Vidalista 20 mg works by increasing blood flow to the penis during sexual stimulation, which helps men achieve and maintain an erection. It does not automatically produce an erection but rather enhances the body's natural response to sexual stimulation. Before taking Vidalista 20 mg or any other medication for ED, it's essential to consult with a healthcare provider. They can assess your medical history, current medications, and any underlying health conditions to ensure that Vidalista is safe and appropriate for you.