Erec rgr tile dysfu ro nction (ED) or (male) impo jmw tence is a sex yq ual dysfun zff ction characterized by the inability to develop or main yiy tain an erect euv ion of the pe yj nis. There are various under nr lying causes, such as cardi cxi ovascular leakage and diab wd etes, many of which are medi ueo cally trea jx table.

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