ANTAZOLINE MESYLATE

First approved in 1948

Details

Stereochemistry	ACHIRAL
Molecular Formula	C17H19N3.CH4O3S
Molecular Weight	361.459
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

CS(O)(=O)=O.C(N(CC1=CC=CC=C1)C2=CC=CC=C2)C3=NCCN3

InChI

InChIKey=PIEHFGHAWYGNCY-UHFFFAOYSA-N

InChI=1S/C17H19N3.CH4O3S/c1-3-7-15(8-4-1)13-20(14-17-18-11-12-19-17)16-9-5-2-6-10-16;1-5(2,3)4/h1-10H,11-14H2,(H,18,19);1H3,(H,2,3,4)

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Description
Sources: https://www.drugbank.ca/drugs/DB08799
Curator's Comment: description was created based on several sources, including https://www.ncbi.nlm.nih.gov/mesh/68000865

Antazoline is an antagonist of histamine H1 receptors. It selectively bind to but does not activate histamine H1 receptors, thereby blocking the actions of endogenous histamine, which subsequently leads to temporary relief of the negative symptoms brought on by histamine. Antazoline in combination with naphazoline (VASOCON-A®) is indicated to relieve the symptoms of allergic conjunctivitis.

CNS Activity

Originator

Approval Year

Targets

Primary Target	Pharmacology	Condition	Potency
Histamine H1 receptor 315 Target ID: CHEMBL3943 Sources: https://www.drugbank.ca/drugs/DB08799	Antagonist 2778		38.4 nM [Ki]

Conditions

Condition	Modality	Targets	Highest Phase	Product
Allergic conjunctivitis 100 Sources: http://www.empr.com/vasocon-a/drug/1227/	Palliative		Approved 8429	VASOCON-A Approved Use Temporary relief of ocular redness and itching. Launch Date 1990

PubMed

Title	Date	PubMed
Evaluation of the phencyclidine-like discriminative stimulus effects of novel NMDA channel blockers in rats.	2003 Nov	12851738
Effect of histamine receptor antagonists on aminophylline-induced seizures and lethality in mice.	2005 Jul-Aug	16129921
[Histamine and the convulsive threshold or effectiveness of antiepileptic drugs].	2008	19205365
Demand for food and cocaine in Fischer and Lewis rats.	2009 Feb	19170441
Evidence for the involvement of the noradrenergic system, dopaminergic and imidazoline receptors in the antidepressant-like effect of tramadol in mice.	2010 May	20184917
Simultaneous determination of antazoline and naphazoline by the net analyte signal standard addition method and spectrophotometric technique.	2010 Nov-Dec	21313830

Patents

Sample Use Guides

In Vivo Use Guide

1-2 drops up to 4 times daily.

Route of Administration: Other

In Vitro Use Guide

The antihistaminic agent, antazoline, was tested for its ability to compete for [3H]pyrilamine, [3H]tiotidine and [3H]N-methyl histamine binding to rodent brain H1, H2 and H3 histamine receptors, respectively. Antazoline exhibited the highest affinity for H1-receptors (dissociation constant, Ki = 38.4 +/- 4.4 nM), and was considerably weaker at H2- (K1 = 44,433 +/- 1,763 nM) and H3-receptors (Ki = 42,400 +/- 7,527 nM).

Name

Type

Language

ANTAZOLINE MESYLATE

Common Name

English

ANTAZOLINE MESILATE [MART.]

Common Name

English

NSC-7438

Code

English

N-BENZYL-N-(2-IMIDAZOLIN-2-YLMETHYL)ANILINE METHANESULFONATE

Systematic Name

English

ANTAZOLINE METHANESULPHONATE

Common Name

English

Antazoline mesilate [WHO-DD]

Common Name

English

ANTAZOLINE MESILATE

Common Name

English

N-BENZYL-N-(2-IMIDAZOLIN-2-YLMETHYL)ANILINE METHANESULPHONATE

Systematic Name

English

Classification Tree Code System Code

NCI_THESAURUS

C29578