Vidalista 20 mg medicines helps come through associate degreed maintain an erection, but won't manufacture the erection while not sensual stimulation. Do not use Vidalista 20mg pill if you've got recently taken nitrates (medicines employed in angina or chest pain). Notify your doctor if the erection persists for over 2 hours once sexual activity. Do not take Vidalista 20mg pill if you latterly had a stroke, an attack or if you've got a significant disease or terribly low pressure.