Tamsulosin Other names: Tamsulosin hydrochloride

Chemical formula: C₂₀H₂₈N₂O₅S  Molecular mass: 408.512 g/mol  PubChem compound: 129211

Active ingredient description

Tamsulosin binds selectively and competitively to post-synaptic α1-adrenoreceptors, prevailingly their subtypes designated α1A and α1D. Thus relaxation of smooth muscles of the prostate and urethra is achieved, which leads to a reduction of tonus and an improvement of the urinary flow.

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
G04CA02 Tamsulosin G Genito urinary system and sex hormones → G04 Urologicals → G04C Drugs used in benign prostatic hypertrophy → G04CA Alpha-adrenoreceptor antagonists
Discover more medicines within G04CA02

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  
FLOMAX Capsule FDA, National Drug Code (US) MPI, US: SPL/PLR
OMSULA Prolonged-release capsule, hard Medicines & Healthcare Products Regulatory Agency (GB) MPI, EU: SmPC

Structural formula

Graphic representation of the active ingredient's molecular structure

External identifiers

CAS Substance: 106133-20-4
DrugBank Drug: DB00706
PubChem Compound: 129211
RxNorm Ingredient: 77492
SNOMED-CT Concept: 372509005
Tamsulosin (substance)
UNII Identifier: 11SV1951MR
TAMSULOSIN HYDROCHLORIDE
UNII Identifier: G3P28OML5I
TAMSULOSIN

Medicines

Tamsulosin is an active ingredient of these brands:

United States (US)

Albania (AL)

Australia (AU)

Austria (AT)

Brazil (BR)

Canada (CA)

Croatia (HR)

Cyprus (CY)

Ecuador (EC)

Estonia (EE)

Finland (FI)

France (FR)

Hong Kong (HK)

Ireland (IE)

Israel (IL)

Japan (JP)

Lithuania (LT)

Malta (MT)

Mexico (MX)

Netherlands (NL)

Nigeria (NG)

Poland (PL)

Romania (RO)

Singapore (SG)

South Africa (ZA)

Spain (ES)

Tunisia (TN)

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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