Sildenafil

All products are provided either as a liquid suspension in a 30mL vial or as raw powder packaged in an individual bag. 

50mg/mL solution (1500mg/30mL)

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Clinical data
Pronunciation	/sɪlˈdɛnəfɪl/ sil-DEN-ə-fil
AHFS/Drugs.com	Monograph
MedlinePlus	a699015
License data	EU EMA: by INN US DailyMed: Sildenafil
Pregnancy category	AU: B1[1]
Routes of administration	Oral (tablets), intravenous, sublingual
ATC code	G04BE03 (WHO)
Pharmacokinetic data
Bioavailability	41% (mean)[7]
Protein binding	~96%
Metabolism	Liver: CYP3A4 (major route), CYP2C9 (minor route)
Metabolites	N-desmethylsildenafil (~50% potency for PDE5)
Onset of action	20 minutes
Elimination half-life	3–4 hours
Excretion	Feces (~80%), urine (~13%)[4]
Identifiers
CAS Number	139755-83-2 7 citrate: 171599-83-0
PubChem CID	135398744 citrate: 135413523
DrugBank	DB00203  citrate: DBSALT000347
ChemSpider	5023  citrate: 56586
UNII	3M7OB98Y7H citrate: BW9B0ZE037
KEGG	D08514  citrate: D02229
ChEBI	CHEBI:9139  citrate: CHEBI:58987
ChEMBL	ChEMBL192  citrate: ChEMBL1737
PDB ligand	VIA (PDBe, RCSB PDB)
CompTox Dashboard (EPA)	DTXSID6023579
ECHA InfoCard	100.122.676
Chemical and physical data
Formula	C22H30N6O4S
Molar mass	474.58 g·mol−1
3D model (JSmol)	Interactive image

**The information provided is intended solely for educational purposes and should not be considered a replacement for professional medical advice. Additionally, it is important to note that research chemicals are intended solely for laboratory study by professional researchers and are not intended for human consumption.**