Vilitra 20mg is usually taken by people who have occasional problems with erectile dysfunction. You simply need to take an oral tablet at least 30 minutes before you intend to have sex. If you want to take it regularly, talk to a doctor and figure out a safe dose for you. In general, Vilitra 5mg or 10mg tablets are recommended for daily use, but your doctor may also prescribe the 20mg tablets if they think you need them. However, for people over the age of 60, only Vilitra 5mg is considered safe to consume daily.