C)C=C1.OC(=O)C4=CC5=CC=CC=C5C(CC6=C(O)C(=CC7=CC=CC=C67)C(O)=O)=C4O

InChI

InChIKey=JNCPKZCFLZRHRS-KSLSDJDQSA-N
InChI=1S/C23H16O6.C19H24N2OS/c24-20-16(14-7-3-1-5-12(14)9-18(20)22(26)27)11-17-15-8-4-2-6-13(15)10-19(21(17)25)23(28)29;1-14(12-20(2)3)13-21-16-7-5-6-8-18(16)23-19-10-9-15(22-4)11-17(19)21/h1-10,24-25H,11H2,(H,26,27)(H,28,29);5-11,14H,12-13H2,1-4H3/t;14-/m.1/s1

HIDE SMILES / InChI

Molecular Formula C19H24N2OS
Molecular Weight 328.472
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 1 / 1
E/Z Centers 0
Optical Activity UNSPECIFIED

Molecular Formula C23H16O6
Molecular Weight 388.3695
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Description
Curator's Comment: description was created based on several sources, including https://www.ncbi.nlm.nih.gov/pubmed/26524693

Levomepromazine (also known as methotrimeprazine) is a phenothiazine neuroleptic drug. It is sold in many countries under the generic name (levomepromazine) or under brand names such as Nozinan, Detenler and many more. Levomepromazine is an antipsychotic drug is commonly used as an antiemetic to alleviate nausea and vomiting in palliative care settings particularly in terminal illness. Levomepromazine is a phenothiazine with pharmacological activity similar to that of both chlorpromazine and promethazine. It has the histamine-antagonist properties of the antihistamines together with central nervous system effects resembling those of chlorpromazine. Levomepromazine's antipsychotic effect is largely due to its antagonism of dopamine receptors in the brain. In addition, it can block 5HT2 receptors and some others, like histamine, serotonin.

Approval Year

Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
125 ng/mL
350 mg 1 times / day steady-state, oral
dose: 350 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOMEPROMAZINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
676 ng × h/mL
350 mg 1 times / day steady-state, oral
dose: 350 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOMEPROMAZINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
24 h
350 mg 1 times / day steady-state, oral
dose: 350 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
LEVOMEPROMAZINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
Doses

Doses

DosePopulationAdverse events​
12.5 mg 2 times / day multiple, oral
Recommended
Dose: 12.5 mg, 2 times / day
Route: oral
Route: multiple
Dose: 12.5 mg, 2 times / day
Sources:
unhealthy, 75 years
n = 1
Health Status: unhealthy
Condition: lung cancer, metastatic to bone and lung
Age Group: 75 years
Sex: F
Population Size: 1
Sources:
Disc. AE: Lupus-like syndrome...
AEs leading to
discontinuation/dose reduction:
Lupus-like syndrome (1 patient)
Sources:
130 mg 1 times / day steady, oral
Recommended
Dose: 130 mg, 1 times / day
Route: oral
Route: steady
Dose: 130 mg, 1 times / day
Sources:
unhealthy, adult
n = 30
Health Status: unhealthy
Condition: oligophrenic epileptics
Age Group: adult
Sex: unknown
Population Size: 30
Sources:
AEs

AEs

AESignificanceDosePopulation
Lupus-like syndrome 1 patient
Disc. AE
12.5 mg 2 times / day multiple, oral
Recommended
Dose: 12.5 mg, 2 times / day
Route: oral
Route: multiple
Dose: 12.5 mg, 2 times / day
Sources:
unhealthy, 75 years
n = 1
Health Status: unhealthy
Condition: lung cancer, metastatic to bone and lung
Age Group: 75 years
Sex: F
Population Size: 1
Sources:
OverviewDrug as perpetrator​

Drug as perpetrator​

TargetModalityActivityMetaboliteClinical evidence
no
no
yes [IC50 1.07 uM]
yes [IC50 23.7 uM]
yes [IC50 26.2 uM]
yes [Ki 34 uM]
yes [Ki 47 uM]
yes [Ki 6 uM]
yes
Drug as victimTox targets

