ANTAZOLINE PHOSPHATE

First approved in 1948

Details

Stereochemistry	ACHIRAL
Molecular Formula	C17H19N3.H3O4P
Molecular Weight	363.348
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

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

InChI

InChIKey=DUIGUKRYYAGJAF-UHFFFAOYSA-N

InChI=1S/C17H19N3.H3O4P/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);(H3,1,2,3,4)

HIDE SMILES / InChI

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
Neuroprotective activity of antazoline against neuronal damage induced by limbic status epilepticus.	2003	12890517
Influence of antazoline and ketotifen on the anticonvulsant activity of conventional antiepileptics against maximal electroshock in mice.	2004 Aug	15163441
The thermodynamic dissociation constants of ambroxol, antazoline, naphazoline, oxymetazoline and ranitidine by the regression analysis of spectrophotometric data.	2004 Feb 27	18969326
Net analyte signal-based simultaneous determination of antazoline and naphazoline using wavelength region selection by experimental design-neural networks.	2006 Feb 15	18970453
Evidence for imidazoline receptors involvement in the agmatine antidepressant-like effect in the forced swimming test.	2007 Jun 22	17445795
[Histamine and the convulsive threshold or effectiveness of antiepileptic drugs].	2008	19205365
Human and mouse trace amine-associated receptor 1 have distinct pharmacology towards endogenous monoamines and imidazoline receptor ligands.	2009 Oct 23	19725810
Simultaneous determination of antazoline and naphazoline by the net analyte signal standard addition method and spectrophotometric technique.	2010 Nov-Dec	21313830
Profiling of a prescription drug library for potential renal drug-drug interactions mediated by the organic cation transporter 2.	2011 Jul 14	21599003

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 PHOSPHATE

Common Name

English

Antazoline phosphate [WHO-DD]

Common Name

English

VASOCON-A COMPONENT ANTAZOLINE PHOSPHATE

Common Name

English

NSC-755865

Code

English

ANTAZOLINE PHOSPHATE [ORANGE BOOK]

Common Name

English

1H-IMIDAZOLE-2-METHANAMINE, 4,5-DIHYDRO-N-PHENYL-N-(PHENYLMETHYL)-, PHOSPHATE (1:1)

Systematic Name

English

ANTAZOLINE PHOSPHATE [USP MONOGRAPH]

Common Name

English

2-[(N-Benzylanilino)methyl]-2-imidazoline phosphate (1:1)

Systematic Name

English

ANTAZOLINE PHOSPHATE [MART.]

Common Name

English

ANTAZOLINE PHOSPHATE [USP-RS]

Common Name

English

ANTAZOLINE PHOSPHATE [MI]

Common Name

English

ANTAZOLINE PHOSPHATE [VANDF]

Common Name

English

ANTAZOLINE PHOSPHATE COMPONENT OF VASOCON-A

Common Name

English

Classification Tree Code System Code

NCI_THESAURUS

C29578