MESORIDAZINE

Details

Stereochemistry	MIXED
Molecular Formula	C21H26N2OS2
Molecular Weight	386.574
Optical Activity	UNSPECIFIED
Defined Stereocenters	0 / 2
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

CN1CCCCC1CCN2C3=CC(=CC=C3SC4=C2C=CC=C4)[S+](C)[O-]

InChI

InChIKey=SLVMESMUVMCQIY-UHFFFAOYSA-N

InChI=1S/C21H26N2OS2/c1-22-13-6-5-7-16(22)12-14-23-18-8-3-4-9-20(18)25-21-11-10-17(26(2)24)15-19(21)23/h3-4,8-11,15-16H,5-7,12-14H2,1-2H3

HIDE SMILES / InChI

Molecular Formula	C21H26N2OS2
Molecular Weight	386.574
Charge	0
Count

Stereochemistry	RACEMIC
Additional Stereochemistry	No
Defined Stereocenters	0 / 1
E/Z Centers	0
Optical Activity	( + / - )

Description
Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/2001/16-774S073.pdf

Mesoridazine (brand name Serentil) is a phenothiazine antipsychotic. It was marketed in the U.S. for the treatment of schizophrenia, behavioral problems in mental deficiency and chronic brain syndrome, alcoholism and psychoneurotic symptoms, such as anxiety and tension. Due to the risk of serious cardiac events the indicated use of Serentil was limited to severely ill schizophrenic patients who fail other therapies. Based upon animal studies, mesoridazine acts indirectly on reticular formation, whereby neuronal activity into reticular formation is reduced without affecting its intrinsic ability to activate the cerebral cortex. Mesoridazine shows a moderate adrenergic blocking activity in vitro and in vivo and antagonizes 5-hydroxytryptamine in vivo.

CNS Activity

Approval Year

Targets

Primary Target	Pharmacology	Condition	Potency
D(2) dopamine receptor 58 Target ID: P14416 Gene ID: 1813.0 Gene Symbol: DRD2 Target Organism: Homo sapiens (Human) Sources: https://www.ncbi.nlm.nih.gov/pubmed/15357957	Antagonist 2778		3.0 nM [Ki]
5-hydroxytryptamine receptor 2A 69 Target ID: P28223 Gene ID: 3356.0 Gene Symbol: HTR2A Target Organism: Homo sapiens (Human) Sources: https://www.ncbi.nlm.nih.gov/pubmed/15357957	Antagonist 2778

Conditions

Condition	Modality	Targets	Highest Phase	Product
Schizophrenia 298 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/2001/16-774S073.pdf	Primary		Approved 8429	SERENTIL Approved Use Indicated for treatment severely ill schizophrenic patients who have failed to respond adequately to treatment with other antipsychotic drugs Launch Date 1970
Psychosis 16 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/2001/16-774S073.pdf	Primary		Approved 8429	SERENTIL Approved Use Psychosis Launch Date 1970

C_max

Value	Dose	Co-administered	Analyte	Population
240 ng/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/17410120/	50 mg single, oral dose: 50 mg route of administration: Oral experiment type: SINGLE co-administered:		MESORIDAZINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: FEMALE / MALE food status: FASTED

AUC

Value	Dose	Co-administered	Analyte	Population
2400 ng × h/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/17410120/	50 mg single, oral dose: 50 mg route of administration: Oral experiment type: SINGLE co-administered:		MESORIDAZINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: FEMALE / MALE food status: FASTED

T_1/2

Value	Dose	Co-administered	Analyte	Population
12.5 h EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/17410120/	50 mg single, oral dose: 50 mg route of administration: Oral experiment type: SINGLE co-administered:		MESORIDAZINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: FEMALE / MALE food status: FASTED

F_unbound

Value	Dose	Co-administered	Analyte	Population
75% EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/17410120/	50 mg single, oral dose: 50 mg route of administration: Oral experiment type: SINGLE co-administered:		MESORIDAZINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: FEMALE / MALE food status: FASTED

Doses

Dose	Population	Adverse events
3.1 g single, oral Overdose Dose: 3.1 g Route: oral Route: single Dose: 3.1 g Sources: https://pubmed.ncbi.nlm.nih.gov/3177997/	healthy, 20 years n = 1 Health Status: healthy Condition: suicide attempt Age Group: 20 years Sex: F Population Size: 1 Sources: https://pubmed.ncbi.nlm.nih.gov/3177997/	Disc. AE: Ventricular arrhythmias and cardiac arrest... AEs leading to discontinuation/dose reduction: Ventricular arrhythmias and cardiac arrest (grade 4, 1 patient) Sources: https://pubmed.ncbi.nlm.nih.gov/3177997/
16 ug/mL single, oral Overdose Dose: 16 ug/mL Route: oral Route: single Dose: 16 ug/mL Sources: https://pubmed.ncbi.nlm.nih.gov/3824877/	unhealthy, 23 years n = 1 Health Status: unhealthy Condition: mentally retarded Age Group: 23 years Sex: F Population Size: 1 Sources: https://pubmed.ncbi.nlm.nih.gov/3824877/	Disc. AE: Death... AEs leading to discontinuation/dose reduction: Death (grade 5, 1 patient) Sources: https://pubmed.ncbi.nlm.nih.gov/3824877/
10 mg 1 times / day steady, oral Recommended Dose: 10 mg, 1 times / day Route: oral Route: steady Dose: 10 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/1140909/	healthy, 48-62 years n = 7 Health Status: healthy Age Group: 48-62 years Sex: unknown Population Size: 7 Sources: https://pubmed.ncbi.nlm.nih.gov/1140909/	Sources: https://pubmed.ncbi.nlm.nih.gov/1140909/

