Erec aq tile dysfu rn nction (ED) or (male) impo xy tence is a sex gw ual dysfun lsb ction characterized by the inability to develop or main xlv tain an erect gx ion of the pe ya nis. There are various under zi lying causes, such as cardi os ovascular leakage and diab nzs etes, many of which are medi ucp cally trea ihz table.

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