vilitra 40, also known as Vardenafil, is a medicine used by men to treat various sexual issues. It contains an active ingredient known as Vardenafil that increases blood flow to the penis tissues in men. this tablet is only used by men over the age of 18. It works best when taken 30 minutes to 1 hour before sexual intercourse. The effects of Vardenafil last for 4-6 hours.