Erec fpc tile dysfu xbn nction (ED) or (male) impo vw tence is a sex xib ual dysfun fn ction characterized by the inability to develop or main xe tain an erect ek ion of the pe ssc nis. There are various under cvl lying causes, such as cardi gv ovascular leakage and diab ju etes, many of which are medi khq cally trea hyp table.

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