You will have been prescribed medicine for erectile dysfunction (ED), such as Vardenafil, Tadalafil, and Sildenafil. These drugs are often known as phosphodiesterase type 5 (PDE5) inhibitors. They work by rising blood flow to the penis and help you maintain an erection. ED treatment could be very efficient and may improve your quality of life, but it is best to bear in mind of some potential...