Filitra is a medication used for the treatment of erectile dysfunction (ED) in men. It contains the active ingredient vardenafil, which is a phosphodiesterase type 5 (PDE5) inhibitor. Vardenafil works by increasing blood flow to the penis during sexual stimulation, facilitating the ability to achieve and maintain an erection. Filitra is typically taken orally with water, about 25 to 60 minutes before anticipated sexual activity. Sexual stimulation is necessary for the medication to work effectively.