Last update 03 Jul 2024

Sildenaifl Citrate

Overview

Basic Info

SummaryViagra relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body.Viagra is used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women. This page contains specific information for Viagra, not Revatio. Sildenafil acts by blocking phosphodiesterase 5 (PDE5), an enzyme that promotes breakdown of cGMP, which regulates blood flow in the penis. It requires sexual arousal to work. It also results in dilation of the blood vessels in the lungs. Pfizer originally discovered the medication in 1989 while looking for a treatment for heart-related chest pain. It was approved for medical use in the United States and in the European Union in 1998.
Drug Type
Small molecule drug
Synonyms
1-((3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)-4-ethoxyphenyl)sulfonyl)-4-methylpiperazine, Pahtension, Revatio OD
+ [38]
Target
Mechanism
PDE5A inhibitors(Phosphodiesterase 5A inhibitors)
Originator Organization
Drug Highest PhaseApproved
First Approval Date
US (27 Mar 1998),
RegulationOrphan Drug (US), Orphan Drug (EU), Priority Review (CN), Orphan Drug (JP), Overseas New Drugs Urgently Needed in Clinical Settings (CN)
Login to view First Approval Timeline

Structure

Molecular FormulaC28H38N6O11S
InChIKeyDEIYFTQMQPDXOT-UHFFFAOYSA-N
CAS Registry171599-83-0

External Link

R&D Status

Approved
10 top approved records.
Login
to view more data
IndicationCountry/LocationOrganizationDate
Hypertension, Pulmonary
JP
25 Jan 2008
Familial Primary Pulmonary Hypertension
EU
28 Oct 2005
Familial Primary Pulmonary Hypertension
IS
28 Oct 2005
Familial Primary Pulmonary Hypertension
LI
28 Oct 2005
Familial Primary Pulmonary Hypertension
NO
28 Oct 2005
Pulmonary arterial hypertension associated with congenital heart disease
EU
28 Oct 2005
Pulmonary arterial hypertension associated with congenital heart disease
IS
28 Oct 2005
Pulmonary arterial hypertension associated with congenital heart disease
LI
28 Oct 2005
Pulmonary arterial hypertension associated with congenital heart disease
NO
28 Oct 2005
Pulmonary arterial hypertension associated with connective tissue disease
EU
28 Oct 2005
Pulmonary arterial hypertension associated with connective tissue disease
IS
28 Oct 2005
Pulmonary arterial hypertension associated with connective tissue disease
LI
28 Oct 2005
Pulmonary arterial hypertension associated with connective tissue disease
NO
28 Oct 2005
Pulmonary Arterial Hypertension
US
03 Jun 2005
Erectile Dysfunction
US
27 Mar 1998
Developing
10 top R&D records.
Login
to view more data
IndicationHighest PhaseCountry/LocationOrganizationDate
Heart FailurePhase 3
CA
12 Mar 2018
Hypoxic respiratory failurePhase 3
US
05 Aug 2013
Hypoxic respiratory failurePhase 3
BE
05 Aug 2013
Hypoxic respiratory failurePhase 3
CA
05 Aug 2013
Hypoxic respiratory failurePhase 3
DK
05 Aug 2013
Hypoxic respiratory failurePhase 3
FR
05 Aug 2013
Hypoxic respiratory failurePhase 3
DE
05 Aug 2013
Hypoxic respiratory failurePhase 3
IT
05 Aug 2013
Hypoxic respiratory failurePhase 3
NL
05 Aug 2013
Hypoxic respiratory failurePhase 3
NO
05 Aug 2013
Login to view more data

Clinical Result

Indication
Phase
Evaluation
View All Results
Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2
-
dbgljltihp(cqayancysy) = mmnbpbyfmh kxbihvfpvh (zktvgjdgwg, 0.62)
Positive
18 Jun 2024
Placebo
dbgljltihp(cqayancysy) = qrepbcgauy kxbihvfpvh (zktvgjdgwg, 0.04)
Phase 1
24
pcjbtbrdmp(wokvpwbolh) = A mild decrease in blood pressure was reported in 2 of the 8 neonates after initial dose, but not with subsequent doses qsfpmvuaaf (ftyurpaotg )
Positive
01 Mar 2024
Phase 2
-
gzakgylcmy(jbkpuaxdga): P-Value = 0.02 ~ 0.05
Positive
01 Nov 2023
Placebo
Not Applicable
68
yzytvfurzp(pbromeihyq) = bzrkasbgif uhqtcuppnn (uxqdmdjhmd )
-
27 Aug 2023
Control (without sildenafil)
yzytvfurzp(pbromeihyq) = sdsbwwmewb uhqtcuppnn (uxqdmdjhmd )
Phase 3
265
Placebo
plmmslwatd(xtzpzhmxku) = fnmvhemven jpirqtuurv (luorxjbczg )
Positive
28 Apr 2023
plmmslwatd(xtzpzhmxku) = qznpbmcirx jpirqtuurv (luorxjbczg )
Phase 3
277
almjxwnmrs(grkxmhqnyj) = Placebo-corrected mean increases in walk distance of 45-50 meters were observed with all doses of sildenafil. These increases were significantly different from placebo, but the sildenafil dose groups were not different from each other. xrdjxcegov (kshbmgmqua )
Positive
28 Apr 2023
placebo
Phase 2
18
Placebo
(Placebo Oral Tablet)
scbjxrtpji(ciqqoprzjn) = kvwzmbjknd wxyqqidkoe (kwhvnaendt, nafdizsvwd - bzvbkfwogf)
-
22 Nov 2022
(Sildenafil Citrate)
scbjxrtpji(ciqqoprzjn) = plbbrlrvpe wxyqqidkoe (kwhvnaendt, wkeyycdqwt - cqxjhlbukg)
Phase 2
22
Placebo
(Double-Blind Placebo)
kujzbummbh(vwgxviefxc) = pzkrrmzqco yhjagphvqt (vnrhljyrks, pgtucyilqt - fpryxfzegd)
-
17 Nov 2022
(Open-Label Sildenafil)
kujzbummbh(vwgxviefxc) = danlerclkk yhjagphvqt (vnrhljyrks, ejybycvmub - xrhbfwfodx)
Not Applicable
-
18
vptqtgdpqf(jzyxifwkpa): T/R = 132.1 (90% CI, 122.7 - 142.3)
-
10 Oct 2022
Phase 2
31
blrklpwemm(eaajpussbg) = Sildenafil Cream increased measurable blood flow to the genital tissue compared to placebo cream fvonqifpob (vsihrwgekd )
Positive
29 Aug 2022
Placebo
Login to view more data

Translational Medicine

Boost your research with our translational medicine data.
Boost your research with our translational medicine data.

Deal

Boost your decision using our deal data.
Boost your decision using our deal data.

Core Patent

Boost your research with our Core Patent data.
Boost your research with our Core Patent data.

Clinical Trial

Identify the latest clinical trials across global registries.
Identify the latest clinical trials across global registries.

Approval

Accelerate your research with the latest regulatory approval information.
Accelerate your research with the latest regulatory approval information.

Regulation

Understand key drug designations in just a few clicks with Synapse.
Understand key drug designations in just a few clicks with Synapse.
Get started for free today!
Accelerate Strategic R&D decision making with Synapse, PatSnap’s AI-powered Connected Innovation Intelligence Platform Built for Life Sciences Professionals.
Start your data trial now!
Synapse data is also accessible to external entities via APIs or data packages. Leverages most recent intelligence information, enabling fullest potential.
Bio
Bio Sequences Search & Analysis
Sign up for free
Chemical
Chemical Structures Search & Analysis
Sign up for free