In 1998 ED drugs came as a blessing for those with erectile disorders. These druigs are of great help. They help you in achieving erections by inhibiting the action of a certain enzyme in your body. This enzyme is phosphodiesterase 5 or PDE 5. This enzyme hinders the production of the hormones that our body requires for sexual stimulation during the time of intercourse. This is the reason why these drugs are famous as PDE - inhibitors. This is how these drugs help in achieving the results. ...