Sildenafil (Viagra)

Price range: £120.00 through £6,000.00
Available Dosage: 25mg, 50mg, 100mg
Pronunciation: /sɪlˈdɛnəfɪl/ sil-DEN-ə-fil
Onset of action: 20 minutes
Metabolism: Liver: CYP3A4 (major route), CYP2C9 (minor route)
Pregnancy category: : AU: B1;
AHFS/Drugs.com: Monograph
ATC code: G04BE03 (WHO)
Bioavailability: 41% (mean)