vidalista is the opposition of the oppressor PDE5 enzyme. Vidalista fights PDE5 and brings it down, restoring the cGMP function to help you gain an erection. When cGMP can do its work efficiently, the blood flow in the penis increases and you gain a firm, lasting erection. When the cGMP is interrupted by PDE5, there is a lack of blood supply in the penis, causing an erection loss. This is where you need Vidalista.