DIPYRONE

Details

Stereochemistry	ACHIRAL
Molecular Formula	C13H16N3O4S.Na.H2O
Molecular Weight	351.354
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

O.[Na+].CN(CS([O-])(=O)=O)C1=C(C)N(C)N(C1=O)C2=CC=CC=C2

InChI

InChIKey=UNZIDPIPYUMVPA-UHFFFAOYSA-M

InChI=1S/C13H17N3O4S.Na.H2O/c1-10-12(14(2)9-21(18,19)20)13(17)16(15(10)3)11-7-5-4-6-8-11;;/h4-8H,9H2,1-3H3,(H,18,19,20);;1H2/q;+1;/p-1

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Description
Sources: http://www.un.org/esa/coordination/CL12.pdf

Dipyrone, also known as Metamizole (INN), is an ampyrone sulfonate analgesic, antispasmodic and antipyretic. It was withdrawn from US market in 1977 on the basis of reports of agranulocytosis. Depyrone is still used to treat severe and diffucult for relieving pains of different origin; headache, tooth-ache, pains in the joints, muscles, following traumas and operations, gall and kidney colics, neurites, neuralgias, traumatic cerebrasthenia; inflammation of upper respiratory ways of microbial or virus origin; chorea; febrile states. Mechanism of action of dipyrone is complex. It is believed that dipyrone exerts its action by inhibiting COX-3, and activates opioid and cannabioid systems either itself, or by products of its metabolic degradation.

CNS Activity

Originator

Approval Year

Targets

Primary Target	Pharmacology	Condition	Potency
Prostaglandin G/H synthase 1 30 Target ID: P23219\|\|\|Q5T7T7 Gene ID: 5742.0 Gene Symbol: PTGS1 Target Organism: Homo sapiens (Human) Sources: https://www.ncbi.nlm.nih.gov/pubmed/12242329	Inhibitor 8297

Conditions

Condition	Modality	Targets	Highest Phase	Product
Pain 614 Sources: http://www.actavis.bg/nr/rdonlyres/27cd192d-b3cd-4e81-a7a3-fa80f56bf148/0/neuragin_eng.pdf	Primary		Approved 8429	NEURALGIN Approved Use Severe and diffucult for relieving pains of different origin; headache, tooth-ache, pains in the joints, muscles, following traumas and operations, gall and kidney colics, neurites, neuralgias, traumatic cerebrasthenia; inflammation of upper respiratory ways of microbial or virus origin; chorea; febrile states.
Hyperthermia 5 Sources: http://www.pharmaline.co.il/images/newsletterregistration/teva/07102011/optalgininjdr.pdf	Primary		Approved 8429	OPTALGIN Approved Use Optalgin Injection, by intramuscular administration, is indicated to lower temperature in life-threatening situations, when this cannot be achieved by other means. Hyperthermic patients in critical condition may also be treated in non-hospital environment, under close medical supervision.

PubMed

Title	Date	PubMed
Drug utilization and morbidity statistics for the evaluation of drug safety in Sweden.	1984	6430038
Modifying potential of thirty-one chemicals on the short-term development of gamma-glutamyl transpeptidase-positive foci in diethylnitrosamine-initiated rat liver.	1984 Oct	6150874
Risks of agranulocytosis and aplastic anemia. A first report of their relation to drug use with special reference to analgesics. The International Agranulocytosis and Aplastic Anemia Study.	1986 Oct 3	3747087
Diagnosis of antibody-mediated drug allergy. Pyrazolinone and pyrazolidinedione cross-reactivity relationships.	1987 Nov	3425858
Octreotide dependency and headache: a case report.	1994 Aug	7954762
Spinal and supraspinal antinociceptive action of dipyrone in formalin, capsaicin and glutamate tests. Study of the mechanism of action.	1998 Mar 26	9592021
Modifying effects of a mixture of acetaminophen, aspirin, dipyrone and ethenzamide on a multiorgan initiation model and its carcinogenicity in male F344 rats.	1999 Jan 8	10077225
Urticaria induced by meperidine allergy.	2000 Mar	10753031
Doctor, there's a fly in my soup! Angiotensin-converting enzyme inhibitors, endogenous opioids and visual hallucinations.	2001 Dec	11794927
Metamizol potentiates morphine antinociception but not constipation after chronic treatment.	2002 Apr 26	12063090
Allergic cholestatic hepatitis and exanthema induced by metamizole: verification by lymphocyte transformation test.	2002 Dec	12445177
A comparative study of the antipyretic effects of indomethacin and dipyrone in rats.	2002 Jan	11852909
COX-3, a cyclooxygenase-1 variant inhibited by acetaminophen and other analgesic/antipyretic drugs: cloning, structure, and expression.	2002 Oct 15	12242329
Metamizole intolerance and bronchial asthma.	2002 Sep-Oct	12396961
Cloning, expression, and functional characterization of human cyclooxygenase-1 splicing variants: evidence for intron 1 retention.	2005 Dec	16141368
[Acute intermittent porphyria and oral contraception. Case report].	2006 Mar	16871841

Patents

Sample Use Guides

In Vivo Use Guide

Dipyrone was administered orally, as subcutaneous and intramuscular injections (daily dose 0.25-1 g as 50% solution), or by intravenous injection.

Route of Administration: Other

In Vitro Use Guide

Cyclooxygenase activity was measured by the formation of PGE2 after exposure to exogenous 30 μM acid for 10 min. Dipyrone inhibited COX-1 with IC50 350 uM, and COX-3 with IC50 of 52 uM.

Name

Type

Language

DIPYRONE

Official Name

English

SODIUM (ANTIPYRINYLMETHYLAMINO)METHANESULPHONATE MONOHYDRATE

Common Name

English

ANALGIN

Common Name

English

NSC-758445

Code

English

DIPYRONE [MI]

Common Name

English

SULPYRINE HYDRATE

Common Name

English

DIPYRONE [USAN]

Common Name

English

DIPYRONE MONOHYDRATE

Systematic Name

English

Metamizole sodium monohydrate [WHO-DD]

Common Name

English

METHANESULFONIC ACID, ((2,3-DIHYDRO-1,5-DIMETHYL-3-OXO-2-PHENYL-1H-PYRAZOL-4-YL)METHYLAMINO)-, SODIUM SALT, MONOHYDRATE

Common Name

English

DIPROFARN

Brand Name

English

NOVALGIN

Common Name

English

METAMIZOL

Common Name

English

METHAMPYRONE

Common Name

English

METAMIZOLE SODIUM HYDRATE

Common Name

English

METAMIZOLE SODIUM MONOHYDRATE

Common Name

English

NSC-73205

Code

English

SULPYRINE

Brand Name

English

SULPYRINE HYDRATE [JAN]

Common Name

English

Sodium (antipyrinylmethylamino)methanesulfonate monohydrate

Common Name

English

METAMIZOLE SODIUM MONOHYDRATE [EP MONOGRAPH]

Common Name

English

NOVALDIN

Brand Name

English

((2,3-DIHYDRO-1,5-DIMETHYL-3-OXO-2-PHENYL-1H-PYRAZOL-4-YL)METHYLAMINO)METHANESULFONIC ACID SODIUM SALT MONOHYDRATE

Common Name

English

METAMIZOL MONOHYDRATE

Common Name

English

Classification Tree Code System Code

NCI_THESAURUS

C257