Vidalista 40 mg contains tadalafil, the same active ingredient found in Cialis, and it is used to treat Erectile Dysfunction. It is a higher-dose option compared to standard strengths and is typically prescribed when lower doses are not effective.Tadalafil increases blood flow to the penis by relaxing blood vessels. This helps achieve and maintain an erection, but only when there is sexual stimulation. It does not increase sexual desire. https://www.genericday.com/vidalista-40-mg.html