Erec kii tile dysfu ib nction (ED) or (male) impo ec tence is a sex bvzdn ual dysfun ndjfea ction characterized by the inability to develop or main cd tain an erect rbme ion of the pe cnke nis. There are various under qvktle lying causes, such as cardi fnih ovascular leakage and diab oaml etes, many of which are medi j cally trea o table.

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