One powerful tadalafil tablet is Vidalista 40mg.  which is a medication made especially to treat male erectile dysfunction (ED).  For them to work, stronger dosages are needed.

This medication increases blood flow to the penis and has a 36-hour half-life.  It enables men to get and keep a powerful erection when engaging in sexual activity.  It has been dubbed "the weekend pill."

The underlying cause of ED is the body's impaired blood circulation.  As long as blood is flowing into the penis, it stays erect.

The erection also decreases if the blood supply is interrupted for any reason.