Erec sh tile dysfu ht nction (ED) or (male) impo wea tence is a sex cxp ual dysfun iq ction characterized by the inability to develop or main vt tain an erect eh ion of the pe wu nis. There are various under kzg lying causes, such as cardi ljk ovascular leakage and diab hfe etes, many of which are medi uv cally trea hqr table.

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