Erectile dysfunction treatment: What is Sildenafil used for? Erectile dysfunction (ED) is a common problem that can cause difficulty getting and maintaining an erection. There are many possible treatments for ED, but some people prefer to use medications. Sildenafil is a type of medication that is used to treat ED. It works by helping to improve blood flow to the penis. Read more here https://joefossrange.com/what-is-sildenafil/