National Cancer Institute Thesaurus

Last uploaded: February 23, 2024
Preferred Name

Silodosin

Synonyms

Rapaflo

Rapilif

SILODOSIN

Silodosin

Silodyx

Urief

Urorec

Definitions

An orally available, alpha-1 adrenoreceptor (alpha-1a) selective antagonist that can be used to relieve symptoms of benign prostate hyperplasia (BPH). Upon administration, silodosin selectively binds alpha-1a receptors located in the human prostate and bladder with high affinity and blocks signaling pathways mediated by alpha-1a. Blockade of these receptors causes smooth muscle relaxation, lowers intraurethral pressure, and results in improved urine flow and a reduction in the symptoms of BPH, such as difficulty with urinating, painful urination, urinary frequency and incomplete bladder emptying. In addition, silodosin may be used to improve lower urinary tract symptoms, which can occur after receiving radiation therapy for prostate cancer.

ID

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C81372

CAS_Registry

160970-54-7

Chemical_Formula

C25H32F3N3O4

code

C81372

Concept_In_Subset

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C176424

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C63923

Contributing_Source

FDA

DEFINITION

An orally available, alpha-1 adrenoreceptor (alpha-1a) selective antagonist that can be used to relieve symptoms of benign prostate hyperplasia (BPH). Upon administration, silodosin selectively binds alpha-1a receptors located in the human prostate and bladder with high affinity and blocks signaling pathways mediated by alpha-1a. Blockade of these receptors causes smooth muscle relaxation, lowers intraurethral pressure, and results in improved urine flow and a reduction in the symptoms of BPH, such as difficulty with urinating, painful urination, urinary frequency and incomplete bladder emptying. In addition, silodosin may be used to improve lower urinary tract symptoms, which can occur after receiving radiation therapy for prostate cancer.

FDA_UNII_Code

CUZ39LUY82

FULL_SYN

Rapaflo

Rapilif

SILODOSIN

Silodosin

Silodyx

Urief

Urorec

label

Silodosin

Legacy Concept Name

Silodosin

NCI_Drug_Dictionary_ID

764149

PDQ_Closed_Trial_Search_ID

764149

PDQ_Open_Trial_Search_ID

764149

Preferred_Name

Silodosin

prefixIRI

Thesaurus:C81372

Semantic_Type

Pharmacologic Substance

UMLS_CUI

C1870115

subClassOf

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C29713

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