National Cancer Institute Thesaurus

Last uploaded: February 23, 2024
Preferred Name

Sildenafil Citrate

Synonyms

SILDENAFIL CITRATE

Sildenafil Citrate

Revatio

Viagra

sildenafil

Definitions

The citrate salt form of sildenafil, an orally bioavailable pyrazolopyrimidinone derivative structurally related to zaprinast, with vasodilating and potential anti-inflammatory activities. Upon oral administration, sildenafil selectively targets and inhibits cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5), thereby inhibiting the PDE5-mediated degradation of cGMP found in smooth muscle and increasing cGMP availability. This results in prolonged smooth muscle relaxation in the corpus cavernosum of the penis, thereby causing vasodilation, blood engorgement and a prolonged penile erection. In the smooth muscle of the pulmonary vasculature, the increase in cGMP results in smooth muscle relaxation, vasodilation of the pulmonary vascular bed, relieving pulmonary hypertension and increasing blood flow in the lungs. In addition, sildenafil may reduce airway inflammation and mucus production.

ID

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C26670

Accepted_Therapeutic_Use_For

Pulmonary hypertension

Erectile dysfunction

ALT_DEFINITION

A drug used to treat erectile dysfunction. Viagra relaxes the smooth muscle of the penis to allow increased blood flow and erection. It is a type of phosphodiesterase inhibitor.

CAS_Registry

171599-83-0

CHEBI_ID

CHEBI:58987

Chemical_Formula

C22H30N6O4S.C6H8O7

code

C26670

Concept_In_Subset

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

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C173381

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C173383

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C116978

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C116977

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C107631

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

Contributing_Source

CTRP

FDA

DEFINITION

The citrate salt form of sildenafil, an orally bioavailable pyrazolopyrimidinone derivative structurally related to zaprinast, with vasodilating and potential anti-inflammatory activities. Upon oral administration, sildenafil selectively targets and inhibits cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5), thereby inhibiting the PDE5-mediated degradation of cGMP found in smooth muscle and increasing cGMP availability. This results in prolonged smooth muscle relaxation in the corpus cavernosum of the penis, thereby causing vasodilation, blood engorgement and a prolonged penile erection. In the smooth muscle of the pulmonary vasculature, the increase in cGMP results in smooth muscle relaxation, vasodilation of the pulmonary vascular bed, relieving pulmonary hypertension and increasing blood flow in the lungs. In addition, sildenafil may reduce airway inflammation and mucus production.

Display_Name

Sildenafil Citrate

FDA_UNII_Code

BW9B0ZE037

FULL_SYN

SILDENAFIL CITRATE

Sildenafil Citrate

Revatio

Viagra

sildenafil

Has_Free_Acid_Or_Base_Form

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C61940

Has_Target

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C95469

label

Sildenafil Citrate

Legacy Concept Name

Sildenafil_Citrate

NCI_Drug_Dictionary_ID

269137

PDQ_Closed_Trial_Search_ID

269137

PDQ_Open_Trial_Search_ID

269137

Preferred_Name

Sildenafil Citrate

prefixIRI

Thesaurus:C26670

Semantic_Type

Organic Chemical

Pharmacologic Substance

UMLS_CUI

C0724693

subClassOf

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C2127

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C29707

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