Vilitra 40 is a medication containing 40 mg of Vardenafil, a well-known PDE5 inhibitor. PDE5 inhibitors work by relaxing blood vessels and increasing blood flow to the penis, helping to achieve and maintain an erection when sexually stimulated. Vilitra is often compared to other Performance issues drugs like Viagra (Sildenafil) and Cialis (Tadalafil), but it has its unique properties, including a specific dosage and onset time.