Vilitra is a medication used to treat erectile dysfunction (ED) in men. It contains vardenafil as its active ingredient. Vardenafil is a phosphodiesterase type 5 (PDE5) inhibitor, similar to sildenafil and tadalafil. Vilitra works by increasing blood flow to the penile, facilitating the ability to achieve and maintain an erection during physical stimulation. Vardenafil is the primary active ingredient in Vilitra. Like other PDE5 inhibitors, it helps relax the smooth muscles in the penile blood vessels, leading to increased blood flow to the penile.