Vilitra 40 Tablet is used to treat erectile dysfunction in men. It increases blood flow to the penis to help men get an erection. It works by helping to relax the blood vessels in your penis, allowing blood to flow into your penis when you get sexually excited. Vilitra 20 tablets may be taken on an empty stomach or with a meal. It should be strictly taken as advised by your doctor. The medicine will only help you to get an erection if you are sexually stimulated. You should take it about one hour before you plan to have sex.