https://vidalistavilla.com/product/vidalista-20-mg/ 1. It Takes About 20 Minutes to Work The main ingredient in Vidalista 20 is Tadalafil, which works by relaxing the muscles in the penis and allowing blood to flow through the body. It also helps to improve erectile function. Vidalista 20 should be taken about 30 minutes before sexual activity. It should not be taken with nitrates, which can...