Vidalista 40 is usually the best drug to solve the problem of erectile dysfunction. Tadalafil acts as the active ingredient in Vidalista 40. Vidalista 40 Mg tablets are taken one hour before sex. The effect lasts for 36 hours after taking it. Is it the best drug to solve the sexual problem? These tablets are the best drug used by men. Vidalista 40mg is used in pregnant women using these pills. These tablets should be kept away from small children and pets.