Vidalista 20 is one erectile dysfunction therapy alternative. It typically takes 30 to 60 minutes to start working, and it can last up to 36 hours. Users should be aware of how their bodies respond to the medication because it can produce dizziness or impair judgment, so they should avoid doing things like driving just before. If you are a male over 18 who suffers from erectile dysfunction or impotence, you qualify for a Vidalista 20. Having said that, women shouldn't use the medication because it isn't intended for them. Take with or without food, as prescribed by your doctor.