Vidalista pills are used to treat male erectile dysfunction. It increases blood flow to the penis, which aids males in getting an erection. The blood arteries in your penis loosen as you are sexually stimulated, allowing blood to flow into it. Working can take anywhere from 30 to 60 minutes, depending on individual productivity variances. Take it just as prescribed by a doctor and only as required. Vidalista pills can be taken with or without food. It must be taken precisely as directed by your doctor. It is best to take it about before having sex.