Vilitra is taken for impotence or erectile dysfunction in men. This medicine contains an ingredient called vardenafil which helps in increasing the blood flow to the tissues of the penis in men. This medicine works effectively when taken 30 minutes or 1 hour before sexual intercourse. You can take this medicine before or after food. The effect of this medicine lasts for 4 to 6 hours. This medicine is only taken by men aged 18 to 65 years.