AEs

AE	Significance	Dose	Population
Ventricular arrhythmias and cardiac arrest	grade 4, 1 patient Disc. AE	3.1 g single, oral Overdose Dose: 3.1 g Route: oral Route: single Dose: 3.1 g Sources: https://pubmed.ncbi.nlm.nih.gov/3177997/	healthy, 20 years n = 1 Health Status: healthy Condition: suicide attempt Age Group: 20 years Sex: F Population Size: 1 Sources: https://pubmed.ncbi.nlm.nih.gov/3177997/
Death	grade 5, 1 patient Disc. AE	16 ug/mL single, oral Overdose Dose: 16 ug/mL Route: oral Route: single Dose: 16 ug/mL Sources: https://pubmed.ncbi.nlm.nih.gov/3824877/	unhealthy, 23 years n = 1 Health Status: unhealthy Condition: mentally retarded Age Group: 23 years Sex: F Population Size: 1 Sources: https://pubmed.ncbi.nlm.nih.gov/3824877/

Overview

CYP3A4	CYP2C9	CYP2D6	hERG
			inhibitor 1612

OverviewOther

Other Inhibitor	Other Substrate	Other Inducer
	P-gp 1537

Drug as victim

Target	Modality	Activity	Metabolite	Clinical evidence
P-gp 1537	substrate 3367 Sources: https://jpet.aspetjournals.org/content/jpet/365/2/336.full.pdf?with-ds=yes#page=4 Page: 4.0	yes

Tox targets

Target	Modality	Activity	Metabolite	Clinical evidence
hERG 1647	inhibitor 1626 Sources: https://pubmed.ncbi.nlm.nih.gov/14734057/

Sourcing

Vendor/Aggregator	ID	URL
ChEBI	CHEBI:6780	https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:6780
ChemicalBook	CB0157447	https://www.chemicalbook.com/ChemicalProductProperty_EN_CB0157447
ChemicalBook	CB0875422	https://www.chemicalbook.com/ChemicalProductProperty_EN_CB0875422

PubMed

Title	Date	PubMed
Neuroleptics and neurologic reactions.	1973 Mar	4144147
Death attributed to ventricular arrhythmia induced by thioridazine in combination with a single Contac C capsule.	1978 Oct 7	709472
Rapid death resulting from mesoridazine overdose.	1987 Feb	3824877
Cardiac arrhythmia following rapid imipramine withdrawal.	1989 Feb 15	2467692
Inverse agonist actions of typical and atypical antipsychotic drugs at the human 5-hydroxytryptamine(2C) receptor.	2001 Oct	11561066
Synthesis, receptor binding and functional studies of mesoridazine stereoisomers.	2004 Sep 6	15357957
Intrinsic efficacy of antipsychotics at human D2, D3, and D4 dopamine receptors: identification of the clozapine metabolite N-desmethylclozapine as a D2/D3 partial agonist.	2005 Dec	16135699
Efficacy of typical and atypical antipsychotics for primary and comorbid anxiety symptoms or disorders: a review.	2006 Sep	17017818
Factors affecting drug concentrations and QT interval during thioridazine therapy.	2007 Nov	17460606
Comparison of the effects of thioridazine and mesoridazine on the QT interval in healthy adults after single oral doses.	2007 Nov	17410120
Inappropriate prescribing in the hospitalized elderly patient: defining the problem, evaluation tools, and possible solutions.	2010 Apr 7	20396637
Identification of novel substrates for human cytochrome P450 2J2.	2010 Feb	19923256
Phenothiazines inhibit hepatitis C virus entry, likely by increasing the fluidity of cholesterol-rich membranes.	2013 Jun	23529728

Patents

Sample Use Guides

In Vivo Use Guide

A starting dose of 50 mg of Serentil (Mesoridazine) three times a day is recommended. The usual optimal total daily dose range is 100-400 mg per day.

Route of Administration: Oral

In Vitro Use Guide

[3H]IP production was measured in COS-7 cells expressing human 5-HT2C-INI receptors at 2.7 pmol/mg of protein. Cells were treated with or without 1 uM Mesoridazine. Basal activity was determined by subtracting [3H]IP produced in cells transfected with vector only.

Substance Class	Chemical Created by `admin` on `Sat Dec 16 17:21:13 GMT 2023` Edited by `admin` on `Sat Dec 16 17:21:13 GMT 2023`
Record UNII	5XE4NWM740
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

MESORIDAZINE

Official Name

English

mesoridazine [INN]

Common Name

English

THIORIDAZINE-2-SULFOXIDE

Common Name

English

MESORIDAZINE [MI]

Common Name

English

MESORIDAZINE [VANDF]

Common Name

English

Mesoridazine [WHO-DD]

Common Name

English

NC-123

Code

English

NSC-186066

Code

English

LIDANAR

Brand Name

English

THIORIDAZINE IMPURITY B [EP IMPURITY]

Common Name

English

TPS-23

Code

English

10H-PHENOTHIAZINE, 10-(2-(1-METHYL-2-PIPERIDINYL)ETHYL)-2-(METHYLSULFINYL)-

Systematic Name

English

MESORIDAZINE [HSDB]

Common Name

English

10-[2(1-Methyl-2-piperidyl)ethyl]-2-(methylsulfinyl)-phenothiazine

Systematic Name

English

MESORIDAZINE [USAN]

Common Name

English

MESORIDAZINE [MART.]

Common Name

English

THIORIDAZINE HYDROCHLORIDE IMPURITY B [EP IMPURITY]

Common Name

English

Classification Tree Code System Code

NDF-RT

N0000007544