Filitra is a medication used to treat erectile dysfunction (ED) in men. It contains vardenafil, a PDE5 inhibitor that helps improve blood flow to the penis during sexual stimulation, supporting the ability to achieve and maintain an erection. Vardenafil works by blocking the PDE5 enzyme, which helps increase the activity of cGMP, a natural chemical that relaxes blood vessels. This allows improved circulation in the penile tissues when a man is sexually aroused. Filitra does not increase sexual desire and does not produce an erection without sexual stimulation.