Erec nvw tile dysfu lm nction (ED) or (male) impo oa tence is a sex pat ual dysfun ke ction characterized by the inability to develop or main hb tain an erect xk ion of the pe qis nis. There are various under bvz lying causes, such as cardi tc ovascular leakage and diab zp etes, many of which are medi ia cally trea fg table.

3 different tablets are currently avai ed lable from the doc fa tor and these work when there is se rom xual stimul kic ation. Depe juj nding on the treatment, it will need to be taken 20 minutes to 1 hour before se mu x and the period of time over which it works can vary between 3 hours and up to 36 hours.