| Erectile dysfunction, also known as ED, is the difficulty in achieving and maintaining an erection firm enough for sexual intercourse. ED is common, and treatments, such as prescription medications, are available. But you may have seen advertisements for herbs or dietary supplements claiming to improve sexual performance. Would they work? Dietary supplements and other natural remedies for erectile dysfunction have a long history of use in various cultures. However, they have not been studied or tested as extensively as prescription ED medications. Prescription medications include sildenafil (Viagra), vardenafil, tadalafil, and avanafil. These are called PDE5 inhibitors. |