Tox targets

TargetModalityActivityMetaboliteClinical evidence
PubMed

PubMed

TitleDatePubMed
Subcutaneous levomepromazine rescue (SLR) for high grade delayed chemotherapy-induced emesis (DCIE).
2003 Nov-Dec
Interspecies variability and drug interactions of loxapine metabolism in liver microsomes.
2003 Oct-Dec
[Hair analysis as a document of oxcarbazepine therapy in fatal levomepromazine poisoning].
2004
Identification of P-glycoprotein substrates and inhibitors among psychoactive compounds--implications for pharmacokinetics of selected substrates.
2004 Aug
Focus on levomepromazine.
2004 Dec
Do the second-generation "atypical neuroleptics" have analgesic properties? A structured evidence-based review.
2004 Dec
Effects of levomepromazine and different desflurane concentrations upon electrocardiographic variables in dogs.
2004 Jan
[Effect of a levopromazine-thymalin combination on the development of toxic edema and swelling in the brain].
2004 Jan-Feb
Approval by MREC of a modified patient information and consent form. does this set a precedent for trials in palliative care?
2004 Jul
Evaluation of laryngeal mask as an alternative to endotracheal intubation in cats anesthetized under spontaneous or controlled ventilation.
2004 Jul
Levomepromazine helps to reduce sleep problems in patients with PTSD.
2004 Jun
Atypical properties of several classes of antipsychotic drugs on the basis of differential induction of Fos-like immunoreactivity in the rat brain.
2004 Nov 26
Intentional overdose of Large Animal Immobilon.
2004 Oct
Combined therapy with low-potency neuroleptic levomepromazine as an adjunct to haloperidol for agitated patients with acute exacerbation of schizophrenia.
2004 Sep
High-dose levomepromazine (methotrimeprazine) to control nausea in carcinoid syndrome.
2004 Summer
Neuroleptic malignant syndrome associated with risperidone in a male with early-onset schizophrenia.
2005 Dec
Determination of several psychiatric drugs in whole blood using capillary gas-liquid chromatography with nitrogen phosphorus detection: comparison of two solid phase extraction procedures.
2005 Dec 20
[Palliative sedation].
2005 Feb 26
[Levomepromazine-induced peripheral edema].
2005 Jan
Low-dose levomepromazine in refractory emesis in advanced cancer patients: an open-label study.
2005 Jan
Inhibition of rat liver CYP2D in vitro and after 1-day and long-term exposure to neuroleptics in vivo-possible involvement of different mechanisms.
2005 Jan
Little effects of low dosage of levomepromazine on plasma risperidone levels.
2005 Mar
False-positive results in the detection of methadone in urines of patients treated with psychotropic substances.
2005 Nov
Interactions between neuroleptics and CYP2C6 in rat liver--in vitro and ex vivo study.
2005 Nov-Dec
Direct effects of neuroleptics on the activity of CYP2A in the liver of rats.
2005 Nov-Dec
The use of levomepromazine in Hyperemesis Gravidarum resistant to drug therapy--a case series.
2005 Nov-Dec
Determination of oxcarbazepine and its metabolites in postmortem blood and hair by means of liquid chromatography with mass detection (HPLC/APCI/MS).
2005 Oct 15
An open study of methotrimeprazine in the management of nausea and vomiting in patients with advanced cancer.
2005 Sep
An epidemiological study on anemia among institutionalized people with intellectual and/or motor disability with special reference to its frequency, severity and predictors.
2006 Apr 3
Neuroleptic drugs in the human brain: clinical impact of persistence and region-specific distribution.
2006 Aug
A kinetic study on the phenothiazine dependent oxidation of NADH by bovine ceruloplasmin.
2006 Feb
Cardiac lesions induced by neuroleptic drugs in the rabbit.
2006 Jan
Levomepromazine versus chlorpromazine in treatment-resistant schizophrenia: a double-blind randomized trial.
2006 Jul
[Neuroleptic malignant syndrome].
2006 May
Optimization of the separation of some psychotropic drugs and their respective metabolites by liquid chromatography.
2006 May 3
Systematic review of antipsychotics for the treatment of hospital-associated delirium in medically or surgically ill patients.
2006 Nov
Quantitative determination of forty-eight antidepressants and antipsychotics in human serum by HPLC tandem mass spectrometry: a multi-level, single-sample approach.
2006 Oct 20
Parametric evaluation of methotrimeprazine-midazolam-ketamine and methotrimeprazine-midazolam-ketamine-xylazine combination in dogs.
2006 Sep-Oct
Simultaneous determination of the antipsychotic drugs levomepromazine and clozapine and their main metabolites in human plasma by a HPLC-UV method with solid-phase extraction.
2007 Feb 1
Simple and simultaneous determination for 12 phenothiazines in human serum by reversed-phase high-performance liquid chromatography.
2007 Jul 1
Continuous infusion in adult females dogs submitted to ovariohysterectomy with midazolam-xylazine and/or medetomidine pre-treated with methotrimeprazine and buprenorphine.
2007 Jul-Aug
Hypothermia following antipsychotic drug use.
2007 Jun
Simultaneous prescribing of atypical antipsychotics, conventional antipsychotics and anticholinergics-a European study.
2007 Jun
A fatal case of amoxapine poisoning under the influence of chronic use of psychotropic drugs.
2007 Mar
Possible levomepromazine-clozapine interaction: two case reports.
2007 Mar 30
Association between 5-HT2A, TPH1 and GNB3 genotypes and response to typical neuroleptics: a serotonergic approach.
2007 May 23
Enantioseparation of phenothiazines in CD-modified CZE using single isomer sulfated CD as a chiral selector.
2007 Nov
Quetiapine and drug interactions: evidence from a routine therapeutic drug monitoring service.
2007 Oct
[Recurrent dysregulation of body temperature during antipsychotic pharmacotherapy].
2008 Mar
Role of selenium in heart lesions produced by neuroleptics in the rabbit.
2008 Mar
Patents

