Vardenafil inhibits PDE5 with greater selectivity than sildenafil. Critically, it does not significantly inhibit PDE6, the enzyme involved in phototransduction in the retina. This selectivity is why vardenafil does not cause the blue-green color vision disturbances that some sildenafil users experience.
Pros & Cons
Pros
No PDE6 inhibition — no color vision effects
8-hour duration — longer than sildenafil's 4–6 hours
Nearly identical efficacy to sildenafil
Available in chewable form from select providers
Cons
Less extensively studied than sildenafil or tadalafil
Not available from as many telehealth providers
Can be more expensive than generic sildenafil
Common Doses
8mg, 8.5mg, 11.2mg (chewable) · standard oral doses vary by provider
Found In
MEDVi Quad (only combination formula reviewed)
Vardenafil is one of three PDE5 inhibitors in MEDVi Quad — its selective profile complements sildenafil's broader PDE inhibition by adding fast-acting coverage without color vision effects.
Medical & Advertising Disclaimer
This page is for informational and comparison purposes only and does not constitute medical advice. All medications require a prescription from a licensed clinician. ExploreTreatments/BestEdTreatment.com may receive compensation when you click affiliate links. Rankings are editorially independent.