Chemical formula: C₄₃H₆₇N₁₁O₁₂S₂  Molecular mass: 994.19 g/mol  PubChem compound: 5311010

Active ingredient description

Atosiban is a synthetic peptide which is a competitive antagonist of human oxytocin at receptor level. In human pre-term labour, atosiban at the recommended dosage antagonises uterine contractions and induces uterine quiescence.

Medicine classification

This medicinal substance has been classified in the anatomical therapeutic chemical (ATC) classification according to its main therapeutic use as follows:

ATC code Group title Classification
G02CX01 Atosiban G Genito urinary system and sex hormones → G02 Other gynecologicals → G02C Other gynecologicals → G02CX Other gynecologicals
Discover more medicines within G02CX01

Product monographs

Competent medicine agencies globally have authorized commercialization of this active ingredient according to these medication package inserts (MPIs):

Title Information Source Document Type  
TRACTOCILE Solution for injection European Medicines Agency (EU) MPI, EU: SmPC

Structural formula

Graphic representation of the active ingredient's molecular structure

External identifiers

CAS Substance: 90779-69-4
DrugBank Drug: DB09059
KEGG Drug: D03008
PubChem Compound: 5311010
RxNorm Ingredient: 59639
SNOMED-CT Concept: 391792002
Atosiban (substance)
UNII Identifier: 081D12SI0Z


Atosiban is an active ingredient of these brands:

Austria (AT)

Brazil (BR)

Croatia (HR)

Cyprus (CY)

Estonia (EE)

Finland (FI)

France (FR)

Hong Kong (HK)

Ireland (IE)

Italy (IT)

Lithuania (LT)

Mexico (MX)

Netherlands (NL)

Poland (PL)

Romania (RO)

South Africa (ZA)

Spain (ES)

Turkey (TR)

United Kingdom (UK)

Note the following: The list of brand names is continuously updated, and thus does not include the total of products circulating worldwide.

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