Patents

Sample Use Guides

Levomepromazine Injection may be administered by intramuscular injection or intravenous injection after dilution with an equal volume of normal saline. The usual dose for adults and the elderly is 12.5 mg to 25 mg (0.5 ml to 1 ml) by intramuscular injection, or by the intravenous route after dilution with an equal volume of normal saline immediately before use. In cases of severe agitation, up to 50 mg (2ml) may be used, repeated every 6 to 8 hours. Continuous subcutaneous infusion: Levomepromazine Injection may be administered over a 24 hour period via a syringe driver. The required dose of Levomepromazine Injection (25 mg to 200 mg per day) should be diluted with the calculated volume of normal saline. Levomepromazine tablets 25 mg may be substituted for the injection if oral therapy is more convenient.
Route of Administration: Other
In Vitro Use Guide
Curator's Comment: The effects of levomepromazine, chlorpromazine and their sulfoxides were studied on spontaneously beating and on electrically driven rat atria in vitro. Levomepromazine sulfoxide produced a dose-dependent decrease in the work index of spontaneously beating atria and in the contractile force of electrically driven atria. At higher concentrations, levomepromazine sulfoxide caused a pronounced increase in the threshold for electrical stimulation and the effective refractory period.
Unknown
Substance Class Chemical
Created
by admin
on Sat Dec 16 09:06:25 GMT 2023
Edited
by admin
on Sat Dec 16 09:06:25 GMT 2023
Record UNII
Z6CBC7JI8K
Record Status Validated (UNII)
Record Version
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Name Type Language
LEVOMEPROMAZINE EMBONATE
WHO-DD  
Common Name English
2-NAPHTHALENECARBOXYLIC ACID, 4,4'-METHYLENEBIS(3-HYDROXY-, COMPD. WITH (R)-2-METHOXY-N,N,.BETA.-TRIMETHYL-10H-PHENOTHIAZINE-10-PROPANAMINE (1:1)
Systematic Name English
Levomepromazine embonate [WHO-DD]
Common Name English
J311.015J
Code English
4,4'-METHYLENEBIS(3-HYDROXYNAPHTHALENE-2-CARBOXYLIC) ACID, COMPOUND WITH (R)-2-METHOXY-N,N,.BETA.-TRIMETHYL-10H-PHENOTHIAZINE-10-PROPYLAMINE (1:1)
Systematic Name English
10H-PHENOTHIAZINE-10-PROPANAMINE, 2-METHOXY-N,N,.BETA.-TRIMETHYL-, (R)-, 4,4'-METHYLENEBIS(3-HYDROXY-2-NAPHTHALENECARBOXYLATE) (1:1)
Systematic Name English
4-((3-CARBOXY-2-HYDROXYNAPHTHALEN-1-YL)METHYL)-3-HYDROXYNAPHTHALENE-2-CARBOXYLIC ACID,(2R)-3-(2-METHOXYPHENOTHIAZIN-10-YL)-N,N,2-TRIMETHYLPROPAN-1-AMINE
Systematic Name English
Code System Code Type Description
ECHA (EC/EINECS)
263-476-0
Created by admin on Sat Dec 16 09:06:25 GMT 2023 , Edited by admin on Sat Dec 16 09:06:25 GMT 2023
PRIMARY
EVMPD
SUB02907MIG
Created by admin on Sat Dec 16 09:06:25 GMT 2023 , Edited by admin on Sat Dec 16 09:06:25 GMT 2023
PRIMARY
CAS
62265-41-2
Created by admin on Sat Dec 16 09:06:25 GMT 2023 , Edited by admin on Sat Dec 16 09:06:25 GMT 2023
PRIMARY
FDA UNII
Z6CBC7JI8K
Created by admin on Sat Dec 16 09:06:25 GMT 2023 , Edited by admin on Sat Dec 16 09:06:25 GMT 2023
PRIMARY
PUBCHEM
86278646
Created by admin on Sat Dec 16 09:06:25 GMT 2023 , Edited by admin on Sat Dec 16 09:06:25 GMT 2023
PRIMARY
SMS_ID
100000086648
Created by admin on Sat Dec 16 09:06:25 GMT 2023 , Edited by admin on Sat Dec 16 09:06:25 GMT 2023
PRIMARY
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