Erec cvn tile dysfu uf nction (ED) or (male) impo as tence is a sex fk ual dysfun yah ction characterized by the inability to develop or main wh tain an erect wf ion of the pe qxh nis. There are various under qrb lying causes, such as cardi lj ovascular leakage and diab bxw etes, many of which are medi xsm cally trea whr table.

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