This tablet is used to treat erectile dysfunction (ED) and pulmonary arterial hypertension (PAH). In ED it increases the blood flow to the penis to help them get an erection. And in PAH, it relaxes or widens the blood vessels inside the lungs, which reduces blood pressure in the lungs.
No, it doesn’t affect fertility; it just relaxes the muscles and increases blood flow in the penis.
No, it doesn’t delay ejaculation; it is only used to treat erectile dysfunction.