Drug Class: Phosphodiesterase-5 inhibitor

Sildenafil

What is Sildenafil? Sildenafil is a prescription medication that belongs to a class of drugs called phosphodiesterase type 5 (PDE5)…

Tadalafil

Tadalafil Drug Profile What is Tadalafil? Tadalafil is a prescription medication belonging to a class of drugs called phosphodiesterase type…