Erec su tile dysfu wb nction (ED) or (male) impo pi tence is a sex wkn ual dysfun tc ction characterized by the inability to develop or main kfz tain an erect xin ion of the pe qfz nis. There are various under eiw lying causes, such as cardi wg ovascular leakage and diab jr etes, many of which are medi avz cally trea oq table.

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