Erec ea tile dysfu xo nction (ED) or (male) impo kc tence is a sex ugq ual dysfun eq ction characterized by the inability to develop or main pjp tain an erect hsa ion of the pe sx nis. There are various under gd lying causes, such as cardi db ovascular leakage and diab dgm etes, many of which are medi xrn cally trea iu table.

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