Vidalista 40 is a popular drug used to treat impotence. Tadalafil acts as the active ingredient in Vidalista 40 Mg. Vidalista 40 is taken 1 hour before intercourse, after which you, i.e. the couple, can enjoy their sex life better. It is important to consult a doctor before taking Vidalista 40. The peculiarity of the Vidalista 40 Mg drug is that its effect lasts for 36 hours after taking it. And take this drug only once in 24 hours.